The "IQ" test

[lech]

I added some new good examples.

The "IQ" test is a very important part of my project (Sting) and doesn't contain middle-game tactical positions and technical endgames.
Here are positions dedicated to test so-called by me "quasi-intelligent" abilities of engines (full spectrum of possible problems).

Set parameters: "threads" to 1 and "hash" to 1024 and clear hash before each of items.
Don't use such external tricks like: rule-50 changing, null-move disabling, special parameters and others.
The external tools like: MultiPV, tablebases, "backward-forward" and "Monte Carlo" are not welcome too.

"WIN" means the correct solution and non-zero score.

[pgn] [Result "0"] [FEN "rk6/p1r3p1/P3B1Kp/1p2B3/8/8/8/8 w - - 0 1"] 1. Bd7 {win} [Result "1"] [FEN "7k/6rp/6pN/1r4P1/3B4/8/8/K7 b - - 0 1"] 1... Rxg5 [Result "2"] [FEN "1B1k4/3p4/1Kp5/PpP2p2/1PqP1P2/8/1P6/8 w - - 0 1"] 1. a6 {win} [Result "3"] [FEN "3N2r1/2K1p3/4Pk2/8/Bp5b/8/2P5/8 b - - 0 1"] 1... Bg3 2. Kd7 {or Kc8} Rxd8 [Result "4"] [FEN "8/7p/5P1k/1p5P/5p2/2p1p3/P1P1P1P1/1K3Nb1 w - - 0 1"] 1. Ng3 [Result "5"] [FEN "6q1/PpB5/k7/P6K/6n1/1P4p1/5p2/1B3N1N w - - 0 1"] 1. a8Q {or a8R} [Result "6"] [FEN "6k1/6p1/4Rb1p/p7/rp2P1N1/2P3P1/1P5P/6K1 b - - 0 1"] 1... Bxc3 [Result "7"] [FEN "8/8/p2k1p2/1p1p3p/1P1P3p/P3NPP1/5K2/1b6 w - - 0 1"] 1. Ng2 [Result "8"] [FEN "2k5/p7/Pp1p1b2/1P1P1p2/2P2P1p/3K3P/5B2/8 w - - 0 1"] 1. c5 [Result "9"] [FEN "1n6/Pp1p1p1p/1P1P1P1P/4K3/2p5/p7/rpp1P3/qkb1R3 w - - 0 1"] 1. axb8N {win} [Result "10"] [FEN "1N4K1/1pp1p3/7k/2r3pP/p2pp1P1/P6N/8/2B5 w - - 0 1"] 1. Nc6 [Result "11"] [FEN "5K2/k4p1p/5p1p/1p3p2/bP6/1p6/1P5p/7B w - - 0 1"] 1. Ke8 {or Ke7 win} [Result "12"] [FEN "k1b5/1p1p1p1p/1PpPpP2/2B5/8/2p1p2P/2PbP3/3K4 w - - 0 1"] 1. Bd4 {win} [Result "13"] [FEN "8/8/8/8/1kB1q3/8/1PRb4/1K6 b - - 0 1"] 1... Qh1 2. Ka2 Qa8 3.Kb1 Qe4 {or other way to get the start position for white: 8/8/8/8/1kB1q3/8/1PRb4/1K6 w - - 0 1} [Result "14"] [FEN "8/2N4r/1p3pkp/8/5K1p/2P4N/P3Bn2/8 w - - 0 1"] 1. Bh5 [Result "15"] [FEN "4k1rr/1R1R3p/8/8/8/2K5/7P/8 w k - 0 1"] 1. Rd2 [Result "16"] [FEN "5k2/4bp2/2B3p1/1P4p1/3R4/3P2PP/2r2PK1/8 b - - 0 1"] 1... Rxf2 [Result "17"] [FEN "1b6/2p5/1kB5/1PN5/8/3K4/8/q7 w - - 0 1"] 1. Nb3 [Result "18"] [FEN "N7/8/2KQ2rp/6k1/3p3p/2p4P/4PP2/5N2 w - - 0 1"] 1. f4 [Result "19"] [FEN "2br4/r2pp3/8/1p1p1kN1/pP1P4/2P3R1/PP3PP1/2K5 