1b6/3kB3/8/1KpPp2p/4Pp1P/5P2/8/8 w - - acd 56; acs 1909; bm Bxc5; c0 "Bxc5 clearly wins and is probably better than Bf8"; c3 "Bf8"; ce 3383; pm Bxc5; pv Bxc5;
1k6/3p4/1B6/4Pp1p/1p5R/1p4p1/pP3n2/K6n w - - acd 41; acs 600; bm Rxb4; c0 "Rc4 and Rxb4 both appear to lose. Winning move appears difficult."; c3 "Rxh1"; ce -942; pm Rxb4; pv Rxb4;
1r6/4k3/r2p2p1/2pR1p1p/2P1pP1P/pPK1P1P1/P7/1B6 b - - acd 58; acs 1425; bm Ra7; c0 "All of the following moves score between 2 and 3 pawns with fairly deep searches: Kd7 Ke6 Kf6 Ra5 Ra7 Raa8 Rb4 Rba8 Rc6 Rc8 Rg8 Rh8"; c1 "diff=9"; c3 "Rxb3"; ce 242; id "Pos.4 Brzozka-Bronstein, Miskolc 1963"; pm Ra7; pv Ra7 Bc2 Ke6 Bd1 Re7 Be2 Ree8 Rd1 Red8 Rd5 Rd7 Rd1 Rh7 Rd5 Rhh8 Rd1 Rhe8 Rd5 Rec8 Rd2 Rf8 Bf1 Rh8 Rd1 Rbc8 Bg2 Rhd8 Bf1 Rb8;
4r1k1/pp5p/2p1bR2/2P5/2B1n3/2B2K2/PP5P/8 w - - acd 59; acs 3245; bm Bxe6+; c0 "Bxe6+ also appears to win"; c2 "Gillam-Macintosh, CorrGame 1999"; c3 "Rxe6"; ce 598; id "W.Eigenmann: Brillant 037"; pm Bxe6+; pv Bxe6+ Rxe6 Rxe6 Ng5+ Kf4 Nxe6+;
5K2/k4p1p/5p1p/1p3p2/bP6/1p6/1P5p/7B w - - acd 64; acs 2000; bm Ke7; c0 "Ke7 also appears to win"; c3 "Ke8"; ce 480; pm Ke7; pv Ke7 Ka6 Ke8 f4 Kd7 Ka7 Kc7 f3 Bxf3 Ka6 Bh1 Ka7 Bb7 h5 Bg2 h4 Bb7 h5 Bg2 f5 Bb7 f4 Bf3 h3 Bb7 f6 Bh1 f5 Bb7 h4 Bf3 Ka6 Bh1 Ka7 Bb7 f3 Bxf3 Ka6 Bb7+ Ka7 Bd5 Ka6 Bh1 f4 Bf3 Ka7 Bb7 f3 Bxf3 h1N Bxh1 h2 Bf3 h3 Bb7 h1N Bxh1 h2 Bb7 h1N Bxh1 Ka6 Bd5 Ka7 Bf3 Ka6 B;
8/5kpp/2bp1p2/p7/2rP4/R1P2P2/P1N3PP/6K1 b - - acd 40; acs 1250; bm Bd7; c0 "Bd7 and a4 both appear to lose. What is the winning line for a4?"; c3 "a4"; ce -177; pm Bd7; pv Bd7;
looking for verifications of the proposed answers (field c3)
Moderators: hgm, Rebel, chrisw
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Dann Corbit
- Posts: 12541
- Joined: Wed Mar 08, 2006 8:57 pm
- Location: Redmond, WA USA
looking for verifications of the proposed answers (field c3)
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.
But sharing ideas is an even greater virtue. We have another word for this. It is called teaching.
