Questionable positions in the Hard-Talkchess-2020 set

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Jouni
Posts: 2386
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Re: Questionable positions in the Hard-Talkchess-2020 set

Post by Jouni » Wed Jan 20, 2021 5:27 pm

The goal: every position has exactly one winning/drawing move to find! How many are then left? 50?
Jouni

Dann Corbit
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Re: Questionable positions in the Hard-Talkchess-2020 set

Post by Dann Corbit » Wed Jan 20, 2021 5:30 pm

Jouni wrote:
Wed Jan 20, 2021 5:27 pm
The goal: every position has exactly one winning/drawing move to find! How many are then left? 50?
As long as the good alternatives are also hard to find, I see no need for this restriction.
I guess 15% have alternates of some quality.
Taking ideas is not a vice, it is a virtue. We have another word for this. It is called learning.
But sharing ideas is an even greater virtue. We have another word for this. It is called teaching.

Ferdy
Posts: 4527
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Location: Philippines

Re: Questionable positions in the Hard-Talkchess-2020 set

Post by Ferdy » Wed Jan 20, 2021 5:44 pm

Vinvin wrote:
Mon Jan 18, 2021 2:18 am
Revision 2021 to the Hard-Talkchess-2020 set (draft) :

I deleted : too easy positions, bad positions, too hard positions.
It still have doubt about 4 positions. See at bottom.
128 positions left in the set (until now) :