w - - 0 1"] 1. Nf7 Re8 2. Nd6 [Result "20"] [FEN "8/8/4B3/6p1/7k/8/4pPKP/8 w - - 0 1"] 1. Bg4 [Result "21"] [FEN "r7/7k/5R2/p3p3/Pp1pPp2/1PpP1Pp1/K1P3P1/8 w - - 0 1"] 1. Kb1 Kg7 {or 1... Rh8 2. Rf8} 2. Rh6 [Result "22"] [FEN "1K3kB1/8/6p1/7R/8/4b3/8/6n1 w - - 0 1"] 1. Rh8 Kg7 2. Bh7 [Result "23"] [FEN "8/8/R7/1b4k1/5p2/1B3r2/7P/7K w - - 0 1"] 1. h4 Kxh4 2. Rh6 Kg5 3. Rh5 [Result "24"] [FEN "7Q/4p3/4p3/p1p1P3/Pp2P3/3Kp3/p1PbP3/kN6 w - - 0 1"] 1. Na3 bxa3 2. Qh1 Kb2 3. Qa1 Kxa1 4. c4 [Result "25"] [FEN "7r/K7/5k1n/p3p3/Pp1pPp1p/1PpP1PpP/2P3P1/N1RR1B2 b - - 0 1"] {win} [Result "26"] [FEN "q7/b1p5/kp1p4/p2PN3/PPP5/1K6/8/5B2 w - - 0 1"] 1. c5 Kb7 2. Ba6 {win} [Result "27"] [FEN "1k1n4/1p1b1p2/1Bp1pPp1/1PP1P3/8/6P1/8/1K6 w - - 0 1"] 1. Bc7 {win} [Result "28"] [FEN "4q1kr/p6p/1prQPppB/4n3/4P3/2P5/PP2B2P/R5K1 w - - 0 1"] 1. Qxe5 {win} [Result "29"] [FEN "q1b4n/1p1pKp2/1p1p1Pp1/1P1P2Pp/2P4P/8/7R/1N1k4 w - - 0 1"] 1. Ra2 {win} [Result "30"] [FEN "3k4/2pq3p/pp5R/4P3/P6P/2PN4/1PN3K1/8 w - - 0 1"] 1. Nd4 {win} [Result "31"] [FEN "8/7p/6pP/p4pP1/3BpP2/p1KpP3/pn1N4/k7 w - - 0 1"] 1. Bh8 {win} [Result "32"] [FEN "8/6p1/p7/rp1K2p1/kb3pP1/2p2p1b/P1Np1P2/3N2R1 w - - 0 1"] 1. Ke6 {or Ke4 win} [Result "33"] [FEN "B7/p1p5/k2p4/p3p3/P1Nb1p2/6p1/7p/4K3 w - - 0 1"] {Ke1->h3->c8} [Result "34"] [FEN "1qN5/b1pB4/1pP2k2/pP3P2/P1P5/8/8/K7 w - - 0 1"] {Ka1->h5->d8} [Result "35"] [FEN "8/3P3k/n2K3p/2p3n1/1b4N1/2p1p1P1/8/3B4 w - - 0 1"] 1. Nf6 [Result "36"] [FEN "8/5K2/3p3p/3p3P/pp1P4/rkb1R3/p1p3P1/n1B2B2 w - - 0 1"] 1. Rd3 {win} [Result "37"] [FEN "6bn/p4p1k/rp3Pp1/rp2BBP1/1p6/pK6/P2P4/8 w - - 0 1"] 1. Bc8 {win} [Result "38"] [FEN "qn6/b1Kp3p/p1pB3p/p7/P1NkP3/2pP4/2B5/8 w - - 0 1"] 1. Bf4 {or Kc8} [Result "39"] [FEN "8/P7/4k3/8/5P2/4Bq2/5P2/5K2 b - - 0 1"] 1... Kf5 [Result "40"] [FEN "8/6kP/1p6/p7/Pr6/K2B4/8/8 b - - 0 1"] {Rb4->h4 and next Kg7->e5} [Result "41"] [FEN "8/8/2b1N3/5p2/3B4/2K5/6kp/R7 w - - 0 1"] 1. Rh1 [Result "42"] [FEN "8/8/4kpp1/3p1b2/p6P/2B5/6P1/6K1 b - - 0 1"] 1... Bh3 [Result "43"] [FEN "5rk1/5ppp/p1Q1p3/1R6/q7/4b1P1/P2RPP1P/6K1 w - - 0 1"] 1. Rd8 {win} [Result "44"] [FEN "r7/1b1r4/k1p1p1p1/1p1pPpPp/p1PP1P1P/PP1K4/8/4Q3 w - - 0 1"] 1. Qa5 [Result "45"] [FEN "3B4/1r2p3/r2p1p2/bkp1P1p1/1p1P1PPp/p1P4P/PPB1K3/8 w - - 0 1"] 1. Ba4 [Result "46"] [FEN "2k5/2p5/1q1p4/pPpPp1pp/N1P1Pp2/P4PbP/KQ4P1/8 w - - 0 1"] {avoid