-
Dann Corbit
- Posts: 12541
- Joined: Wed Mar 08, 2006 8:57 pm
- Location: Redmond, WA USA
Re: looking for verifications of the proposed answers (field
Here is some analysis I ran last night with multi-pv set to 3 for this set:
Code: Select all
8/5kpp/2bp1p2/p7/2rP4/R1P2P2/P1N3PP/6K1 b - - acd 35/62; acs 4462 ; acn 41529895331; ce -163 ; bm Ra4; pv Ra4 Rxa4 Bxa4 Ne3 Bc6 d5 Bb7 Kf2 Ke7 Ke2 Bc8 Kd3 h5 Kd4 h4 c4 Bd7 c5 dxc5+ Kxc5 a4 f4 Kd8 Kd6 Bc8 a3 Bd7 Kc5 Bc8 d6 Bd7 g4 hxg3 hxg3 Bc8 f5 Ba6 Nd5 Be2;
8/5kpp/2bp1p2/p7/2rP4/R1P2P2/P1N3PP/6K1 b - - acd 35/62; acs 4462 ; acn 41529895331; ce -141 ; bm Bd7; pv Bd7 Ne3 Rc7 Nd5 Ra7 Nb6 Ke8 Kf2 Be6 d5 Bf7 Ke3 Kd8 Kd4 Kc7 Nc4 a4 Nd2 Bg6 c4 h5 c5 dxc5+ Kxc5 Kd8 Nc4 Rc7+ Kd4 Be8 h4 g5 hxg5 fxg5 Rc3 Bb5 Nd2 Rxc3 Kxc3 Ke7 Kb4 Be2 Kxa4 h4;
8/5kpp/2bp1p2/p7/2rP4/R1P2P2/P1N3PP/6K1 b - - acd 34/62; acs 4462 ; acn 41529895331; ce -168 ; bm Bb5; pv Bb5 Ne3 Rc7 Rxa5 Rxc3 Nf5 Bd3 Ra7+ Ke6 Nxg7+ Kd5 Nh5 Kxd4 Nxf6 d5 h4 Rc6 Nxh7 Rh6 Ng5 Rxh4 Kf2 Bc4 a4 Rh2 a5 Rh1 Kg3 Rh8 f4 Re8 Kf3 Re3+ Kg4 Re8 f5 Ke5 Rd7 Be2+ Nf3+ Bxf3+ Kxf3 Ra8 f6 Kxf6;
5K2/k4p1p/5p1p/1p3p2/bP6/1p6/1P5p/7B w - - acd 68/76; acs 2791 ; acn 30833608583; ce -124 ; bm Ke7; pv Ke7 Kb8 Kxf7 f4 Kxf6 Kc7 Kf5 Kd7 Kxf4 Ke8 Be4 h5 Kf5 h4 Kf4 Kd7 Bh1 Ke7 Bg2 Ke6 Bf3 h3 Be4 Kf6 Ba8 h6 Bd5 h5 Ba8 Kg7 Ke3 Kh6 Bh1 Kh7 Bb7 Kg8 Bd5+ Kf8 Bc6 Kf7 Bh1 Ke7 Kf4 Kd6 Be4 Ke6 Bb7 Kd7 Ba8 Kd8 Be4 Kc7 Kf5 Kc8 Kf4 Kd8 Bd5 Kc7 Kf5 Kb8 Bh1 Kc8 Ke5 Kd7 Kf5 Kd8 Ke6 Kc8 Be4;
5K2/k4p1p/5p1p/1p3p2/bP6/1p6/1P5p/7B w - - acd 68/76; acs 2791 ; acn 30833608583; ce -124 ; bm Bf3; pv Bf3 f4 Kxf7 Kb6 Kxf6 h5 Kf5 h4 Kxf4 h6 Kf5 Kc7 Kg4 h3 Bh1 Kd6 Kf4 Ke7 Bc6 Kf6 Bd5 h5 Ba8 Kg7 Ke3 Kh6 Bh1 Kh7 Bb7 Kg8 Bd5+ Kf8 Bc6 Kf7 Bh1 Ke7 Ba8 Kd7 Kf4 Kd8 Be4 Kc8 Kg3 Kc7 Bh1 Kd7 Kf4 Kd6 Be4 Ke6 Bb7 Ke7 Ke3 Kd7 Bh1 Kd6 Be4 Ke6 Bh1 Ke5 Bf3 h4 Be4 Kd6 Bb7 Kc7 Bd5 Kd8 Bc6 Ke7;