Code: Select all

1B1K1k2/4N2p/3pP1pP/6p1/p7/3N2b1/2r2p2/8 w - - bm Nc6; id "Hard-Talkchess-2020.001" ;
1B1r4/rp2npkp/2b1pbp1/1qp5/nPN1R3/1P1P1QP1/2P2PBP/5R1K w - - bm Qxf6+; id "Hard-Talkchess-2020.002" ;
1N4K1/1pp1p3/7k/2r3pP/p2pp1P1/P6N/8/2B5 w - - bm Nc6; id "Hard-Talkchess-2020.003" ;
1N6/2pp4/3k1P2/p7/1pK1P3/5P1P/3r2N1/8 w - - bm e5+; id "Hard-Talkchess-2020.004" ;
1k6/3p4/1B6/4Pp1p/1p5R/1p4p1/pP3n2/K6n w - - bm Rxh1; id "Hard-Talkchess-2020.007" ;
1nb3rr/2pp3p/p1k2P2/n1q1PN2/P1pR3N/b4PBp/1R2P3/1KQ5 w - - bm Rd6+; id "Hard-Talkchess-2020.008" ;
1q1r3k/3P1pp1/ppBR1n1p/4Q2P/P4P2/8/5PK1/8 w - - bm Rxf6; id "Hard-Talkchess-2020.010" ;
1r1q1rk1/1p2b2p/pN6/P1pP1bp1/5p2/2B2Q2/1P4PP/R4RK1 w - - bm g4; id "Hard-Talkchess-2020.011" ;
1r1rb1k1/5ppp/4p3/1p1p3P/1q2P2Q/pN3P2/PPP4P/1K1R2R1 w - - bm Rxg7+; id "Hard-Talkchess-2020.012" ;
1r2kb1r/p5p1/1np1p1N1/3pPnB1/1p1P2B1/qP6/2PQ1P1P/1K1R3R b k - bm Nc4; id "Hard-Talkchess-2020.013" ;
1r3r2/4bpkp/1qb1p1p1/3pP1P1/p1pP1Q2/PpP2N1R/1Pn1B2P/3RB2K w - - bm Qf6+; id "Hard-Talkchess-2020.014" ;
1r3rk1/3bb1pp/1qn1p3/3pP3/3P1N2/2Q2N2/2P3PP/R1BR3K w - - bm h4; id "Hard-Talkchess-2020.015" ;
1r3rk1/3bbppp/1qn2P2/p2pP1P1/3P4/2PB1N2/6K1/qNBQ1R2 w - - bm Bxh7+; id "Hard-Talkchess-2020.016" ;
1r3rk1/5p1p/p2pb1p1/3Np1P1/2pRPR2/qP2Q1N1/P1PK3P/8 w - - bm Nf5; id "Hard-Talkchess-2020.019" ;
1r4k1/pb3p1p/r1p1p1p1/2p1P3/P1P2P2/1PB5/2K3PP/5R2 w - - bm a5; id "Hard-Talkchess-2020.020" ;
1r6/4k3/r2p2p1/2pR1p1p/2P1pP1P/pPK1P1P1/P7/1B6 b - - bm Rxb3+; id "Hard-Talkchess-2020.021" ;
1rb1qrk1/2b2pp1/p3pBn1/3pP1Pp/1ppP4/2P1QN2/PP3P1P/R2BR1K1 w - - bm Nh4; id "Hard-Talkchess-2020.023" ;
1rb1r1k1/2qn1pbp/pp1p2p1/2nP4/P1p1PP2/2N1BQNP/1PB3P1/R4R1K w - - bm e5; id "Hard-Talkchess-2020.025" ;
1rbq1r1k/7p/2np2p1/p2N1p2/R1B1PP1b/1PP1N3/8/3Q1K1R w - - bm Ra2; id "Hard-Talkchess-2020.028" ;
1rbq1rk1/1p2ppbn/p2p2p1/P1pP4/4P3/2PB1N2/2P3PP/R1B1QRK1 w - - bm e5; id "Hard-Talkchess-2020.029" ;
2R5/k1p1p1K1/P1p1Pp2/5P2/7P/pB6/2p5/2r5 w - - bm Rxc7+; id "Hard-Talkchess-2020.031" ;
2b1rk2/5p2/p1P5/2p2P2/2p5/7B/P7/2KR4 w - - bm f6; id "Hard-Talkchess-2020.034" ;
2b3r1/1p1p2pk/2nBp2p/2P1Ppq1/R7/4QBPP/5P2/5K2 w - - bm Qxg5; id "Hard-Talkchess-2020.035" ;
2bk2r1/5q2/1p2pP1Q/pP1pP1P1/P2P4/8/2RK4/8 w - - bm Kc1; id "Hard-Talkchess-2020.036" ;
2bqrr1k/p5b1/1p1p2pp/nPpBp3/P1P1N2P/3PN1P1/R4P1K/3Q1R2 w - - bm Nc3; id "Hard-Talkchess-2020.038" ;
2k2Br1/p6b/Pq1r4/1p2p1b1/1Ppp2p1/Q1P3N1/5RPP/R3N1K1 b - - bm Rf6; id "Hard-Talkchess-2020.039" ;
2q2r1k/p1p1b1pp/br1p1n2/2p1N1BP/Q1P1P3/8/PP1N1PP1/2KR3R w - - bm Ng6+; id "Hard-Talkchess-2020.043" ;
2r2bk1/pNq3p1/2Pp3p/1p1Prp2/1P2p1P1/6Q1/P4P1P/2RR2K1 w - - bm Qxe5; id "Hard-Talkchess-2020.046" ;
2r2r1k/qb3p1p/p2p1Np1/np1Pp1P1/2P5/3RP2P/5R2/4Q1K1 w - - bm Rf4; id "Hard-Talkchess-2020.047" ;
2r2rk1/1bpR1p2/1pq1pQp1/p3P2p/P1PR3P/5N2/2P2PPK/8 w - - bm Kg3; id "Hard-Talkchess-2020.049" ;
2r2rk1/2q2p1p/p1p1nPpQ/3p4/4p1B1/8/PPP3PP/R4R1K w - - bm Rf5; id "Hard-Talkchess-2020.050" ;
2r4r/3n1pk1/pq1p1bp1/3B4/1p2P1N1/7P/PP1Q1PK1/3RR3 w - - bm Bxf7; id "Hard-Talkchess-2020.052" ;
2r5/prkpR1p1/2p1ppK1/P1p1N1B1/P1P1P3/8/8/8 w - - bm Bf4; id "Hard-Talkchess-2020.053" ;
3B4/1r2p3/r2p1p2/bkp1P1p1/1p1P1PPp/p1P1K2P/PPB5/8 w - - bm Ba4+; id "Hard-Talkchess-2020.054" ;
3b2n1/1q3p1k/6pp/np2N3/2bBPN2/1pP4P/4QPP1/1B4K1 w - - bm Nexg6; id "Hard-Talkchess-2020.056" ;
3k4/4pp2/n2n4/5BN1/3N4/b7/4K3/8 w - - bm Nxf7+; id "Hard-Talkchess-2020.058" ;
3kB3/5K2/7p/3p4/3pn3/4NN2/8/1b4B1 w - - bm Nf5; id "Hard-Talkchess-2020.059" ;
3q1r1k/6rp/3p4/P2Pbp1Q/N3Pp1n/2P5/P1B2RPP/R6K b - - bm f3; id "Hard-Talkchess-2020.061" ;
3r1rk1/pbq1bp1p/1n1Rp1p1/2p1P1N1/4N2P/1P3Q2/PB3PP1/K6R w - - bm h5; id "Hard-Talkchess-2020.063" ;
3rqbk1/2p3p1/b6p/Q1p5/2N1PP2/1P1P2P1/2P4P/5R1K b - - bm Bc8; id "Hard-Talkchess-2020.065" ;
4B3/1Pb4p/8/4p1k1/3p1p2/5K2/2P5/8 b - - bm e4+; id "Hard-Talkchess-2020.066" ;
4K1k1/8/1p5p/1Pp3b1/8/1P3P2/P1B2P2/8 w - - bm f4; id "Hard-Talkchess-2020.067" ;
4K2k/1pQp3p/1R4p1/1P4P1/8/3P3P/1q3r2/8 w - - bm Qd8; id "Hard-Talkchess-2020.068" ;
4R3/P7/2bB2p1/r3pk2/2p2p1P/2P2P1K/6P1/8 w - - bm Rxe5+; id "Hard-Talkchess-2020.069" ;
4b1k1/P4pPp/1R3P1P/2r5/8/1P6/1K6/8 w - - bm a8=B; id "Hard-Talkchess-2020.070" ;
4b3/7p/4k3/B4pPP/5K2/P4P2/8/8 w - - bm g6; id "Hard-Talkchess-2020.072" ;
4bbk1/3nq2r/pr2p3/Np1p1p1p/1PpP1Pp1/2P1P1P1/PQ1NB1PR/2K4R b - - bm e5; id "Hard-Talkchess-2020.073" ;
4k1br/1K1p1n1r/2p2pN1/P2p1N2/2P3pP/5B2/P2P4/8 w - - bm Kc8; id "Hard-Talkchess-2020.074" ;
4q1kr/p6p/1prQPppB/4n3/4P3/2P5/PP2B2P/R5K1 w - - bm Qxe5; id "Hard-Talkchess-2020.078" ;
4r1rk/p3qpp1/1pnp1n1p/5P2/P1PPP3/4Q2P/2BB2R1/6RK w - - bm Rxg7; id "Hard-Talkchess-2020.081" ;
5k2/8/pppppppp/8/PPPPPPPP/8/8/5K2 w - - bm d5; id "Hard-Talkchess-2020.083" ;
5nr1/2Pp2pk/3Pp1p1/4P1P1/6P1/5K2/8/7n w - - bm c8=N; id "Hard-Talkchess-2020.087" ;
5rk1/pp3p1p/7b/2pR4/8/2P4P/P1PNr1P1/2K4R b - - bm Rxd2; id "Hard-Talkchess-2020.089" ;
6R1/8/2pB3k/2P4p/5p1q/5P2/4P1K1/8 w - - bm Bf8+; id "Hard-Talkchess-2020.090" ;
6br/1KNp1n1r/2p2p2/P1ppRP2/1kP3pP/3PBB2/PN1P4/8 w - - bm Bxc5+; id "Hard-Talkchess-2020.091" ;
6k1/1qr1p2p/ppN5/3p1N2/6p1/1P1P2Pp/PP2PP1P/2RK4 w - - bm Ncxe7+; id "Hard-Talkchess-2020.093" ;
6k1/8/1pK4p/bPp5/8/1P6/P1B2P2/8 w - - bm b4; id "Hard-Talkchess-2020.094" ;
6k1/p7/8/4B3/Pp3p1P/qP5P/P1Rb2K1/8 w - - bm Kf3; id "Hard-Talkchess-2020.095" ;
6k1/ppn2p2/8/2P2P1p/1P2K3/2N5/P7/8 w - - bm Nd5; id "Hard-Talkchess-2020.096" ;
6r1/6r1/2p1k1pp/p1pbP2q/Pp1p1PpP/1P1P2NR/1KPQ3R/8 b - - bm Qf5; id "Hard-Talkchess-2020.097" ;
7k/4PBNp/7P/2p5/2P5/2rq2Pp/1P3P1K/8 b - - bm Qxg3+; id "Hard-Talkchess-2020.099" ;
7k/pp2Np1p/2p2P1N/5pP1/7K/P4n2/1q3Q2/5n2 w - - bm Kh5; id "Hard-Talkchess-2020.101" ;
8/1B3b1p/7P/p2p4/P2pp1kp/Q7/1N1Pq2P/7K w - - bm Qh3+; id "Hard-Talkchess-2020.103" ;
8/1p1pNpbk/1q1P4/pP2p2K/P3N3/4P1P1/3P4/8 w - - bm Nc8; id "Hard-Talkchess-2020.105" ;
8/2N4r/1p3pkp/8/5K1p/2P4N/P3Bn2/8 w - - bm Bh5+; id "Hard-Talkchess-2020.108" ;