Nxb6} [Result "47"] [FEN "1r6/4k3/r2p2p1/2pR1p1p/2P1pP1P/pPK1P1P1/P7/1B6 b - - 0 1"] 1... Rxb3 [Result "48"] [FEN "8/5k2/6p1/4BP1p/6p1/p1p3PP/6P1/1n2K2R b K - 0 1"] 1... a2 2. fxg6 Kg8 [Result "49"] [FEN "8/3k1b1r/2p1p1p1/rpPpPpPp/p2P1P1P/P2K4/8/4B3 w - - 0 1"] 1. Bb4 [Result "50"] [FEN "7b/p1p1p3/P1PpPp2/2nP1kpr/5P1p/p3KBPP/P7/8 w - - 0 1"] 1. Be4 [Result "51"] [FEN "7r/p1p1p1pk/3pPp1p/2pP1PP1/P1P4P/1K6/P6B/8 w - - 0 1"] 1. g6 Kg8 2. a5 a6 3. Bxd6 cxd6 4. h5 {or 2. Bxd6 cxd6 3. h5} [Result "52"] [FEN "8/1p1q1k2/1Pp5/p1Pp4/P2Pp1p1/4PpPp/1N3P1P/3B2K1 w - - 0 1"] 1. Bb3 Qc8 2. Nd1 Qa8 3. Bc4 [Result "53"] [FEN "8/8/2pk4/8/p1p3B1/PpP5/1P6/r1NK4 w - - 0 1"] 1. Bf5 Ra2 2. Nxa2 bxa2 3. Kc1 a1Q 4. Bb1 [Result "54"] [FEN "1R3b2/5ppQ/6Pp/6PP/R6P/P7/7K/2q1k3 w - - 0 1"] 1. Rb1 Qxb1 2. gxf7 [Result "55"] [FEN "Kn6/8/8/3R2PB/8/2p2NP1/1q6/2k5 w - - 0 1"] 1. Rd1 [Result "56"] [FEN "1B3B1B/2B5/p6B/8/8/8/8/1k1K4 w - - 0 1"] 1. Bce5 [Result "57"] [FEN "4kr2/5p1K/3p1Q2/1p4P1/4P3/1PP5/7b/8 w - - 0 1"] 1. Kh6 {win} [Result "58"] [FEN "6R1/8/2pB3k/2P4p/5p1q/5P2/4P1K1/8 w - - 0 1"] 1. Bf8 {win} [Result "59"] [FEN "n2Bqk2/5p1p/Q4KP1/p7/8/8/8/8 w - - 0 1"] 1. Qc8 Kg8 2. Bc7 {win} [Result "60"] [FEN "8/5p2/8/8/p7/rpK4p/1p3ppr/bQ1N1bqk w - - 0 1"] 1. Kb4 {or Kd4 win} [Result "61"] [FEN "8/8/7p/3KNN1k/2p4p/8/3P2p1/8 w - - 0 1"] 1. Kc6 [Result "62"] [FEN "1R6/pPk1r3/2p5/K7/8/2B1b3/8/8 w - - 0 1"] 1. Ka6 [Result "63"] [FEN "8/p7/qkpN1p2/8/1B1P4/PP3K2/5P2/8 w - - 0 1"] 1. Ba5 {win} [Result "64"] [FEN "2N5/p7/P7/8/1KPp1p1p/3p1Bpp/3P2rq/R5bk w - - 0 1"] 1. Nb6 {win} [Result "65"] [FEN "5kN1/3p1q2/5P2/5PP1/2pK4/1p1R4/1P6/8 w - - 0 1"] 1. Rxb3 [Result "66"] [FEN "2b1rk2/5p2/p1P5/2p2P2/2p5/7B/P7/2KR4 w - - 0 1"] 1. f6 [Result "67"] [FEN "2r5/prkpR1p1/2p1ppK1/P1p1N1B1/P1P1P3/8/8/8 w - - 0 1"] 1. Bf4 [Result "68"] [FEN "rk1b4/p2p2p1/1P6/2R2P2/8/2K5/8/5B2 w - - 0 1"] 1. Rc8 [Result "69"] [FEN "3k4/4pp2/n2n4/5BN1/3N4/b7/4K3/8 w - - 0 1"] 1. Nxf7 [Result "70"] [FEN "4b3/8/1P6/3K4/6p1/5pP1/5P1B/7k w - - 0 1"] 1. b7 Bb5 2. b8R [Result "71"] [FEN "8/5pKN/5Pp1/5kP1/8/Bb6/8/7q w - - 0 1"] 1. Bc5 {or any move} Qxh7+ [Result "72"] [FEN "8/p5p1/1pP3p1/p5p1/k3p3/4p3/K7/8 w - - 0 1"] 1. c7 {win} [Result "73"] [FEN "q7/8/2p5/B2p2pp/5pp1/2N3k1/6P1/7K w - - 0 1"] 1. Ne4 Kh4 2. Ng3 fxg3 3. Bb6 [Result "74"] [FEN "q7/7R/k7/1p6/1p6/1P2B3/7K/8 w - - 0 1"] 1. Bd4 {win} [Result "75"] [FEN "1q1r3k/3P1pp1/ppBR1n1p/4Q2P/P4P2/8/5PK1/8 w - - 0 1"] 1. Rxf6 [Result "76"] [FEN "1r3q1k/2N2P1p/6pQ/4p3/7p/n6P/3B4/7K w - - 0 1"] 1. Qf4 [Result "77"] [FEN "5nr1/2Pp2pk/3Pp1p1/4P1P1/6P1/5K2/8/7n w - - 0 1"] 1. c8N [Result "78"] [FEN "2K3k1/1p6/R3p1p1/1rB1P1P1/8/8/1Pb5/8 w - - 0 1"] 1. Rc6 [Result "79"] [FEN "4q3/2r1r2p/3P3P/1p6/kP6/Pp6/1P6/KB2R3 w - - 0 1"] 1. Rxe7 Qxe7 {or 1... Rxe7 2. dxe7} 2. dxc7 [Result "80"] [FEN "3k4/8/7p/2p1p1pP/1pPpPpP1/1P1P1P2/N7/2K5 w - - 0 1"] {Na2->h4} [Result "81"] [FEN "8/8/8/1k3p2/p1p1pPp1/PpPpP1Pp/1P1P3P/QNK2NRR w - - 0 1"] {win} [Result "82"] [FEN "4b1k1/P4pPp/1R3P1P/2r5/8/1P6/1K6/8 w - - 0 1"] 1. a8B [Result "83"] [FEN "4N2k/4PB1p/7P/B1p5/2P5/3q2Pp/1P3P1K/2r5 w - - 0 1"] 1. Bc3 Rxc3 2. Nc7 [Result "84"] [FEN "1k6/3p4/1B6/4Pp1p/1p5R/1p4p1/pP3n2/K6n w - - 0 1"] 1. Rxh1 Nxh1 2. e6 dxe6 3. Bc7 [Result "85"] [FEN "N3kb2/pq4p1/4B1P1/1p1P2B1/p7/3P4/2P5/2K5 w - - 0 1"] 1. Bf7 Kd7 2. Be6 Kd6 3. Bf4 Kc5 4. Be3 Kb4 5. Bd2 Ka3 6. Kb1 [Result "86"] [FEN "8/1B3b1p/7P/p2p4/P2pp1kp/Q7/1N1Pq2P/7K w - - 0 1"] 1. Qh3 [Result "87"] [FEN "1B2b2k/2N1qr2/4n2p/4p1PQ/1r2N3/1p6/7P/2KB4 w - - 0 1"] 1. Nd5 Rc4 2. Kb1 Rc1 3. Kb2 Rf2 4. Nf2 Rb1 5. Kb1 Qh7 6. g6 Bg6 7. Bc2 bxc2 8. Kc1 Bxh5 9. Be5 Ng7 10. Ne7 [Result "88"] [FEN "2k4N/Q1np4/2p2Bpp/1p1P4/pPP1p2P/P7/7q/1K6 w - - 0 1"] 1. Nf7 Qg3 2. Qxc7 {win} [Result "89"] [FEN "8/4nk2/1p3p2/2rp2pp/1P1R1N1P/6P1/3KPP2/8 b - - 0 1"] {avoid 1... Rb5} [Result "90"] [FEN "5BK1/5p1N/5Pp1/6Pk/8/1b6/8/7q b - - 0 1"] 1... Qa8 2.Kg7 Qd5 {or Qg2 and next Qxg5} [Result "91"] [FEN "2b5/1pr4p/3bp1pk/1p6/1PpN2PP/K1P1n3/P3N1R1/3R4 w - - 0 1"] 1. Nxb5 Nxd1 2. Nd6 b5 3. g5 Kh5 4. Nxc8 Rxc8 5. Nf4 Kxh4 6. Nxg6 [Result "92"] [FEN "8/1p1pNpbk/q2P4/p3p2K/PP2N3/4P1P1/3P4/8 w - - 0 1"] 1. b5 Qb6 2. Nc8 [Result "93"] [FEN "1rr5/6pk/7p/8/8/7P/1Pb1RRPK/8 b - - 0 1"] {avoid Rxb2} [Result "94"] [FEN "6Q1/8/8/8/8/7k/ppp1p3/brrbK3 w - - 0 1"] 1. Qg1 {win} [Result "95"] [FEN "1B1K1k2/4N2p/3pP1pP/6p1/p7/3N2b1/2r2p2/8 w - - 0 1"] 1. Nc6 {win} [Result "96"] [FEN "8/4Pr1N/8/6PN/8/3K1ppp/4prkb/4Bbnn w - - 0 1"] 1. Nf8 {win} [Result "97"] [FEN "8/b7/3p2b1/5p1n/5Pk1/4P1p1/B5P1/R4K2 w - - 0 1"] 1. Ke2 [Result "98"] [FEN "5K2/8/5B2/p7/8/p4p2/pn1PpPp1/kb2R3 w - - 0 1"] 1. Bh8 a4 2. Kg7 {win} [Result "99"] [FEN "8/8/8/3P1pp1/2K5/B3kP2/4N3/3b1n1n w - - 0 1"] 1. Nd4 [/pgn]