5K2/k4p1p/5p1p/1p3p2/bP6/1p6/1P5p/7B w - - acd 67/76; acs 2791 ; acn 30833608583; ce -124 ; bm Kxf7; pv Kxf7 Kb6 Kxf6 f4 Ke5 f3 Bxf3 h5 Bh1 Kc7 Ke6 h4 Kf5 h3 Kf4 h6 Kg4 Kd6 Kf4 Ke7 Bc6 Kf6 Bd5 h5 Ba8 Kg7 Ke3 Kh6 Bh1 Kh7 Bb7 Kg8 Bd5+ Kf8 Bc6 Kf7 Bh1 Ke7 Bc6 Kd8 Bf3 Kc7 Bd5 Kd6 Be4 Ke6 Bh1 Kf7 Kf4 Ke7 Kf5 Kd8 Be4 Kc7 Bh1 Kc8 Ke6 Kd8 Be4 h4 Bf3 Kc7 Kf5 Kd6 Kf4 Ke7 Ke4 Ke6 Ke3;
4r1k1/pp5p/2p1bR2/2P5/2B1n3/2B2K2/PP5P/8 w - - acd 43; acs 9000 ; acn 134742275406; ce -8 ; bm Kxe4; pv Kxe4 Bxc4+ Kf4 Bxa2 Rd6 Kf8 Kg5 Re2 Rd8+ Kf7 h4 Bd5 Kh6 Re6+ Kg5 Re7 h5 Bg2 Kg4 b6 cxb6 axb6 Rd6 Ke8 Bd4 Bd5 Kf5 Rb7 b4 Rf7+ Ke5 b5 Bc5 Bf3 h6 Bd5 Rf6 Rxf6 Kxf6 Kd7 Ke5 Bf3 Kf5 Bg2 Kf6 Be4 Ke5 Bc2 Bd4 Bd3 Bc5;
4r1k1/pp5p/2p1bR2/2P5/2B1n3/2B2K2/PP5P/8 w - - acd 43; acs 9000 ; acn 134742274484; ce 258 ; bm Rxe6; pv Rxe6 Ng5+ Kf4 Nxe6+ Kf5 Kf7 Bf6 b5 cxb6 axb6 b4 Ra8 Bxe6+ Ke8 Ke5 Ra4 Kd6 Rxb4 Kxc6 Rf4 Bg5 Ra4 Bd5 Rb4 Be3 b5 Bf2 Rb1 Bg3 b4 Bb3 Rc1+ Kb5 Kd7 Kxb4 Kc6 a4 h6 Bf4 Rg1 Bc4 Rb1+ Kc3 h5 a5 h4 a6 Ra1 Bg5 h3 Bf4 Ra4 Kb3 Ra1 Kb4 Rb1+ Kc3 Ra1;
4r1k1/pp5p/2p1bR2/2P5/2B1n3/2B2K2/PP5P/8 w - - acd 43; acs 9000 ; acn 134742273023; ce 266 ; bm Bxe6+; pv Bxe6+ Rxe6 Rxe6 Ng5+ Kf4 Nxe6+ Ke5 Nxc5 Kd6 Nd3 Kc7 b5 Kxc6 b4 Bd4 a6 Kb6 Kf7 Kxa6 Ke6 Kb5 Kd5 Bf6 Kd6 Kc4 Nf4 Bd4 Nd5 Bc5+ Kc6 Bxb4 Ne3+ Kd4 Nc2+ Kc3 Ne3 b3 Nd5+ Kc4 Ne3+ Kd4 Nc2+ Kc3 Ne3 a4 Ng4 h3 Nf2 h4 Ng4 Kd4 Nh6 Ke4 Nf7 Bc3 Nd6+ Ke5 Nf7+ Kf6 Nd6 Bb4 Ne8+ Ke5;
1r6/4k3/r2p2p1/2pR1p1p/2P1pP1P/pPK1P1P1/P7/1B6 b - - acd 54; acs 3611 ; acn 53868801018; ce 194 ; bm Kf6; pv Kf6 Bc2 Rb4 Bd1 Rab6 Rd2 Ke6 Rd5 Rb8 Be2 Ra8 Bd1 Kd7 Kc2 Kc6 Kc3 Ra7 Be2 Rd7 Bd1 Rg7 Be2 Ra7 Bd1 Rb8 Be2 Rg7 Kc2 Rgb7 Kc3 Ra8 Kc2 Rb4 Kc3 Rd8 Bd1 Rdb8 Be2 R4b7 Bf1 Rd7 Be2 Rbb7 Kc2 Rb4 Kc3 Rh7 Bd1 Rhb7 Be2 Rb8 Kc2 Rd8 Kc3;
1r6/4k3/r2p2p1/2pR1p1p/2P1pP1P/pPK1P1P1/P7/1B6 b - - acd 54; acs 3611 ; acn 53868800479; ce 194 ; bm Ke6; pv Ke6 Bc2 Rb4 Rd1 Kd7 Rd5 Rab6 Bd1 Rb8 Be2 Kc6 Kc2 R8b7 Kc3 Rd7 Bd1 Re7 Be2 Ra7 Bd1 Ra8 Be2 Rd8 Bd1 Rdb8 Be2 Kd7 Bd1 Rd8 Be2 Ke6 Kc2 Rbb8 Kc3 Rb7 Bd1 Ra8 Be2 Rb4 Bd1 Ra6 Bc2 Ke7 Bd1 Ra8 Bc2 Rg8 Bd1 Kd7 Be2 Kc6 Bd1 Rg7 Be2;