8/2p1q3/p3P3/2P4p/1PBP2kP/2N3P1/7K/8 w - - bm Be2+; id "Hard-Talkchess-2020.109" ;
8/2pN1k2/p4p1p/Pn1R4/3b4/6Pp/1P3K1P/8 w - - bm Ke1; id "Hard-Talkchess-2020.110" ;
8/3P3k/n2K3p/2p3n1/1b4N1/2p1p1P1/8/3B4 w - - bm Nf6+; id "Hard-Talkchess-2020.113" ;
8/3ppp1p/3P4/4N3/8/3n1pKp/8/7k w - - bm Nxd3; id "Hard-Talkchess-2020.114" ;
8/4nk2/1p3p2/1r1p2pp/1P1R1N1P/6P1/3KPP2/8 w - - bm Nd3; id "Hard-Talkchess-2020.116" ;
8/4nk2/1p3p2/2rp2pp/1P1R1N1P/6P1/3KPP2/8 b - - am Rb5?; id "Hard-Talkchess-2020.117" ;
8/5p2/N1p3p1/3pP1P1/7P/2kP4/Pb6/7K w - - bm h5; id "Hard-Talkchess-2020.119" ;
8/6pp/1K6/N5P1/3N4/8/npn1P3/k7 w - - bm Nab3+; id "Hard-Talkchess-2020.121" ;
8/8/4kpp1/3p1b2/p6P/2B5/6P1/6K1 b - - bm Bh3; id "Hard-Talkchess-2020.122" ;
8/8/p2k1p2/1p1p3p/1P1P3p/P3NPP1/5K2/1b6 w - - bm Ng2; id "Hard-Talkchess-2020.125" ;
8/bp4Pk/4KB2/R6p/2pNp1P1/p7/3p1Pnq/2r5 w - - bm Nc6; id "Hard-Talkchess-2020.126" ;
8/p3N3/1n3N2/2n3pP/pkP5/8/3P4/K7 b - - bm Nxc4; id "Hard-Talkchess-2020.127" ;
8/p7/qkpN1p2/8/1B1P4/PP3K2/5P2/8 w - - bm Ba5+; id "Hard-Talkchess-2020.129" ;
N7/8/2KQ2rp/6k1/3p3p/2p4P/4PP2/5N2 w - - bm f4+; id "Hard-Talkchess-2020.130" ;
Nq3n1k/8/P1p2Npp/2Kp3R/pp6/n3p3/8/4Q3 w - - bm Nc7; id "Hard-Talkchess-2020.131" ;
br1r2k1/5pp1/R6p/2pN4/P1P1q3/2P1p1P1/P3P2P/3RQ1K1 b - - bm Qxc4; id "Hard-Talkchess-2020.132" ;
k7/p1pR4/1p3p2/2P2rpB/PbP4p/2N1p2p/KP6/8 w - - bm Bf3+; id "Hard-Talkchess-2020.133" ;
n1QBq1k1/5p1p/5KP1/p7/8/8/8/8 w - - bm Bc7; id "Hard-Talkchess-2020.135" ;
q7/7R/k7/1p6/1p6/1P2B3/7K/8 w - - bm Bd4; id "Hard-Talkchess-2020.140" ;
r1b1qk1r/pn3pp1/1p2p3/3pP1Bp/1bPN4/4Q1R1/P2N1PP1/R5K1 w - - bm Bf6; id "Hard-Talkchess-2020.144" ;
r1b1qr1k/2p3pp/4p3/1pb1PpN1/pn3N1P/8/PPP1QPP1/2KR3R w - - bm Rd8; id "Hard-Talkchess-2020.146" ;
r1b1qr1k/2p3pp/4p3/1pb1PpN1/pn3N1P/P7/1PP1QPP1/2KR3R w - - bm Rd8; id "Hard-Talkchess-2020.147" ;
r1b2rk1/2q1bppp/p2pp3/2n3PQ/1p1BP3/1BN5/PPP2P1P/2KR2R1 w - - bm Bf6; id "Hard-Talkchess-2020.150" ;
r1b2rk1/pp3ppp/1n2p3/3pP3/2P2B2/b1PB1qP1/P1Q1NP1P/1K1R3R w - - bm Nd4; id "Hard-Talkchess-2020.153" ;
r1b3k1/ppp1q1pp/2n1p3/3pP2P/8/2NB2Q1/PPP3P1/2K2R2 w - - bm Bg6; id "Hard-Talkchess-2020.155" ;
r1b3k1/ppppn1pp/4n1q1/8/5P2/2N1B3/PPP3QP/3R1RK1 w - - bm f5; id "Hard-Talkchess-2020.156" ;
r1bq1b1r/pp1pp1pp/2n1k3/8/4nQ2/N1p1BN1P/PP3PP1/R3K2R w KQ - bm Nb5; id "Hard-Talkchess-2020.158" ;
r1bq1rk1/1p1nbppp/p3p3/2ppP3/5B1P/2PBP3/PP1N1PP1/R2QK2R w - - bm Bxh7+; id "Hard-Talkchess-2020.159" ;
r1bq1rk1/pp2b2p/2p1pppQ/8/1n1PN2P/3B1N2/PPP2PP1/2KR3R w - - bm Neg5; id "Hard-Talkchess-2020.160" ;
r1br2k1/1p1nqppp/p1p1pn2/3p4/1bPP4/PPN1PN2/2BB1PPP/R2Q1RK1 b - - am Bxa3; id "Hard-Talkchess-2020.164" ;
r1n2N1k/2n2K1p/3pp3/5Pp1/b5R1/8/1PPP4/8 w - - bm Ng6+; id "Hard-Talkchess-2020.166" ;
r1qn1rk1/p1pp1ppp/1p2p2b/1P2P3/P7/R2B1N2/1P4PP/3Q1R1K w - - bm Bxh7+; id "Hard-Talkchess-2020.169" ;
r2q1r2/1b2bpkp/n3p1p1/2ppP1P1/p6R/1PN1BQR1/NPP2P1P/4K3 w - - bm Qf6+; id "Hard-Talkchess-2020.170" ;
r2q1r2/1b2bpkp/p3p1p1/2ppP1P1/7R/1PN1BQR1/1PP2P1P/4K3 w - - bm Qf6+; id "Hard-Talkchess-2020.171" ;
r2q1rk1/ppp2p2/3p1np1/4pNQ1/4P1pP/1PPP4/1P3P2/R3K1R1 w Q - bm Qh6; id "Hard-Talkchess-2020.173" ;
r2qrbk1/1b3p2/3p2pB/1p1P1N2/1np1P3/5NRP/1P3PP1/1B1Qn1K1 w - - bm N3h4; id "Hard-Talkchess-2020.177" ;
r2r2k1/pqp1bppp/1pn1pn2/8/2NP1B2/2N1P1P1/PPQ2P1P/R4RK1 b - - bm Rxd4; id "Hard-Talkchess-2020.179" ;
r3kb1r/4Pp2/pn3P2/1pp3B1/2p5/2N3P1/PP3P1P/3RKB1b w - - bm h4; id "Hard-Talkchess-2020.181" ;
r3r1k1/1b1n1pbp/pq1p2p1/1pp1P3/3P1B2/nP1B1NNP/P4PP1/R2QR1K1 w - - bm Nh5; id "Hard-Talkchess-2020.182" ;
r3r1k1/1b1nbp1p/1qn1p3/1p1pPp2/p2P4/P2BNN2/1P1Q1BPP/R4RK1 w - - bm Ng4; id "Hard-Talkchess-2020.183" ;
r3r1k1/pp1q1p2/2p2npb/PPPp1bnp/3PpN2/2N1P1PP/1R1B1PBK/3Q1R2 b - - bm Bg4; id "Hard-Talkchess-2020.184" ;
r3r1k1/pp1q1p2/2p2npb/PPPp4/3Pp3/2NNPpP1/1R1B1P1K/3Q3R b - - bm Kg7; id "Hard-Talkchess-2020.185" ;
r3r2k/1pq2pp1/4b2p/3pP3/p1nB3P/P2B1RQ1/1PP3P1/3R3K w - - bm Rf6; id "Hard-Talkchess-2020.186" ;
r4r1k/1p1n1ppp/1qb1p3/2b1P3/2B3Q1/p1NR4/PPP3PP/1KB1R3 w - - bm Rh3; id "Hard-Talkchess-2020.188" ;
r4rk1/1bq1bppp/p1npp3/2nB1NP1/1p2P3/2N1B3/PPP1QP1P/2KR2R1 w - - bm Qh5; id "Hard-Talkchess-2020.190" ;
r4rk1/4bppp/bq2p3/npnpP3/p2B1P2/P1PB1N2/1P2QNPP/R4RK1 w - - bm Bxh7+; id "Hard-Talkchess-2020.191" ;
r4rk1/pb3pp1/1p1qpR2/2ppN3/3P4/2P4P/PP1pQ1P1/3R2K1 w - - bm Qxd2 Ng4; id "Hard-Talkchess-2020.192" ;
r5k1/1b2bppp/1n2p3/1P6/2qPP3/r1p2N2/1R2QPPP/1BR1B1K1 b - - bm cxb2; id "Hard-Talkchess-2020.193" ;
r5k1/6b1/2Nq4/2pP1p2/p1P1pPr1/Pp6/3R2PQ/1K3R2 b - - bm e3; id "Hard-Talkchess-2020.194" ;
r5k1/p1pb2bp/3p3r/P1pPp1p1/2B1Pq2/1R2QPp1/1P4PP/5RBK b - - bm Rxh2+; id "Hard-Talkchess-2020.195" ;
r5rk/1bq1bpp1/1p1ppn1p/pP5P/2P1P3/P1N2P2/1B1Q1P2/1K1R1BR1 w - - bm Nd5; id "Hard-Talkchess-2020.196" ;
r7/1QP1N1Kp/pn2P1b1/Nnk2p2/7p/p4BP1/1rPPp2q/8 w - - bm Nd5; id "Hard-Talkchess-2020.198" ;
r7/1q1r1p1k/3p1Qpp/pbpP4/1nB1P1P1/1P3NBP/5P1K/4R3 w - - bm Bf4; id "Hard-Talkchess-2020.200" ;
rn1qr1k1/1p2bppp/p3p3/3pP3/P2P1B2/2RB1Q1P/1P3PP1/R5K1 w - - bm Bxh7+; id "Hard-Talkchess-2020.201" ;
rn2kr2/1pp1b1p1/4p3/1Pp1P2p/p1P1NP1P/P7/1B4P1/3RR1K1 w - - bm g3; id "Hard-Talkchess-2020.203" ;
rn3r1k/pn1p1ppq/bpp4p/7P/4N1Q1/6P1/PP3PB1/R1B1R1K1 w - - bm Bg5; id "Hard-Talkchess-2020.204" ;
rn3r2/p2qp1k1/2pp1pp1/7n/1p1PP1b1/2N2N2/PPPQB3/2KR3R w - - bm Rdg1; id "Hard-Talkchess-2020.205" ;
rnb2r2/3pppkp/p5p1/qPpQ4/P1P1n3/4PN2/4KPPP/RN3B1R b - - bm Nd6; id "Hard-Talkchess-2020.207" ;
rnb2rk1/1pq1bppp/p3p3/2npP1P1/3N1P2/2NBB3/PPP4P/R2QK2R w KQ - bm Bxh7+; id "Hard-Talkchess-2020.208" ;
rnbq1rk1/p3bp2/2p1p1p1/1p1nP1P1/2pP1P2/2N5/PP4P1/RBBQK2R w KQ - bm Bd2; id "Hard-Talkchess-2020.209" ;
rnbq3r/pppp4/3b1pkp/5p2/2BP4/4P3/PPP2PPP/RN1QK2R w KQ - bm Qh5+; id "Hard-Talkchess-2020.210" ;
rnbqk2r/p4p2/2p1p3/1p2N1pp/PbpPn2P/2N1P1B1/1P3PP1/R2QKB1R w KQkq - bm Qf3; id "Hard-Talkchess-2020.211" ;
rqn2rk1/1p2ppb1/p1b3pp/2R1P1N1/8/4BB1Q/3R1PPP/6K1 w - - bm Nxf7; id "Hard-Talkchess-2020.213" ;
Still doubts about 4 positions :