The authors of studies selected to the "IQ" test:

by YACPDB:

Blathy Otto - 2, 11, 12
Benko Pal - 15, 74
Hasek Josef - 21, 27
Gurvich Abram - 22
Kasparyan Genrikh - 23
Neghina Mihai - 26
Grasemann Herbert - 36
Popov Georgy & Hanyan Aleksei - 38 (part of study)
Rudolph William - 45
Troitzky Aleksei - 56
Reti Richard - 57
Matous Mario - 59
Behting Carl - 61
Klyatskin Mikhail - 65
Kubbel Karl - 68
Novomesky Daniel - 72
Lazard Frederic - 73
Marwitz Jan - 78
Lamford Paul - 81
Simkhovich Froim - 85

by other sources (Talkchess.com):

Solovyov Y. - 5
Babic M. - 8
Neghina Mihai - 10, 30, 83, 86, 88, 91, 96
Simkhovich Froim - 19
Plaskett - 35
Hoch Yehuda & Aloni Hillel - 54
Troitzky Aleksei - 58
Smyslov Vasily - 66
Bondarenko F. & Kuznetsov A. - 67
Surya Sekhar Ganguly - 80
Stavrietsky Aleksandr - 87
Kazantsev A. - 92
Ryabinin - 95
Fekete Zoltan - 98 (part of study)

[lech]

(CORRECTION)

The authors of studies selected to the "IQ" test:

by YACPDB:

Blathy Otto - 2, 11, 12
Benko Pal - 15, 74
Hasek Josef - 21, 27
Gurvich Abram - 22
Kasparyan Genrikh - 23
Neghina Mihai - 26
Grasemann Herbert - 36
Popov Georgy & Hanyan Aleksei - 38 (part of study)
Rudolph William - 45
Troitzky Aleksei - 56
Reti Richard - 57
Matous Mario - 59
Behting Carl - 61
Klyatskin Mikhail - 65
Kubbel Karl - 68
Novomesky Daniel - 72
Lazard Frederic - 73
Marwitz Jan - 78
Lamford Paul - 81
Simkhovich Froim - 85

by other sources:

Solovyov Y. - 5
Babic M. - 8
Neghina Mihai - 10, 30, 83, 86, 88, 91
Simkhovich Froim - 19
Plaskett - 35
Hoch Yehuda & Aloni Hillel - 54
Troitzky Aleksei - 58
Smyslov Vasily - 66
Bondarenko F. & Kuznetsov A. - 67
Surya Sekhar Ganguly - 80
Stavrietsky Aleksandr - 87
Kazantsev A. - 92
Ryabinin - 95
Neghina Mihai & Rusz Arpad- 96
Kamody Mario & Neghina Mihai - 97
Fekete Zoltan - 98 (part of study)

[Paloma]

Hi Marek,

...
Grasemann Herbert - 36

is wrong, it's Van Breukelen=G Schakend Nederland#2207

[lech]

For this reason I don't like to add any authors here.
It is not a question who is the author of an item HERE.
But some of you are able to see this question MAINLY.
It is better to write NOTHING than a wrong data.
Here are position dedicated machines MAINLY.
They are far to want to know it.

I have doubts to 35 too.