1r6/4k3/r2p2p1/2pR1p1p/2P1pP1P/pPK1P1P1/P7/1B6 b - - acd 54; acs 3611 ; acn 53868799498; ce 194 ; bm Kd7; pv Kd7 Bc2 Raa8 Bd1 Kc7 Be2 Rb4 Bd1 Rab8 Be2 Rd8 Bd1 Ra8 Be2 Kd7 Kc2 Rg8 Bd1 Ke6 Kc3 Rd8 Be2 Rbb8 Bd1 Rd7 Be2 Rb4 Kc2 Ra7 Kc3 Rg7 Bd1 Rg8 Be2 Rd8 Kc2 Rd7 Kc3 Rdb7 Kc2 Rb8 Bd1 Kd7 Kc3 Kc6 Be2 Ra8 Bd1 Ra7 Be2 Re7 Bd1 Rd7 Be2 Rdb7;
1k6/3p4/1B6/4Pp1p/1p5R/1p4p1/pP3n2/K6n w - - acd 35; acs 8822 ; acn 169765850522; ce -1482 ; bm Rxh1; pv Rxh1 Nxh1 e6 dxe6 Bc7+ Kb7 Bxg3 Kc6 Be1 f4 Bg3 f3 Be1 Kd5 Bh4 e5 Bf2 e4 Be1 Kd4 Bh4 e3 Be1 Kc5 Bxb4+ Kc4 Be1 e2 Bh4 Kc5 Be1 Kd4 Bh4 Ke3 Be1 Kd3 Bf2 Kd2 Bh4 Kc1 Be1 Kd1 Bh4 Kd2 Bg5+ Kd3 Bh4;
1k6/3p4/1B6/4Pp1p/1p5R/1p4p1/pP3n2/K6n w - - acd 35; acs 8822 ; acn 169765849460; ce -961 ; bm Rxb4; pv Rxb4 Ka8 Ra4+ Kb7 Rb4 Kc6 Ba7 g2 Rb6+ Kd5 Rg6 Ng4 Rd6+ Ke4 e6 dxe6 Rxe6+ Kf4 Rd6 h4 Rd4+ Ke5 Rd3 f4 Bg1 Ng3 Rxb3 h3 Kxa2 h2 Rb5+ Kd6 Bxh2 Nxh2 Rb6+ Kd5 Rb5+ Ke4 Rb4+ Kf5 Rb8 g1Q Rf8+ Kg4 b4 Nf3 Rg8+ Ng5 Rc8 Qd4 Kb3 N3e4 Rc1 f3 Ka4 f2 Rh1;
1k6/3p4/1B6/4Pp1p/1p5R/1p4p1/pP3n2/K6n w - - acd 35; acs 8822 ; acn 169765847329; ce -940 ; bm Rc4; pv Rc4 g2 Rc1 Nh3 e6 dxe6 Rc4 f4 Rxb4 Ka8 Ra4+ Kb7 Ra7+ Kb8 Re7 Ng3 Rxe6 Nf5 Rg6 f3 Bc5 Kc7 Bb6+ Kd7 Rg8 h4 Rg4 Kd6 Ba7 Ke5 Bb8+ Nd6 Ba7 Kf5 Rg8 Kf4 Bc5 Nf5 Bb6 Ne7 Rg7 Nd5 Bc5 Kf5 Rf7+ Kg4 Rg7+ Kf4 Rh7;
1b6/3kB3/8/1KpPp2p/4Pp1P/5P2/8/8 w - - acd 41; acs 6772 ; acn 153754982807; ce 57 ; bm Bf6; pv Bf6 Bd6 Bh8 Ke7 Bg7 Kd7 Kc4 Ke7 Bh6 Kd7 Bg5 Kc7 Bf6 Kd7 Kb3 Kc7 Kc3 Kd7 Kc4 Kc8 Kd3 Kd7 Bg5 Kc7 Kc4 Kd7 Kb3 Bf8 Kc2 Bd6 Bf6 Ke8 Kb3 Kd7 Bg7 Kc7 Kc4 Kd7 Kb5 Kc7 Bh8 Kd7 Bf6 Kc7 Bg5 Kd7;
1b6/3kB3/8/1KpPp2p/4Pp1P/5P2/8/8 w - - acd 41; acs 6772 ; acn 153754981859; ce 84 ; bm Bf8; pv Bf8 Bc7 Bxc5 Bd8 Bf2 Kd6 Be1 Bf6 Kc4 Bd8 Bb4+ Kd7 Bc3 Kd6 Be1 Bb6 Kd3 Bd8 Bf2 Ba5 Kc4 Kd7 Kb3 Bd8 Ka4 Kc7 Kb4 Kd6 Kc4 Ba5 Kd3 Bd8 Kc3 Ba5+ Kb3 Kd7 Kc2 Kd6 Kd1 Bd8 Kd2 Bf6 Kc3 Bd8 Kb4 Bf6 Kc4 Bd8 Kb5;