Code: Select all

 10) Rd6xf6 -> A lot of moves are winning. But only Rxf6 gives a forseable mate. This position will probably stay.
 15) h2-h4  -> Some other moves are close in eval : Bd2, Be3, h3
150) Bd4-f6 -> Qh6 is very close in eval
204) Bc1-g5 -> the score of b4 is high (> 2.5) after a long analyse 
Do you have the analysis data for top1/top2 move and score for those positions? I would like to extract the positions with the following criteria.
1. If top1 score >= 150cp and top2 score <= 25cp, save this position. There is only one winning move.
2. If top1 score >= -25cp and top2 score <= -150cp, save this position. There is only one move that can potentially make a draw or win.

Dann Corbit
Posts: 11989
Joined: Wed Mar 08, 2006 7:57 pm
Location: Redmond, WA USA
Contact:

Re: Questionable positions in the Hard-Talkchess-2020 set

Post by Dann Corbit » Wed Jan 20, 2021 7:03 pm

Code: Select all

1q1r3k/3P1pp1/ppBR1n1p/4Q2P/P4P2/8/5PK1/8 w - -
aka ECM.825, MG.2988, die.002
ce acd pv
32722 54 Rxf6 gxf6 Qxf6+ Kg8 Qxh6 Rxd7 Qg5+ Kf8 h6 Qc8 Bxd7 Qb7+ Kh2 Qxd7 Qg7+ Ke7 Qe5+ Qe6 h7 Qxe5 fxe5 b5 h8=Q bxa4 Qf6+ Ke8 Qxa6 Kd7 Qd6+ Kc8 Qf8+ Kb7 Qxf7+ Ka6 e6 Kb6 e7 Kc5 e8=Q Kb4 Qe1+ Kc5 Qa5+ Kc6 Qfd5#
747 50 Qd4 Kg8 Rxf6 gxf6 Qxf6 Qc7 Qxh6 Rxd7 Qg5+ Kf8 Bxd7 Qb7+ Kg1 Qxd7 h6 Qd1+ Kg2 Qd4 f3 Qd2+ Kh3 Qd1 Qg7+ Ke8 Qg8+ Ke7 Qg2 Qd3 Qg5+ f6 Qg7+ Ke6 Kg3 Qd4 Qb7 Qg1+ Kh3 Qh1+ Kg4 Qxh6 Qxb6+ Kd5 Qb7+ Kd4 Qe4+ Kc5 Kf5 Qf8 Qe3+ Kc6 Qe6+ Kb7 Kg6 Qd8 f5 Kc7 Qxa6 Qe8+ K

1r3rk1/3bb1pp/1qn1p3/3pP3/3P1N2/2Q2N2/2P3PP/R1BR3K w - -
aka AlphaZero - Stockfish8
ce acd pv
166 58 h4 Rf7 Qe1 Nb4 Qd2 Nc6 Ba3 h6 g3 Be8 Kg2 Bxa3 Rxa3 Qb2 Rda1 Rxf4 gxf4 Bh5 Qc3 Bxf3+ Kxf3 Nxd4+ Kg4 Qxc2 Qxc2 Nxc2 Ra8 Rf8 Rxf8+ Kxf8 Ra8+ Kf7 Ra7+ Kf8 h5 Ne3+ Kh4 Nf5+ Kh3 Ne3 Rb7 Nf5 Kg4 Ne3+ Kf3 Nf5 Rd7 Ke8 Ra7 Kf8 Ra1 Ke7 Kf2 Nd4 Ra7+ Kf8 Rc7 Nf5 Rc1 Kf7 Rb1 Nd4 Rb6 Ke7 Rb7+ Kf8 Ra7 Nf5 Rc7 Ne7 Kg3 Nf5+ Kg4 Ne3+ Kf3 Nf5
90 31 Be3 Bb4 Qd3 Qb5 Qxb5 Rxb5 h4 Be7 Bd2 Rc8 Kh2 Rb7 Ra6 Kf7 Rda1 Nb8 R6a2 Nc6 Nd3 Rcc7 Rf1 Ra7 Rb2 Kg8 g4 Ra4 c3 Na5 Rb8+ Rc8 Rxc8+ Bxc8 Rb1 Ba6 Nf4 Kf7 Kg3 Nc4 Rb8 
192 30 Qe1 Rf5 Qg3 Na7 Rf1 Nb5 Qg4 Rbf8 Nh5 g6 Ng3 Rxf3 Rxf3 Qxd4 Rxf8+ Bxf8 Qxd4 Nxd4 Ra7 Bb5 Rc7 Bg7 Bf4 h6 h4 Kf8 c3 Nc6 Ne2 g5 hxg5 hxg5 Bg3 Bxe2 Rxc6 Kf7 Kg1 Bc4 Rc7+ Kg6 Re7 Bd3 Rxe6+ Kf5 Re7 

r1b2rk1/2q1bppp/p2pp3/2n3PQ/1p1BP3/1BN5/PPP2P1P/2KR2R1 w - -
aka Hard-Talkchess-2020.150, Nightmare II-18 - Koenigsangriff, T1.2747, dorszcz.0483, hard2016.108
ce acd pv
162 44 Bf6
135 43 Qh6 e5 Nd5 gxh6 Nxc7 Ra7 Bxc5 dxc5 Nd5 hxg5 Nxe7+ Rxe7 Rxg5+ Kh8 Rd6 Ree8 Rf6 Be6 Bd5 c4 Kd2 Rg8 Rxe5 Bxd5 Rxe8 Rxe8 exd5 Re5 Rxa6 c3+ bxc3 Rxd5+ Ke3 bxc3 Ra3 Kg7 Rxc3 Ra5 a3 Ra4 Ke2 h5 Rg3+ Kf6 Rf3+ Ke7 Kd2 Ke6 h3 f5 Kc1 f4 Kb2 Ke5 Kb3 

rn3r1k/pn1p1ppq/bpp4p/7P/4N1Q1/6P1/PP3PB1/R1B1R1K1 w - -
aka Hard.xxx, TI.134, dorszcz.1213
ce acd pv
151 52 Bg5
126 45 b4 d5 Bb2 dxe4 Bxe4 Qg8 Bc2 c5 Be4 Nc6 Bxc6 Rad8 Re7 Nd6 Rd1 Bc8 Qf4 Nf5 Rxd8 Rxd8 Be4 Nd4 Qxf7 Qxf7 Rxf7 Bd7 f4 a5 bxc5 bxc5 Kf2 a4 Bg6 Be6 Rc7 Rc8 Ra7 Bxa2 Rxa4 Bb3 Ra7 Be6 Ke3 Rd8 Rc7 Rc8 Re7 Rd8 Bc3 Bg4 Rc7 Rc8 Ra7 Rd8 Bxd4 cxd4+ Kd3 
39 39 Nc3 Nc5 b4 Nd3 Re7 d5 b5 Bc8 Rxf7 Rxf7 Qxc8+ Qg8 Qxg8+ Kxg8 Be3 Rd7 Rd1 Nb2 Rd4 Nc4 Bf4 a6 bxc6 Nxc6 Rxd5 Rda7 Rd1 N4e5 Bxe5 Nxe5 Bxa8 Rxa8 Rd6 Rc8 Nd5 Rc2 a4 Rd2 Ne7+ Kf7 Rxd2 Nf3+ Kg2 Nxd2 Nd5 Ne4 Kf3 Nf6 Nc7 Nxh5 Nxa6 Ke6 
Taking ideas is not a vice, it is a virtue. We have another word for this. It is called learning.
But sharing ideas is an even greater virtue. We have another word for this. It is called teaching.

Dann Corbit
Posts: 11989
Joined: Wed Mar 08, 2006 7:57 pm
Location: Redmond, WA USA
Contact:

Re: Questionable positions in the Hard-Talkchess-2020 set

Post by Dann Corbit » Wed Jan 20, 2021 7:05 pm

I think that if good answers are wanted, it will be necessary to do a multipv-3 run to depth 50.
My machine will be tied up for a week, so I cannot do it.
Taking ideas is not a vice, it is a virtue. We have another word for this. It is called learning.
But sharing ideas is an even greater virtue. We have another word for this. It is called teaching.

Vinvin
Posts: 4911
Joined: Thu Mar 09, 2006 8:40 am
Full name: Vincent Lejeune

Re: Questionable positions in the Hard-Talkchess-2020 set

Post by Vinvin » Thu Jan 21, 2021 12:14 am

Ferdy wrote:
Wed Jan 20, 2021 5:44 pm
Vinvin wrote:
Mon Jan 18, 2021 2:18 am
Revision 2021 to the Hard-Talkchess-2020 set (draft) :
...
Still doubts about 4 positions :

Code: Select all

 10) Rd6xf6 -> A lot of moves are winning. But only Rxf6 gives a forseable mate. This position will probably stay.
 15) h2-h4  -> Some other moves are close in eval : Bd2, Be3, h3
150) Bd4-f6 -> Qh6 is very close in eval
204) Bc1-g5 -> the score of b4 is high (> 2.5) after a long analyse 
Do you have the analysis data for top1/top2 move and score for those positions? I would like to extract the positions with the following criteria.
1. If top1 score >= 150cp and top2 score <= 25cp, save this position. There is only one winning move.
2. If top1 score >= -25cp and top2 score <= -150cp, save this position. There is only one move that can potentially make a draw or win.
My criteria are close to : if (1st move > 300) and (2nd move < 200), I hold it.
But the eval depends on engines and time of analyze ...

Ferdy
Posts: 4527
Joined: Sun Aug 10, 2008 1:15 pm
Location: Philippines

Re: Questionable positions in the Hard-Talkchess-2020 set

Post by Ferdy » Thu Jan 21, 2021 12:33 am

Vinvin wrote:
Thu Jan 21, 2021 12:14 am
Ferdy wrote:
Wed Jan 20, 2021 5:44 pm
Vinvin wrote:
Mon Jan 18, 2021 2:18 am
Revision 2021 to the Hard-Talkchess-2020 set (draft) :
...
Still doubts about 4 positions :

Code: Select all

 10) Rd6xf6 -> A lot of moves are winning. But only Rxf6 gives a forseable mate. This position will probably stay.
 15) h2-h4  -> Some other moves are close in eval : Bd2, Be3, h3
150) Bd4-f6 -> Qh6 is very close in eval
204) Bc1-g5 -> the score of b4 is high (> 2.5) after a long analyse 
Do you have the analysis data for top1/top2 move and score for those positions? I would like to extract the positions with the following criteria.
1. If top1 score >= 150cp and top2 score <= 25cp, save this position. There is only one winning move.
2. If top1 score >= -25cp and top2 score <= -150cp, save this position. There is only one move that can potentially make a draw or win.
My criteria are close to : if (1st move > 300) and (2nd move < 200), I hold it.
But the eval depends on engines and time of analyze ...
Thanks, so I just need to find out the magnitude of the top2 score.

Aquarium has an exclude move feature.

1B1K1k2/4N2p/3pP1pP/6p1/p7/3N2b1/2r2p2/8 w - - bm Nc6; id "Hard-Talkchess-2020.001" ;
Excluding Nc6, its best move is: Nxg6 {-12/70} - Stockfish 2020-12-25. So this meets my criteria.


Vinvin
Posts: 4911
Joined: Thu Mar 09, 2006 8:40 am
Full name: Vincent Lejeune

Re: Questionable positions in the Hard-Talkchess-2020 set

Post by Vinvin » Thu Jan 21, 2021 11:10 pm

Vinvin wrote:
Mon Jan 18, 2021 2:18 am
Revision 2021 to the Hard-Talkchess-2020 set (draft) :

I deleted : too easy positions, bad positions, too hard positions.
It still have doubt about 4 positions. See at bottom.
128 positions left in the set (until now) :
...

Still doubts about 4 positions :

Code: Select all

 10) Rd6xf6 -> A lot of moves are winning. But only Rxf6 gives a forseable mate. This position will probably stay.
 15) h2-h4  -> Some other moves are close in eval : Bd2, Be3, h3
150) Bd4-f6 -> Qh6 is very close in eval
204) Bc1-g5 -> the score of b4 is high (> 2.5) after a long analyse 
I Held only the first.
125 positions still now (the cleaning is not finished) :