1b6/3kB3/8/1KpPp2p/4Pp1P/5P2/8/8 w - - acd 41; acs 6772 ; acn 153754979907; ce 164 ; bm Bxc5; pv Bxc5 Bc7 Bf2 Bb8 Be1 Bd6 Bc3 Bc7 Ba5 Bd6 Be1 Be7 Kc4 Bd6 Bb4 Bc7 d6 Bb6 Kd5 Bd4 Ba3 Ba1 Kc4 Bd4 Bc5 Bb2 Kb3 Ba1 Kb4 Bb2 Kc4 Ke6 Bb4 Bd4 d7 Kxd7 Kd5 Bf2 Kxe5 Bxh4 Bd2 Kc6 Bxf4 Kd7 Kf5 Be7 Bd2 Kc6 Be3 Kd7;
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.
But sharing ideas is an even greater virtue. We have another word for this. It is called teaching.
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zullil
- Posts: 6442
- Joined: Tue Jan 09, 2007 12:31 am
- Location: PA USA
- Full name: Louis Zulli
Re: looking for verifications of the proposed answers (field
[D]4r1k1/pp5p/2p1bR2/2P5/2B1n3/2B2K2/PP5P/8 w - -
I forgot to stop the search, so here's a very deep Stockfish analysis:
I forgot to stop the search, so here's a very deep Stockfish analysis:
Code: Select all
info depth 76 seldepth 100 multipv 1 score cp 4463 nodes 4231677725879 nps 83102874 hashfull 999 tbhits 0 time 50920955 pv c4e6 e8e6 f6e6 e4g5 f3f4 g5e6 f4e5 e6c5 e5d6 c5d3 d6c7 b7b5 c7c6 b5b4 c3d4 a7a6 c6b6 g8f7 b6a6 f7e6 a6b5 e6d5 d4f6 h7h6 f6g7 h6h5 g7f8 d3b2 f8b4 b2d3 a2a4 d5e6 b4c5 e6d7 b5b6 d3b2 c5d4 b2c4 b6c5 c4d2 d4e5 d2f3 e5f4 f3e1 f4g3 e1d3 c5b6 d3b2 b6b5 h5h4 g3h4 d7c8 h4f2 c8c7 h2h4 c7d6 f2g3 d6e7 a4a5 b2d1 a5a6 d1c3 b5a5 c3e4 a6a7 e4g3 a7a8q g3f5 a5b5 f5d6 b5c6 d6f5 a8a5 e7e6 a5e1 e6f7 e1e4 f5g7 e4f3 f7g6 f3d5 g6f6 c6d7 f6g6 h4h5 g6f6-
Dann Corbit
- Posts: 12541
- Joined: Wed Mar 08, 2006 8:57 pm
- Location: Redmond, WA USA
Re: looking for verifications of the proposed answers (field
I think we can conclude that there is nothing wrong with the alternative Bxe6+ then.
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.
But sharing ideas is an even greater virtue. We have another word for this. It is called teaching.