Code: Select all

1B1K1k2/4N2p/3pP1pP/6p1/p7/3N2b1/2r2p2/8 w - - bm Nc6; id "Hard-Talkchess-2020.001" ;
1B1r4/rp2npkp/2b1pbp1/1qp5/nPN1R3/1P1P1QP1/2P2PBP/5R1K w - - bm Qxf6+; id "Hard-Talkchess-2020.002" ;
1N4K1/1pp1p3/7k/2r3pP/p2pp1P1/P6N/8/2B5 w - - bm Nc6; id "Hard-Talkchess-2020.003" ;
1N6/2pp4/3k1P2/p7/1pK1P3/5P1P/3r2N1/8 w - - bm e5+; id "Hard-Talkchess-2020.004" ;
1k6/3p4/1B6/4Pp1p/1p5R/1p4p1/pP3n2/K6n w - - bm Rxh1; id "Hard-Talkchess-2020.007" ;
1nb3rr/2pp3p/p1k2P2/n1q1PN2/P1pR3N/b4PBp/1R2P3/1KQ5 w - - bm Rd6+; id "Hard-Talkchess-2020.008" ;
1q1r3k/3P1pp1/ppBR1n1p/4Q2P/P4P2/8/5PK1/8 w - - bm Rxf6; id "Hard-Talkchess-2020.010" ;
1r1q1rk1/1p2b2p/pN6/P1pP1bp1/5p2/2B2Q2/1P4PP/R4RK1 w - - bm g4; id "Hard-Talkchess-2020.011" ;
1r1rb1k1/5ppp/4p3/1p1p3P/1q2P2Q/pN3P2/PPP4P/1K1R2R1 w - - bm Rxg7+; id "Hard-Talkchess-2020.012" ;
1r2kb1r/p5p1/1np1p1N1/3pPnB1/1p1P2B1/qP6/2PQ1P1P/1K1R3R b k - bm Nc4; id "Hard-Talkchess-2020.013" ;
1r3r2/4bpkp/1qb1p1p1/3pP1P1/p1pP1Q2/PpP2N1R/1Pn1B2P/3RB2K w - - bm Qf6+; id "Hard-Talkchess-2020.014" ;
1r3rk1/3bbppp/1qn2P2/p2pP1P1/3P4/2PB1N2/6K1/qNBQ1R2 w - - bm Bxh7+; id "Hard-Talkchess-2020.016" ;
1r3rk1/5p1p/p2pb1p1/3Np1P1/2pRPR2/qP2Q1N1/P1PK3P/8 w - - bm Nf5; id "Hard-Talkchess-2020.019" ;
1r4k1/pb3p1p/r1p1p1p1/2p1P3/P1P2P2/1PB5/2K3PP/5R2 w - - bm a5; id "Hard-Talkchess-2020.020" ;
1r6/4k3/r2p2p1/2pR1p1p/2P1pP1P/pPK1P1P1/P7/1B6 b - - bm Rxb3+; id "Hard-Talkchess-2020.021" ;
1rb1qrk1/2b2pp1/p3pBn1/3pP1Pp/1ppP4/2P1QN2/PP3P1P/R2BR1K1 w - - bm Nh4; id "Hard-Talkchess-2020.023" ;
1rb1r1k1/2qn1pbp/pp1p2p1/2nP4/P1p1PP2/2N1BQNP/1PB3P1/R4R1K w - - bm e5; id "Hard-Talkchess-2020.025" ;
1rbq1r1k/7p/2np2p1/p2N1p2/R1B1PP1b/1PP1N3/8/3Q1K1R w - - bm Ra2; id "Hard-Talkchess-2020.028" ;
1rbq1rk1/1p2ppbn/p2p2p1/P1pP4/4P3/2PB1N2/2P3PP/R1B1QRK1 w - - bm e5; id "Hard-Talkchess-2020.029" ;
2R5/k1p1p1K1/P1p1Pp2/5P2/7P/pB6/2p5/2r5 w - - bm Rxc7+; id "Hard-Talkchess-2020.031" ;
2b1rk2/5p2/p1P5/2p2P2/2p5/7B/P7/2KR4 w - - bm f6; id "Hard-Talkchess-2020.034" ;
2b3r1/1p1p2pk/2nBp2p/2P1Ppq1/R7/4QBPP/5P2/5K2 w - - bm Qxg5; id "Hard-Talkchess-2020.035" ;
2bk2r1/5q2/1p2pP1Q/pP1pP1P1/P2P4/8/2RK4/8 w - - bm Kc1; id "Hard-Talkchess-2020.036" ;
2bqrr1k/p5b1/1p1p2pp/nPpBp3/P1P1N2P/3PN1P1/R4P1K/3Q1R2 w - - bm Nc3; id "Hard-Talkchess-2020.038" ;
2k2Br1/p6b/Pq1r4/1p2p1b1/1Ppp2p1/Q1P3N1/5RPP/R3N1K1 b - - bm Rf6; id "Hard-Talkchess-2020.039" ;
2q2r1k/p1p1b1pp/br1p1n2/2p1N1BP/Q1P1P3/8/PP1N1PP1/2KR3R w - - bm Ng6+; id "Hard-Talkchess-2020.043" ;
2r2bk1/pNq3p1/2Pp3p/1p1Prp2/1P2p1P1/6Q1/P4P1P/2RR2K1 w - - bm Qxe5; id "Hard-Talkchess-2020.046" ;
2r2r1k/qb3p1p/p2p1Np1/np1Pp1P1/2P5/3RP2P/5R2/4Q1K1 w - - bm Rf4; id "Hard-Talkchess-2020.047" ;
2r2rk1/1bpR1p2/1pq1pQp1/p3P2p/P1PR3P/5N2/2P2PPK/8 w - - bm Kg3; id "Hard-Talkchess-2020.049" ;
2r2rk1/2q2p1p/p1p1nPpQ/3p4/4p1B1/8/PPP3PP/R4R1K w - - bm Rf5; id "Hard-Talkchess-2020.050" ;
2r4r/3n1pk1/pq1p1bp1/3B4/1p2P1N1/7P/PP1Q1PK1/3RR3 w - - bm Bxf7; id "Hard-Talkchess-2020.052" ;
2r5/prkpR1p1/2p1ppK1/P1p1N1B1/P1P1P3/8/8/8 w - - bm Bf4; id "Hard-Talkchess-2020.053" ;
3B4/1r2p3/r2p1p2/bkp1P1p1/1p1P1PPp/p1P1K2P/PPB5/8 w - - bm Ba4+; id "Hard-Talkchess-2020.054" ;
3b2n1/1q3p1k/6pp/np2N3/2bBPN2/1pP4P/4QPP1/1B4K1 w - - bm Nexg6; id "Hard-Talkchess-2020.056" ;
3k4/4pp2/n2n4/5BN1/3N4/b7/4K3/8 w - - bm Nxf7+; id "Hard-Talkchess-2020.058" ;
3kB3/5K2/7p/3p4/3pn3/4NN2/8/1b4B1 w - - bm Nf5; id "Hard-Talkchess-2020.059" ;
3q1r1k/6rp/3p4/P2Pbp1Q/N3Pp1n/2P5/P1B2RPP/R6K b - - bm f3; id "Hard-Talkchess-2020.061" ;
3r1rk1/pbq1bp1p/1n1Rp1p1/2p1P1N1/4N2P/1P3Q2/PB3PP1/K6R w - - bm h5; id "Hard-Talkchess-2020.063" ;
3rqbk1/2p3p1/b6p/Q1p5/2N1PP2/1P1P2P1/2P4P/5R1K b - - bm Bc8; id "Hard-Talkchess-2020.065" ;
4B3/1Pb4p/8/4p1k1/3p1p2/5K2/2P5/8 b - - bm e4+; id "Hard-Talkchess-2020.066" ;
4K1k1/8/1p5p/1Pp3b1/8/1P3P2/P1B2P2/8 w - - bm f4; id "Hard-Talkchess-2020.067" ;
4K2k/1pQp3p/1R4p1/1P4P1/8/3P3P/1q3r2/8 w - - bm Qd8; id "Hard-Talkchess-2020.068" ;
4R3/P7/2bB2p1/r3pk2/2p2p1P/2P2P1K/6P1/8 w - - bm Rxe5+; id "Hard-Talkchess-2020.069" ;
4b1k1/P4pPp/1R3P1P/2r5/8/1P6/1K6/8 w - - bm a8=B; id "Hard-Talkchess-2020.070" ;
4b3/7p/4k3/B4pPP/5K2/P4P2/8/8 w - - bm g6; id "Hard-Talkchess-2020.072" ;
4bbk1/3nq2r/pr2p3/Np1p1p1p/1PpP1Pp1/2P1P1P1/PQ1NB1PR/2K4R b - - bm e5; id "Hard-Talkchess-2020.073" ;
4k1br/1K1p1n1r/2p2pN1/P2p1N2/2P3pP/5B2/P2P4/8 w - - bm Kc8; id "Hard-Talkchess-2020.074" ;
4q1kr/p6p/1prQPppB/4n3/4P3/2P5/PP2B2P/R5K1 w - - bm Qxe5; id "Hard-Talkchess-2020.078" ;
4r1rk/p3qpp1/1pnp1n1p/5P2/P1PPP3/4Q2P/2BB2R1/6RK w - - bm Rxg7; id "Hard-Talkchess-2020.081" ;
5k2/8/pppppppp/8/PPPPPPPP/8/8/5K2 w - - bm d5; id "Hard-Talkchess-2020.083" ;
5nr1/2Pp2pk/3Pp1p1/4P1P1/6P1/5K2/8/7n w - - bm c8=N; id "Hard-Talkchess-2020.087" ;
5rk1/pp3p1p/7b/2pR4/8/2P4P/P1PNr1P1/2K4R b - - bm Rxd2; id "Hard-Talkchess-2020.089" ;
6R1/8/2pB3k/2P4p/5p1q/5P2/4P1K1/8 w - - bm Bf8+; id "Hard-Talkchess-2020.090" ;
6br/1KNp1n1r/2p2p2/P1ppRP2/1kP3pP/3PBB2/PN1P4/8 w - - bm Bxc5+; id "Hard-Talkchess-2020.091" ;
6k1/1qr1p2p/ppN5/3p1N2/6p1/1P1P2Pp/PP2PP1P/2RK4 w - - bm Ncxe7+; id "Hard-Talkchess-2020.093" ;
6k1/8/1pK4p/bPp5/8/1P6/P1B2P2/8 w - - bm b4; id "Hard-Talkchess-2020.094" ;
6k1/p7/8/4B3/Pp3p1P/qP5P/P1Rb2K1/8 w - - bm Kf3; id "Hard-Talkchess-2020.095" ;
6k1/ppn2p2/8/2P2P1p/1P2K3/2N5/P7/8 w - - bm Nd5; id "Hard-Talkchess-2020.096" ;
6r1/6r1/2p1k1pp/p1pbP2q/Pp1p1PpP/1P1P2NR/1KPQ3R/8 b - - bm Qf5; id "Hard-Talkchess-2020.097" ;
7k/4PBNp/7P/2p5/2P5/2rq2Pp/1P3P1K/8 b - - bm Qxg3+; id "Hard-Talkchess-2020.099" ;
7k/pp2Np1p/2p2P1N/5pP1/7K/P4n2/1q3Q2/5n2 w - - bm Kh5; id "Hard-Talkchess-2020.101" ;
8/1B3b1p/7P/p2p4/P2pp1kp/Q7/1N1Pq2P/7K w - - bm Qh3+; id "Hard-Talkchess-2020.103" ;
8/1p1pNpbk/1q1P4/pP2p2K/P3N3/4P1P1/3P4/8 w - - bm Nc8; id "Hard-Talkchess-2020.105" ;
8/2N4r/1p3pkp/8/5K1p/2P4N/P3Bn2/8 w - - bm Bh5+; id "Hard-Talkchess-2020.108" ;
8/2p1q3/p3P3/2P4p/1PBP2kP/2N3P1/7K/8 w - - bm Be2+; id "Hard-Talkchess-2020.109" ;
8/2pN1k2/p4p1p/Pn1R4/3b4/6Pp/1P3K1P/8 w - - bm Ke1; id "Hard-Talkchess-2020.110" ;
8/3P3k/n2K3p/2p3n1/1b4N1/2p1p1P1/8/3B4 w - - bm Nf6+; id "Hard-Talkchess-2020.113" ;
8/3ppp1p/3P4/4N3/8/3n1pKp/8/7k w - - bm Nxd3; id "Hard-Talkchess-2020.114" ;
8/4nk2/1p3p2/1r1p2pp/1P1R1N1P/6P1/3KPP2/8 w - - bm Nd3; id "Hard-Talkchess-2020.116" ;
8/4nk2/1p3p2/2rp2pp/1P1R1N1P/6P1/3KPP2/8 b - - am Rb5?; id "Hard-Talkchess-2020.117" ;
8/5p2/N1p3p1/3pP1P1/7P/2kP4/Pb6/7K w - - bm h5; id "Hard-Talkchess-2020.119" ;
8/6pp/1K6/N5P1/3N4/8/npn1P3/k7 w - - bm Nab3+; id "Hard-Talkchess-2020.121" ;
8/8/4kpp1/3p1b2/p6P/2B5/6P1/6K1 b - - bm Bh3; id "Hard-Talkchess-2020.122" ;
8/8/p2k1p2/1p1p3p/1P1P3p/P3NPP1/5K2/1b6 w - - bm Ng2; id "Hard-Talkchess-2020.125" ;
8/bp4Pk/4KB2/R6p/2pNp1P1/p7/3p1Pnq/2r5 w - - bm Nc6; id "Hard-Talkchess-2020.126" ;
8/p3N3/1n3N2/2n3pP/pkP5/8/3P4/K7 b - - bm Nxc4; id "Hard-Talkchess-2020.127" ;
8/p7/qkpN1p2/8/1B1P4/PP3K2/5P2/8 w - - bm Ba5+; id "Hard-Talkchess-2020.129" ;
N7/8/2KQ2rp/6k1/3p3p/2p4P/4PP2/5N2 w - - bm f4+; id "Hard-Talkchess-2020.130" ;
Nq3n1k/8/P1p2Npp/2Kp3R/pp6/n3p3/8/4Q3 w - - bm Nc7; id "Hard-Talkchess-2020.131" ;
br1r2k1/5pp1/R6p/2pN4/P1P1q3/2P1p1P1/P3P2P/3RQ1K1 b - - bm Qxc4; id "Hard-Talkchess-2020.132" ;
k7/p1pR4/1p3p2/2P2rpB/PbP4p/2N1p2p/KP6/8 w - - bm Bf3+; id "Hard-Talkchess-2020.133" ;
n1QBq1k1/5p1p/5KP1/p7/8/8/8/8 w - - bm Bc7; id "Hard-Talkchess-2020.135" ;
q7/7R/k7/1p6/1p6/1P2B3/7K/8 w - - bm Bd4; id "Hard-Talkchess-2020.140" ;
r1b1qk1r/pn3pp1/1p2p3/3pP1Bp/1bPN4/4Q1R1/P2N1PP1/R5K1 w - - bm Bf6; id "Hard-Talkchess-2020.144" ;
r1b1qr1k/2p3pp/4p3/1pb1PpN1/pn3N1P/8/PPP1QPP1/2KR3R w - - bm Rd8; id "Hard-Talkchess-2020.146" ;
r1b1qr1k/2p3pp/4p3/1pb1PpN1/pn3N1P/P7/1PP1QPP1/2KR3R w - - bm Rd8; id "Hard-Talkchess-2020.147" ;
r1b2rk1/pp3ppp/1n2p3/3pP3/2P2B2/b1PB1qP1/P1Q1NP1P/1K1R3R w - - bm Nd4; id "Hard-Talkchess-2020.153" ;
r1b3k1/ppp1q1pp/2n1p3/3pP2P/8/2NB2Q1/PPP3P1/2K2R2 w - - bm Bg6; id "Hard-Talkchess-2020.155" ;
r1b3k1/ppppn1pp/4n1q1/8/5P2/2N1B3/PPP3QP/3R1RK1 w - - bm f5; id "Hard-Talkchess-2020.156" ;
r1bq1b1r/pp1pp1pp/2n1k3/8/4nQ2/N1p1BN1P/PP3PP1/R3K2R w KQ - bm Nb5; id "Hard-Talkchess-2020.158" ;
r1bq1rk1/1p1nbppp/p3p3/2ppP3/5B1P/2PBP3/PP1N1PP1/R2QK2R w - - bm Bxh7+; id "Hard-Talkchess-2020.159" ;
r1bq1rk1/pp2b2p/2p1pppQ/8/1n1PN2P/3B1N2/PPP2PP1/2KR3R w - - bm Neg5; id "Hard-Talkchess-2020.160" ;
r1br2k1/1p1nqppp/p1p1pn2/3p4/1bPP4/PPN1PN2/2BB1PPP/R2Q1RK1 b - - am Bxa3; id "Hard-Talkchess-2020.164" ;
r1n2N1k/2n2K1p/3pp3/5Pp1/b5R1/8/1PPP4/8 w - - bm Ng6+; id "Hard-Talkchess-2020.166" ;
r1qn1rk1/p1pp1ppp/1p2p2b/1P2P3/P7/R2B1N2/1P4PP/3Q1R1K w - - bm Bxh7+; id "Hard-Talkchess-2020.169" ;
r2q1r2/1b2bpkp/n3p1p1/2ppP1P1/p6R/1PN1BQR1/NPP2P1P/4K3 w - - bm Qf6+; id "Hard-Talkchess-2020.170" ;
r2q1r2/1b2bpkp/p3p1p1/2ppP1P1/7R/1PN1BQR1/1PP2P1P/4K3 w - - bm Qf6+; id "Hard-Talkchess-2020.171" ;
r2q1rk1/ppp2p2/3p1np1/4pNQ1/4P1pP/1PPP4/1P3P2/R3K1R1 w Q - bm Qh6; id "Hard-Talkchess-2020.173" ;
r2qrbk1/1b3p2/3p2pB/1p1P1N2/1np1P3/5NRP/1P3PP1/1B1Qn1K1 w - - bm N3h4; id "Hard-Talkchess-2020.177" ;
r2r2k1/pqp1bppp/1pn1pn2/8/2NP1B2/2N1P1P1/PPQ2P1P/R4RK1 b - - bm Rxd4; id "Hard-Talkchess-2020.179" ;
r3kb1r/4Pp2/pn3P2/1pp3B1/2p5/2N3P1/PP3P1P/3RKB1b w - - bm h4; id "Hard-Talkchess-2020.181" ;
r3r1k1/1b1n1pbp/pq1p2p1/1pp1P3/3P1B2/nP1B1NNP/P4PP1/R2QR1K1 w - - bm Nh5; id "Hard-Talkchess-2020.182" ;
r3r1k1/1b1nbp1p/1qn1p3/1p1pPp2/p2P4/P2BNN2/1P1Q1BPP/R4RK1 w - - bm Ng4; id "Hard-Talkchess-2020.183" ;
r3r1k1/pp1q1p2/2p2npb/PPPp1bnp/3PpN2/2N1P1PP/1R1B1PBK/3Q1R2 b - - bm Bg4; id "Hard-Talkchess-2020.184" ;
r3r1k1/pp1q1p2/2p2npb/PPPp4/3Pp3/2NNPpP1/1R1B1P1K/3Q3R b - - bm Kg7; id "Hard-Talkchess-2020.185" ;
r3r2k/1pq2pp1/4b2p/3pP3/p1nB3P/P2B1RQ1/1PP3P1/3R3K w - - bm Rf6; id "Hard-Talkchess-2020.186" ;
r4r1k/1p1n1ppp/1qb1p3/2b1P3/2B3Q1/p1NR4/PPP3PP/1KB1R3 w - - bm Rh3; id "Hard-Talkchess-2020.188" ;
r4rk1/1bq1bppp/p1npp3/2nB1NP1/1p2P3/2N1B3/PPP1QP1P/2KR2R1 w - - bm Qh5; id "Hard-Talkchess-2020.190" ;
r4rk1/4bppp/bq2p3/npnpP3/p2B1P2/P1PB1N2/1P2QNPP/R4RK1 w - - bm Bxh7+; id "Hard-Talkchess-2020.191" ;
r4rk1/pb3pp1/1p1qpR2/2ppN3/3P4/2P4P/PP1pQ1P1/3R2K1 w - - bm Qxd2 Ng4; id "Hard-Talkchess-2020.192" ;
r5k1/1b2bppp/1n2p3/1P6/2qPP3/r1p2N2/1R2QPPP/1BR1B1K1 b - - bm cxb2; id "Hard-Talkchess-2020.193" ;
r5k1/6b1/2Nq4/2pP1p2/p1P1pPr1/Pp6/3R2PQ/1K3R2 b - - bm e3; id "Hard-Talkchess-2020.194" ;
r5k1/p1pb2bp/3p3r/P1pPp1p1/2B1Pq2/1R2QPp1/1P4PP/5RBK b - - bm Rxh2+; id "Hard-Talkchess-2020.195" ;
r5rk/1bq1bpp1/1p1ppn1p/pP5P/2P1P3/P1N2P2/1B1Q1P2/1K1R1BR1 w - - bm Nd5; id "Hard-Talkchess-2020.196" ;
r7/1QP1N1Kp/pn2P1b1/Nnk2p2/7p/p4BP1/1rPPp2q/8 w - - bm Nd5; id "Hard-Talkchess-2020.198" ;
r7/1q1r1p1k/3p1Qpp/pbpP4/1nB1P1P1/1P3NBP/5P1K/4R3 w - - bm Bf4; id "Hard-Talkchess-2020.200" ;
rn1qr1k1/1p2bppp/p3p3/3pP3/P2P1B2/2RB1Q1P/1P3PP1/R5K1 w - - bm Bxh7+; id "Hard-Talkchess-2020.201" ;
rn2kr2/1pp1b1p1/4p3/1Pp1P2p/p1P1NP1P/P7/1B4P1/3RR1K1 w - - bm g3; id "Hard-Talkchess-2020.203" ;
rn3r2/p2qp1k1/2pp1pp1/7n/1p1PP1b1/2N2N2/PPPQB3/2KR3R w - - bm Rdg1; id "Hard-Talkchess-2020.205" ;
rnb2r2/3pppkp/p5p1/qPpQ4/P1P1n3/4PN2/4KPPP/RN3B1R b - - bm Nd6; id "Hard-Talkchess-2020.207" ;
rnb2rk1/1pq1bppp/p3p3/2npP1P1/3N1P2/2NBB3/PPP4P/R2QK2R w KQ - bm Bxh7+; id "Hard-Talkchess-2020.208" ;
rnbq1rk1/p3bp2/2p1p1p1/1p1nP1P1/2pP1P2/2N5/PP4P1/RBBQK2R w KQ - bm Bd2; id "Hard-Talkchess-2020.209" ;
rnbq3r/pppp4/3b1pkp/5p2/2BP4/4P3/PPP2PPP/RN1QK2R w KQ - bm Qh5+; id "Hard-Talkchess-2020.210" ;
rnbqk2r/p4p2/2p1p3/1p2N1pp/PbpPn2P/2N1P1B1/1P3PP1/R2QKB1R w KQkq - bm Qf3; id "Hard-Talkchess-2020.211" ;
rqn2rk1/1p2ppb1/p1b3pp/2R1P1N1/8/4BB1Q/3R1PPP/6K1 w - - bm Nxf7; id "Hard-Talkchess-2020.213" ;

Vinvin
Posts: 4911
Joined: Thu Mar 09, 2006 8:40 am
Full name: Vincent Lejeune

Re: Questionable positions in the Hard-Talkchess-2020 set

Post by Vinvin » Fri Jan 22, 2021 2:23 am

Vinvin wrote:
Thu Jan 21, 2021 11:10 pm
Revision 2021 to the Hard-Talkchess-2020 set (draft) :

I deleted : too easy positions, bad positions, too hard positions.
...
8 more, too easy, deleted. Still 117 :

Code: Select all

1B1K1k2/4N2p/3pP1pP/6p1/p7/3N2b1/2r2p2/8 w - - bm Nc6; id "Hard-Talkchess-2020.001" ;
1B1r4/rp2npkp/2b1pbp1/1qp5/nPN1R3/1P1P1QP1/2P2PBP/5R1K w - - bm Qxf6+; id "Hard-Talkchess-2020.002" ;
1N4K1/1pp1p3/7k/2r3pP/p2pp1P1/P6N/8/2B5 w - - bm Nc6; id "Hard-Talkchess-2020.003" ;
1k6/3p4/1B6/4Pp1p/1p5R/1p4p1/pP3n2/K6n w - - bm Rxh1; id "Hard-Talkchess-2020.007" ;
1nb3rr/2pp3p/p1k2P2/n1q1PN2/P1pR3N/b4PBp/1R2P3/1KQ5 w - - bm Rd6+; id "Hard-Talkchess-2020.008" ;
1q1r3k/3P1pp1/ppBR1n1p/4Q2P/P4P2/8/5PK1/8 w - - bm Rxf6; id "Hard-Talkchess-2020.010" ;
1r1q1rk1/1p2b2p/pN6/P1pP1bp1/5p2/2B2Q2/1P4PP/R4RK1 w - - bm g4; id "Hard-Talkchess-2020.011" ;
1r1rb1k1/5ppp/4p3/1p1p3P/1q2P2Q/pN3P2/PPP4P/1K1R2R1 w - - bm Rxg7+; id "Hard-Talkchess-2020.012" ;
1r2kb1r/p5p1/1np1p1N1/3pPnB1/1p1P2B1/qP6/2PQ1P1P/1K1R3R b k - bm Nc4; id "Hard-Talkchess-2020.013" ;
1r3r2/4bpkp/1qb1p1p1/3pP1P1/p1pP1Q2/PpP2N1R/1Pn1B2P/3RB2K w - - bm Qf6+; id "Hard-Talkchess-2020.014" ;
1r3rk1/3bbppp/1qn2P2/p2pP1P1/3P4/2PB1N2/6K1/qNBQ1R2 w - - bm Bxh7+; id "Hard-Talkchess-2020.016" ;
1r3rk1/5p1p/p2pb1p1/3Np1P1/2pRPR2/qP2Q1N1/P1PK3P/8 w - - bm Nf5; id "Hard-Talkchess-2020.019" ;
1r4k1/pb3p1p/r1p1p1p1/2p1P3/P1P2P2/1PB5/2K3PP/5R2 w - - bm a5; id "Hard-Talkchess-2020.020" ;
1r6/4k3/r2p2p1/2pR1p1p/2P1pP1P/pPK1P1P1/P7/1B6 b - - bm Rxb3+; id "Hard-Talkchess-2020.021" ;
1rb1qrk1/2b2pp1/p3pBn1/3pP1Pp/1ppP4/2P1QN2/PP3P1P/R2BR1K1 w - - bm Nh4; id "Hard-Talkchess-2020.023" ;
1rb1r1k1/2qn1pbp/pp1p2p1/2nP4/P1p1PP2/2N1BQNP/1PB3P1/R4R1K w - - bm e5; id "Hard-Talkchess-2020.025" ;
1rbq1r1k/7p/2np2p1/p2N1p2/R1B1PP1b/1PP1N3/8/3Q1K1R w - - bm Ra2; id "Hard-Talkchess-2020.028" ;
1rbq1rk1/1p2ppbn/p2p2p1/P1pP4/4P3/2PB1N2/2P3PP/R1B1QRK1 w - - bm e5; id "Hard-Talkchess-2020.029" ;
2R5/k1p1p1K1/P1p1Pp2/5P2/7P/pB6/2p5/2r5 w - - bm Rxc7+; id "Hard-Talkchess-2020.031" ;
2b1rk2/5p2/p1P5/2p2P2/2p5/7B/P7/2KR4 w - - bm f6; id "Hard-Talkchess-2020.034" ;
2b3r1/1p1p2pk/2nBp2p/2P1Ppq1/R7/4QBPP/5P2/5K2 w - - bm Qxg5; id "Hard-Talkchess-2020.035" ;
2bk2r1/5q2/1p2pP1Q/pP1pP1P1/P2P4/8/2RK4/8 w - - bm Kc1; id "Hard-Talkchess-2020.036" ;
2bqrr1k/p5b1/1p1p2pp/nPpBp3/P1P1N2P/3PN1P1/R4P1K/3Q1R2 w - - bm Nc3; id "Hard-Talkchess-2020.038" ;
2k2Br1/p6b/Pq1r4/1p2p1b1/1Ppp2p1/Q1P3N1/5RPP/R3N1K1 b - - bm Rf6; id "Hard-Talkchess-2020.039" ;
2q2r1k/p1p1b1pp/br1p1n2/2p1N1BP/Q1P1P3/8/PP1N1PP1/2KR3R w - - bm Ng6+; id "Hard-Talkchess-2020.043" ;
2r2bk1/pNq3p1/2Pp3p/1p1Prp2/1P2p1P1/6Q1/P4P1P/2RR2K1 w - - bm Qxe5; id "Hard-Talkchess-2020.046" ;
2r2r1k/qb3p1p/p2p1Np1/np1Pp1P1/2P5/3RP2P/5R2/4Q1K1 w - - bm Rf4; id "Hard-Talkchess-2020.047" ;
2r2rk1/1bpR1p2/1pq1pQp1/p3P2p/P1PR3P/5N2/2P2PPK/8 w - - bm Kg3; id "Hard-Talkchess-2020.049" ;
2r2rk1/2q2p1p/p1p1nPpQ/3p4/4p1B1/8/PPP3PP/R4R1K w - - bm Rf5; id "Hard-Talkchess-2020.050" ;
2r4r/3n1pk1/pq1p1bp1/3B4/1p2P1N1/7P/PP1Q1PK1/3RR3 w - - bm Bxf7; id "Hard-Talkchess-2020.052" ;
2r5/prkpR1p1/2p1ppK1/P1p1N1B1/P1P1P3/8/8/8 w - - bm Bf4; id "Hard-Talkchess-2020.053" ;
3B4/1r2p3/r2p1p2/bkp1P1p1/1p1P1PPp/p1P1K2P/PPB5/8 w - - bm Ba4+; id "Hard-Talkchess-2020.054" ;
3b2n1/1q3p1k/6pp/np2N3/2bBPN2/1pP4P/4QPP1/1B4K1 w - - bm Nexg6; id "Hard-Talkchess-2020.056" ;
3k4/4pp2/n2n4/5BN1/3N4/b7/4K3/8 w - - bm Nxf7+; id "Hard-Talkchess-2020.058" ;
3kB3/5K2/7p/3p4/3pn3/4NN2/8/1b4B1 w - - bm Nf5; id "Hard-Talkchess-2020.059" ;
3q1r1k/6rp/3p4/P2Pbp1Q/N3Pp1n/2P5/P1B2RPP/R6K b - - bm f3; id "Hard-Talkchess-2020.061" ;
3rqbk1/2p3p1/b6p/Q1p5/2N1PP2/1P1P2P1/2P4P/5R1K b - - bm Bc8; id "Hard-Talkchess-2020.065" ;
4B3/1Pb4p/8/4p1k1/3p1p2/5K2/2P5/8 b - - bm e4+; id "Hard-Talkchess-2020.066" ;
4K1k1/8/1p5p/1Pp3b1/8/1P3P2/P1B2P2/8 w - - bm f4; id "Hard-Talkchess-2020.067" ;
4K2k/1pQp3p/1R4p1/1P4P1/8/3P3P/1q3r2/8 w - - bm Qd8; id "Hard-Talkchess-2020.068" ;
4R3/P7/2bB2p1/r3pk2/2p2p1P/2P2P1K/6P1/8 w - - bm Rxe5+; id "Hard-Talkchess-2020.069" ;
4b1k1/P4pPp/1R3P1P/2r5/8/1P6/1K6/8 w - - bm a8=B; id "Hard-Talkchess-2020.070" ;
4b3/7p/4k3/B4pPP/5K2/P4P2/8/8 w - - bm g6; id "Hard-Talkchess-2020.072" ;
4bbk1/3nq2r/pr2p3/Np1p1p1p/1PpP1Pp1/2P1P1P1/PQ1NB1PR/2K4R b - - bm e5; id "Hard-Talkchess-2020.073" ;
4k1br/1K1p1n1r/2p2pN1/P2p1N2/2P3pP/5B2/P2P4/8 w - - bm Kc8; id "Hard-Talkchess-2020.074" ;
4q1kr/p6p/1prQPppB/4n3/4P3/2P5/PP2B2P/R5K1 w - - bm Qxe5; id "Hard-Talkchess-2020.078" ;
4r1rk/p3qpp1/1pnp1n1p/5P2/P1PPP3/4Q2P/2BB2R1/6RK w - - bm Rxg7; id "Hard-Talkchess-2020.081" ;
5k2/8/pppppppp/8/PPPPPPPP/8/8/5K2 w - - bm d5; id "Hard-Talkchess-2020.083" ;
5nr1/2Pp2pk/3Pp1p1/4P1P1/6P1/5K2/8/7n w - - bm c8=N; id "Hard-Talkchess-2020.087" ;
5rk1/pp3p1p/7b/2pR4/8/2P4P/P1PNr1P1/2K4R b - - bm Rxd2; id "Hard-Talkchess-2020.089" ;
6R1/8/2pB3k/2P4p/5p1q/5P2/4P1K1/8 w - - bm Bf8+; id "Hard-Talkchess-2020.090" ;
6br/1KNp1n1r/2p2p2/P1ppRP2/1kP3pP/3PBB2/PN1P4/8 w - - bm Bxc5+; id "Hard-Talkchess-2020.091" ;
6k1/1qr1p2p/ppN5/3p1N2/6p1/1P1P2Pp/PP2PP1P/2RK4 w - - bm Ncxe7+; id "Hard-Talkchess-2020.093" ;
6k1/8/1pK4p/bPp5/8/1P6/P1B2P2/8 w - - bm b4; id "Hard-Talkchess-2020.094" ;
6k1/p7/8/4B3/Pp3p1P/qP5P/P1Rb2K1/8 w - - bm Kf3; id "Hard-Talkchess-2020.095" ;
6k1/ppn2p2/8/2P2P1p/1P2K3/2N5/P7/8 w - - bm Nd5; id "Hard-Talkchess-2020.096" ;
6r1/6r1/2p1k1pp/p1pbP2q/Pp1p1PpP/1P1P2NR/1KPQ3R/8 b - - bm Qf5; id "Hard-Talkchess-2020.097" ;
7k/4PBNp/7P/2p5/2P5/2rq2Pp/1P3P1K/8 b - - bm Qxg3+; id "Hard-Talkchess-2020.099" ;
7k/pp2Np1p/2p2P1N/5pP1/7K/P4n2/1q3Q2/5n2 w - - bm Kh5; id "Hard-Talkchess-2020.101" ;
8/1B3b1p/7P/p2p4/P2pp1kp/Q7/1N1Pq2P/7K w - - bm Qh3+; id "Hard-Talkchess-2020.103" ;
8/1p1pNpbk/1q1P4/pP2p2K/P3N3/4P1P1/3P4/8 w - - bm Nc8; id "Hard-Talkchess-2020.105" ;
8/2N4r/1p3pkp/8/5K1p/2P4N/P3Bn2/8 w - - bm Bh5+; id "Hard-Talkchess-2020.108" ;
8/2p1q3/p3P3/2P4p/1PBP2kP/2N3P1/7K/8 w - - bm Be2+; id "Hard-Talkchess-2020.109" ;
8/2pN1k2/p4p1p/Pn1R4/3b4/6Pp/1P3K1P/8 w - - bm Ke1; id "Hard-Talkchess-2020.110" ;
8/3P3k/n2K3p/2p3n1/1b4N1/2p1p1P1/8/3B4 w - - bm Nf6+; id "Hard-Talkchess-2020.113" ;
8/3ppp1p/3P4/4N3/8/3n1pKp/8/7k w - - bm Nxd3; id "Hard-Talkchess-2020.114" ;
8/4nk2/1p3p2/1r1p2pp/1P1R1N1P/6P1/3KPP2/8 w - - bm Nd3; id "Hard-Talkchess-2020.116" ;
8/4nk2/1p3p2/2rp2pp/1P1R1N1P/6P1/3KPP2/8 b - - am Rb5?; id "Hard-Talkchess-2020.117" ;
8/5p2/N1p3p1/3pP1P1/7P/2kP4/Pb6/7K w - - bm h5; id "Hard-Talkchess-2020.119" ;
8/6pp/1K6/N5P1/3N4/8/npn1P3/k7 w - - bm Nab3+; id "Hard-Talkchess-2020.121" ;
8/8/4kpp1/3p1b2/p6P/2B5/6P1/6K1 b - - bm Bh3; id "Hard-Talkchess-2020.122" ;
8/8/p2k1p2/1p1p3p/1P1P3p/P3NPP1/5K2/1b6 w - - bm Ng2; id "Hard-Talkchess-2020.125" ;
8/bp4Pk/4KB2/R6p/2pNp1P1/p7/3p1Pnq/2r5 w - - bm Nc6; id "Hard-Talkchess-2020.126" ;
8/p3N3/1n3N2/2n3pP/pkP5/8/3P4/K7 b - - bm Nxc4; id "Hard-Talkchess-2020.127" ;
8/p7/qkpN1p2/8/1B1P4/PP3K2/5P2/8 w - - bm Ba5+; id "Hard-Talkchess-2020.129" ;
N7/8/2KQ2rp/6k1/3p3p/2p4P/4PP2/5N2 w - - bm f4+; id "Hard-Talkchess-2020.130" ;
Nq3n1k/8/P1p2Npp/2Kp3R/pp6/n3p3/8/4Q3 w - - bm Nc7; id "Hard-Talkchess-2020.131" ;
br1r2k1/5pp1/R6p/2pN4/P1P1q3/2P1p1P1/P3P2P/3RQ1K1 b - - bm Qxc4; id "Hard-Talkchess-2020.132" ;
k7/p1pR4/1p3p2/2P2rpB/PbP4p/2N1p2p/KP6/8 w - - bm Bf3+; id "Hard-Talkchess-2020.133" ;
n1QBq1k1/5p1p/5KP1/p7/8/8/8/8 w - - bm Bc7; id "Hard-Talkchess-2020.135" ;
q7/7R/k7/1p6/1p6/1P2B3/7K/8 w - - bm Bd4; id "Hard-Talkchess-2020.140" ;
r1b1qk1r/pn3pp1/1p2p3/3pP1Bp/1bPN4/4Q1R1/P2N1PP1/R5K1 w - - bm Bf6; id "Hard-Talkchess-2020.144" ;
r1b1qr1k/2p3pp/4p3/1pb1PpN1/pn3N1P/8/PPP1QPP1/2KR3R w - - bm Rd8; id "Hard-Talkchess-2020.146" ;
r1b1qr1k/2p3pp/4p3/1pb1PpN1/pn3N1P/P7/1PP1QPP1/2KR3R w - - bm Rd8; id "Hard-Talkchess-2020.147" ;
r1b2rk1/pp3ppp/1n2p3/3pP3/2P2B2/b1PB1qP1/P1Q1NP1P/1K1R3R w - - bm Nd4; id "Hard-Talkchess-2020.153" ;
r1b3k1/ppp1q1pp/2n1p3/3pP2P/8/2NB2Q1/PPP3P1/2K2R2 w - - bm Bg6; id "Hard-Talkchess-2020.155" ;
r1b3k1/ppppn1pp/4n1q1/8/5P2/2N1B3/PPP3QP/3R1RK1 w - - bm f5; id "Hard-Talkchess-2020.156" ;
r1bq1b1r/pp1pp1pp/2n1k3/8/4nQ2/N1p1BN1P/PP3PP1/R3K2R w KQ - bm Nb5; id "Hard-Talkchess-2020.158" ;
r1bq1rk1/1p1nbppp/p3p3/2ppP3/5B1P/2PBP3/PP1N1PP1/R2QK2R w - - bm Bxh7+; id "Hard-Talkchess-2020.159" ;
r1bq1rk1/pp2b2p/2p1pppQ/8/1n1PN2P/3B1N2/PPP2PP1/2KR3R w - - bm Neg5; id "Hard-Talkchess-2020.160" ;
r1br2k1/1p1nqppp/p1p1pn2/3p4/1bPP4/PPN1PN2/2BB1PPP/R2Q1RK1 b - - am Bxa3; id "Hard-Talkchess-2020.164" ;
r1n2N1k/2n2K1p/3pp3/5Pp1/b5R1/8/1PPP4/8 w - - bm Ng6+; id "Hard-Talkchess-2020.166" ;
r1qn1rk1/p1pp1ppp/1p2p2b/1P2P3/P7/R2B1N2/1P4PP/3Q1R1K w - - bm Bxh7+; id "Hard-Talkchess-2020.169" ;
r2q1r2/1b2bpkp/n3p1p1/2ppP1P1/p6R/1PN1BQR1/NPP2P1P/4K3 w - - bm Qf6+; id "Hard-Talkchess-2020.170" ;
r2q1r2/1b2bpkp/p3p1p1/2ppP1P1/7R/1PN1BQR1/1PP2P1P/4K3 w - - bm Qf6+; id "Hard-Talkchess-2020.171" ;
r2qrbk1/1b3p2/3p2pB/1p1P1N2/1np1P3/5NRP/1P3PP1/1B1Qn1K1 w - - bm N3h4; id "Hard-Talkchess-2020.177" ;
r2r2k1/pqp1bppp/1pn1pn2/8/2NP1B2/2N1P1P1/PPQ2P1P/R4RK1 b - - bm Rxd4; id "Hard-Talkchess-2020.179" ;
r3kb1r/4Pp2/pn3P2/1pp3B1/2p5/2N3P1/PP3P1P/3RKB1b w - - bm h4; id "Hard-Talkchess-2020.181" ;
r3r1k1/1b1n1pbp/pq1p2p1/1pp1P3/3P1B2/nP1B1NNP/P4PP1/R2QR1K1 w - - bm Nh5; id "Hard-Talkchess-2020.182" ;
r3r1k1/1b1nbp1p/1qn1p3/1p1pPp2/p2P4/P2BNN2/1P1Q1BPP/R4RK1 w - - bm Ng4; id "Hard-Talkchess-2020.183" ;
r3r1k1/pp1q1p2/2p2npb/PPPp1bnp/3PpN2/2N1P1PP/1R1B1PBK/3Q1R2 b - - bm Bg4; id "Hard-Talkchess-2020.184" ;
r3r1k1/pp1q1p2/2p2npb/PPPp4/3Pp3/2NNPpP1/1R1B1P1K/3Q3R b - - bm Kg7; id "Hard-Talkchess-2020.185" ;
r3r2k/1pq2pp1/4b2p/3pP3/p1nB3P/P2B1RQ1/1PP3P1/3R3K w - - bm Rf6; id "Hard-Talkchess-2020.186" ;
r4rk1/1bq1bppp/p1npp3/2nB1NP1/1p2P3/2N1B3/PPP1QP1P/2KR2R1 w - - bm Qh5; id "Hard-Talkchess-2020.190" ;
r4rk1/4bppp/bq2p3/npnpP3/p2B1P2/P1PB1N2/1P2QNPP/R4RK1 w - - bm Bxh7+; id "Hard-Talkchess-2020.191" ;
r4rk1/pb3pp1/1p1qpR2/2ppN3/3P4/2P4P/PP1pQ1P1/3R2K1 w - - bm Qxd2 Ng4; id "Hard-Talkchess-2020.192" ;
r5k1/6b1/2Nq4/2pP1p2/p1P1pPr1/Pp6/3R2PQ/1K3R2 b - - bm e3; id "Hard-Talkchess-2020.194" ;
r5k1/p1pb2bp/3p3r/P1pPp1p1/2B1Pq2/1R2QPp1/1P4PP/5RBK b - - bm Rxh2+; id "Hard-Talkchess-2020.195" ;
r5rk/1bq1bpp1/1p1ppn1p/pP5P/2P1P3/P1N2P2/1B1Q1P2/1K1R1BR1 w - - bm Nd5; id "Hard-Talkchess-2020.196" ;
r7/1QP1N1Kp/pn2P1b1/Nnk2p2/7p/p4BP1/1rPPp2q/8 w - - bm Nd5; id "Hard-Talkchess-2020.198" ;
r7/1q1r1p1k/3p1Qpp/pbpP4/1nB1P1P1/1P3NBP/5P1K/4R3 w - - bm Bf4; id "Hard-Talkchess-2020.200" ;
rn2kr2/1pp1b1p1/4p3/1Pp1P2p/p1P1NP1P/P7/1B4P1/3RR1K1 w - - bm g3; id "Hard-Talkchess-2020.203" ;
rnb2rk1/1pq1bppp/p3p3/2npP1P1/3N1P2/2NBB3/PPP4P/R2QK2R w KQ - bm Bxh7+; id "Hard-Talkchess-2020.208" ;
rnbq1rk1/p3bp2/2p1p1p1/1p1nP1P1/2pP1P2/2N5/PP4P1/RBBQK2R w KQ - bm Bd2; id "Hard-Talkchess-2020.209" ;
rnbq3r/pppp4/3b1pkp/5p2/2BP4/4P3/PPP2PPP/RN1QK2R w KQ - bm Qh5+; id "Hard-Talkchess-2020.210" ;
rnbqk2r/p4p2/2p1p3/1p2N1pp/PbpPn2P/2N1P1B1/1P3PP1/R2QKB1R w KQkq - bm Qf3; id "Hard-Talkchess-2020.211" ;
rqn2rk1/1p2ppb1/p1b3pp/2R1P1N1/8/4BB1Q/3R1PPP/6K1 w - - bm Nxf7; id "Hard-Talkchess-2020.213" ;

Paloma
Posts: 1007
Joined: Thu Dec 25, 2008 8:07 pm

Re: Questionable positions in the Hard-Talkchess-2020 set

Post by Paloma » Fri Jan 22, 2021 3:23 am

Why has Nr.192 (.... bm Qxd2 Ng4; id "Hard-Talkchess-2020.192") 1.Ng4 as second solution?

192: Hard-Talkchess-2020.192
r4rk1/pb3pp1/1p1qpR2/2ppN3/3P4/2P4P/PP1pQ1P1/3R2K1 w - - 0 1

Analysis by Crystal 110920 Cry3.0:

1. +- (6.57): 1.Qxd2 Ba6 2.Ng4 Rfc8 3.Qg5 Kf8 4.Rf2 Qe7 5.Qh5 Kg8 6.Ne5 f6 7.Ng6 Qd6 8.Rf4 Bc4 9.Qh8+ Kf7 10.Qh7 cxd4
2. +- (3.95): 1.Rxd2 Qd8 2.Rf4 g5 3.Rf1 f6 4.Qh5 Qe8 5.Qh6 Qe7 6.Rdf2 Qg7 7.Rxf6 Qxh6 8.Rxh6 Rxf1+ 9.Kxf1 cxd4 10.cxd4 Ba6+
3. +- (3.46): 1.Ng4 cxd4 2.Rdf1 Qc5 3.Nh6+ Kh7 4.Qd3+ Kh8 5.Nxf7+ Kg8 6.b4 Ba6 7.Rh6 Rxf7 8.Qh7+ Kf8 9.Rxf7+ Kxf7 10.Qg6+ Kf8

3core @3.8GHz, depth 34

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