I remove all authors and the "IQ" test is:
[pgn] [Result "0"] [FEN "rk6/p1r3p1/P3B1Kp/1p2B3/8/8/8/8 w - - 0 1"] 1. Bd7 {win} [Result "1"] [FEN "7k/6rp/6pN/1r4P1/3B4/8/8/K7 b - - 0 1"] 1... Rxg5 [Result "2"] [FEN "1B1k4/3p4/1Kp5/PpP2p2/1PqP1P2/8/1P6/8 w - - 0 1"] 1. a6 {win} [Result "3"] [FEN "3N2r1/2K1p3/4Pk2/8/Bp5b/8/2P5/8 b - - 0 1"] 1... Bg3 2. Kd7 {or Kc8} Rxd8 [Result "4"] [FEN "8/7p/5P1k/1p5P/5p2/2p1p3/P1P1P1P1/1K3Nb1 w - - 0 1"] 1. Ng3 [Result "5"] [FEN "6q1/PpB5/k7/P6K/6n1/1P4p1/5p2/1B3N1N w - - 0 1"] 1. a8Q {or a8R} [Result "6"] [FEN "6k1/6p1/4Rb1p/p7/rp2P1N1/2P3P1/1P5P/6K1 b - - 0 1"] 1... Bxc3 [Result "7"] [FEN "8/8/p2k1p2/1p1p3p/1P1P3p/P3NPP1/5K2/1b6 w - - 0 1"] 1. Ng2 [Result "8"] [FEN "2k5/p7/Pp1p1b2/1P1P1p2/2P2P1p/3K3P/5B2/8 w - - 0 1"] 1. c5 [Result "9"] [FEN "1n6/Pp1p1p1p/1P1P1P1P/4K3/2p5/p7/rpp1P3/qkb1R3 w - - 0 1"] 1. axb8N {win} [Result "10"] [FEN "1N4K1/1pp1p3/7k/2r3pP/p2pp1P1/P6N/8/2B5 w - - 0 1"] 1. Nc6 [Result "11"] [FEN "5K2/k4p1p/5p1p/1p3p2/bP6/1p6/1P5p/7B w - - 0 1"] 1. Ke8 {or Ke7 win} [Result "12"] [FEN "k1b5/1p1p1p1p/1PpPpP2/2B5/8/2p1p2P/2PbP3/3K4 w - - 0 1"] 1. Bd4 {win} [Result "13"] [FEN "8/8/8/8/1kB1q3/8/1PRb4/1K6 b - - 0 1"] 1... Qh1 2. Ka2 Qa8 3.Kb1 Qe4 {or other way to get the start position for white: 8/8/8/8/1kB1q3/8/1PRb4/1K6 w - - 0 1} [Result "14"] [FEN "8/2N4r/1p3pkp/8/5K1p/2P4N/P3Bn2/8 w - - 0 1"] 1. Bh5 [Result "15"] [FEN "4k1rr/1R1R3p/8/8/8/2K5/7P/8 w k - 0 1"] 1. Rd2 [Result "16"] [FEN "5k2/4bp2/2B3p1/1P4p1/3R4/3P2PP/2r2PK1/8 b - - 0 1"] 1... Rxf2 [Result "17"] [FEN "1b6/2p5/1kB5/1PN5/8/3K4/8/q7 w - - 0 1"] 1. Nb3 [Result "18"] [FEN "N7/8/2KQ2rp/6k1/3p3p/2p4P/4PP2/5N2 w - - 0 1"] 1. f4 [Result "19"] [FEN "2br4/r2pp3/8/1p1p1kN1/pP1P4/2P3R1/PP3PP1/2K5 w - - 0 1"] 1. Nf7 Re8 2. Nd6 [Result "20"] [FEN "8/8/4B3/6p1/7k/8/4pPKP/8 w - - 0 1"] 1. Bg4 [Result "21"] [FEN "r7/7k/5R2/p3p3/Pp1pPp2/1PpP1Pp1/K1P3P1/8 w - - 0 1"] 1. Kb1 Kg7 {or 1... Rh8 2. Rf8} 2. Rh6 [Result "22"] [FEN "1K3kB1/8/6p1/7R/8/4b3/8/6n1 w - - 0 1"] 1. Rh8 Kg7 2. Bh7 [Result "23"] [FEN "8/8/R7/1b4k1/5p2/1B3r2/7P/7K w - - 0 1"] 1. h4 Kxh4 2. Rh6 Kg5 3. Rh5 [Result "24"] [FEN "7Q/4p3/4p3/p1p1P3/Pp2P3/3Kp3/p1PbP3/kN6 w - - 0 1"] 1. Na3 bxa3 2. Qh1 Kb2 3. Qa1 Kxa1 4. c4 [Result "25"] [FEN "7r/K7/5k1n/p3p3/Pp1pPp1p/1PpP1PpP/2P3P1/N1RR1B2 b - - 0 1"] {win} [Result "26"] [FEN "q7/b1p5/kp1p4/p2PN3/PPP5/1K6/8/5B2 w - - 0 1"] 1. c5 Kb7 2. Ba6 {win} [Result "27"] [FEN "1k1n4/1p1b1p2/1Bp1pPp1/1PP1P3/8/6P1/8/1K6 w - - 0 1"] 1. Bc7 {win} [Result "28"] [FEN "4q1kr/p6p/1prQPppB/4n3/4P3/2P5/PP2B2P/R5K1 w - - 0 1"] 1. Qxe5 {win} [Result "29"] [FEN "q1b4n/1p1pKp2/1p1p1Pp1/1P1P2Pp/2P4P/8/7R/1N1k4 w - - 0 1"] 1. Ra2 {win} [Result "30"] [FEN "3k4/2pq3p/pp5R/4P3/P6P/2PN4/1PN3K1/8 w - - 0 1"] 1. Nd4 {win} [Result "31"] [FEN "8/7p/6pP/p4pP1/3BpP2/p1KpP3/pn1N4/k7 w - - 0 1"] 1. Bh8 {win} [Result "32"] [FEN "8/6p1/p7/rp1K2p1/kb3pP1/2p2p1b/P1Np1P2/3N2R1 w - - 0 1"] 1. Ke6 {or Ke4 win} [Result "33"] [FEN "B7/p1p5/k2p4/p3p3/P1Nb1p2/6p1/7p/4K3 w - - 0 1"] {Ke1->h3->c8} [Result "34"] [FEN "1qN5/b1pB4/1pP2k2/pP3P2/P1P5/8/8/K7 w - - 0 1"] {Ka1->h5->d8} [Result "35"] [FEN "8/3P3k/n2K3p/2p3n1/1b4N1/2p1p1P1/8/3B4 w - - 0 1"] 1. Nf6 [Result "36"] [FEN "8/5K2/3p3p/3p3P/pp1P4/rkb1R3/p1p3P1/n1B2B2 w - - 0 1"] 1. Rd3 {win} [Result "37"] [FEN "6bn/p4p1k/rp3Pp1/rp2BBP1/1p6/pK6/P2P4/8 w - - 0 1"] 1. Bc8 {win} [Result "38"] [FEN "qn6/b1Kp3p/p1pB3p/p7/P1NkP3/2pP4/2B5/8 w - - 0 1"] 1. Bf4 {or Kc8} [Result "39"] [FEN "8/P7/4k3/8/5P2/4Bq2/5P2/5K2 b - - 0 1"] 1... Kf5 [Result "40"] [FEN "8/6kP/1p6/p7/Pr6/K2B4/8/8 b - - 0 1"] {Rb4->h4 and next Kg7->e5} [Result "41"] [FEN "8/8/2b1N3/5p2/3B4/2K5/6kp/R7 w - - 0 1"] 1. Rh1 [Result "42"] [FEN "8/8/4kpp1/3p1b2/p6P/2B5/6P1/6K1 b - - 0 1"] 1... Bh3 [Result "43"] [FEN "5rk1/5ppp/p1Q1p3/1R6/q7/4b1P1/P2RPP1P/6K1 w - - 0 1"] 1. Rd8 {win} [Result "44"] [FEN "r7/1b1r4/k1p1p1p1/1p1pPpPp/p1PP1P1P/PP1K4/8/4Q3 w - - 0 1"] 1. Qa5 [Result "45"] [FEN "3B4/1r2p3/r2p1p2/bkp1P1p1/1p1P1PPp/p1P4P/PPB1K3/8 w - - 0 1"] 1. Ba4 [Result "46"] [FEN "2k5/2p5/1q1p4/pPpPp1pp/N1P1Pp2/P4PbP/KQ4P1/8 w - - 0 1"] {avoid Nxb6} [Result "47"] [FEN "1r6/4k3/r2p2p1/2pR1p1p/2P1pP1P/pPK1P1P1/P7/1B6 b - - 0 1"] 1... Rxb3 [Result "48"] [FEN "8/5k2/6p1/4BP1p/6p1/p1p3PP/6P1/1n2K2R b K - 0 1"] 1... a2 2. fxg6 Kg8 [Result "49"] [FEN "8/3k1b1r/2p1p1p1/rpPpPpPp/p2P1P1P/P2K4/8/4B3 w - - 0 1"] 1. Bb4 [Result "50"] [FEN "7b/p1p1p3/P1PpPp2/2nP1kpr/5P1p/p3KBPP/P7/8 w - - 0 1"] 1. Be4 [Result "51"] [FEN "7r/p1p1p1pk/3pPp1p/2pP1PP1/P1P4P/1K6/P6B/8 w - - 0 1"] 1. g6 Kg8 2. a5 a6 3. Bxd6 cxd6 4. h5 {or 2. Bxd6 cxd6 3. h5} [Result "52"] [FEN "8/1p1q1k2/1Pp5/p1Pp4/P2Pp1p1/4PpPp/1N3P1P/3B2K1 w - - 0 1"] 1. Bb3 Qc8 2. Nd1 Qa8 3. Bc4 [Result "53"] [FEN "8/8/2pk4/8/p1p3B1/PpP5/1P6/r1NK4 w - - 0 1"] 1. Bf5 Ra2 2. Nxa2 bxa2 3. Kc1 a1Q 4. Bb1 [Result "54"] [FEN "1R3b2/5ppQ/6Pp/6PP/R6P/P7/7K/2q1k3 w - - 0 1"] 1. Rb1 Qxb1 2. gxf7 [Result "55"] [FEN "Kn6/8/8/3R2PB/8/2p2NP1/1q6/2k5 w - - 0 1"] 1. Rd1 [Result "56"] [FEN "1B3B1B/2B5/p6B/8/8/8/8/1k1K4 w - - 0 1"] 1. Bce5 [Result "57"] [FEN "4kr2/5p1K/3p1Q2/1p4P1/4P3/1PP5/7b/8 w - - 0 1"] 1. Kh6 {win} [Result "58"] [FEN "6R1/8/2pB3k/2P4p/5p1q/5P2/4P1K1/8 w - - 0 1"] 1. Bf8 {win} [Result "59"] [FEN "n2Bqk2/5p1p/Q4KP1/p7/8/8/8/8 w - - 0 1"] 1. Qc8 Kg8 2. Bc7 {win} [Result "60"] [FEN "8/5p2/8/8/p7/rpK4p/1p3ppr/bQ1N1bqk w - - 0 1"] 1. Kb4 {or Kd4 win} [Result "61"] [FEN "8/8/7p/3KNN1k/2p4p/8/3P2p1/8 w - - 0 1"] 1. Kc6 [Result "62"] [FEN "1R6/pPk1r3/2p5/K7/8/2B1b3/8/8 w - - 0 1"] 1. Ka6 [Result "63"] [FEN "8/p7/qkpN1p2/8/1B1P4/PP3K2/5P2/8 w - - 0 1"] 1. Ba5 {win} [Result "64"] [FEN "2N5/p7/P7/8/1KPp1p1p/3p1Bpp/3P2rq/R5bk w - - 0 1"] 1. Nb6 {win} [Result "65"] [FEN "5kN1/3p1q2/5P2/5PP1/2pK4/1p1R4/1P6/8 w - - 0 1"] 1. Rxb3 [Result "66"] [FEN "2b1rk2/5p2/p1P5/2p2P2/2p5/7B/P7/2KR4 w - - 0 1"] 1. f6 [Result "67"] [FEN "2r5/prkpR1p1/2p1ppK1/P1p1N1B1/P1P1P3/8/8/8 w - - 0 1"] 1. Bf4 [Result "68"] [FEN "rk1b4/p2p2p1/1P6/2R2P2/8/2K5/8/5B2 w - - 0 1"] 1. Rc8 [Result "69"] [FEN "3k4/4pp2/n2n4/5BN1/3N4/b7/4K3/8 w - - 0 1"] 1. Nxf7 [Result "70"] [FEN "4b3/8/1P6/3K4/6p1/5pP1/5P1B/7k w - - 0 1"] 1. b7 Bb5 2. b8R [Result "71"] [FEN "8/5pKN/5Pp1/5kP1/8/Bb6/8/7q w - - 0 1"] 1. Bc5 {or any move} Qxh7+ [Result "72"] [FEN "8/p5p1/1pP3p1/p5p1/k3p3/4p3/K7/8 w - - 0 1"] 1. c7 {win} [Result "73"] [FEN "q7/8/2p5/B2p2pp/5pp1/2N3k1/6P1/7K w - - 0 1"] 1. Ne4 Kh4 2. Ng3 fxg3 3. Bb6 [Result "74"] [FEN "q7/7R/k7/1p6/1p6/1P2B3/7K/8 w - - 0 1"] 1. Bd4 {win} [Result "75"] [FEN "1q1r3k/3P1pp1/ppBR1n1p/4Q2P/P4P2/8/5PK1/8 w - - 0 1"] 1. Rxf6 [Result "76"] [FEN "1r3q1k/2N2P1p/6pQ/4p3/7p/n6P/3B4/7K w - - 0 1"] 1. Qf4 [Result "77"] [FEN "5nr1/2Pp2pk/3Pp1p1/4P1P1/6P1/5K2/8/7n w - - 0 1"] 1. c8N [Result "78"] [FEN "2K3k1/1p6/R3p1p1/1rB1P1P1/8/8/1Pb5/8 w - - 0 1"] 1. Rc6 [Result "79"] [FEN "4q3/2r1r2p/3P3P/1p6/kP6/Pp6/1P6/KB2R3 w - - 0 1"] 1. Rxe7 Qxe7 {or 1... Rxe7 2. dxe7} 2. dxc7 [Result "80"] [FEN "3k4/8/7p/2p1p1pP/1pPpPpP1/1P1P1P2/N7/2K5 w - - 0 1"] {Na2->h4} [Result "81"] [FEN "8/8/8/1k3p2/p1p1pPp1/PpPpP1Pp/1P1P3P/QNK2NRR w - - 0 1"] {win} [Result "82"] [FEN "4b1k1/P4pPp/1R3P1P/2r5/8/1P6/1K6/8 w - - 0 1"] 1. a8B [Result "83"] [FEN "4N2k/4PB1p/7P/B1p5/2P5/3q2Pp/1P3P1K/2r5 w - - 0 1"] 1. Bc3 Rxc3 2. Nc7 [Result "84"] [FEN "1k6/3p4/1B6/4Pp1p/1p5R/1p4p1/pP3n2/K6n w - - 0 1"] 1. Rxh1 Nxh1 2. e6 dxe6 3. Bc7 [Result "85"] [FEN "N3kb2/pq4p1/4B1P1/1p1P2B1/p7/3P4/2P5/2K5 w - - 0 1"] 1. Bf7 Kd7 2. Be6 Kd6 3. Bf4 Kc5 4. Be3 Kb4 5. Bd2 Ka3 6. Kb1 [Result "86"] [FEN "8/1B3b1p/7P/p2p4/P2pp1kp/Q7/1N1Pq2P/7K w - - 0 1"] 1. Qh3 [Result "87"] [FEN "1B2b2k/2N1qr2/4n2p/4p1PQ/1r2N3/1p6/7P/2KB4 w - - 0 1"] 1. Nd5 Rc4 2. Kb1 Rc1 3. Kb2 Rf2 4. Nf2 Rb1 5. Kb1 Qh7 6. g6 Bg6 7. Bc2 bxc2 8. Kc1 Bxh5 9. Be5 Ng7 10. Ne7 [Result "88"] [FEN "2k4N/Q1np4/2p2Bpp/1p1P4/pPP1p2P/P7/7q/1K6 w - - 0 1"] 1. Nf7 Qg3 2. Qxc7 {win} [Result "89"] [FEN "8/4nk2/1p3p2/2rp2pp/1P1R1N1P/6P1/3KPP2/8 b - - 0 1"] {avoid 1... Rb5} [Result "90"] [FEN "5BK1/5p1N/5Pp1/6Pk/8/1b6/8/7q b - - 0 1"] 1... Qa8 2.Kg7 Qd5 {or Qg2 and next Qxg5} [Result "91"] [FEN "2b5/1pr4p/3bp1pk/1p6/1PpN2PP/K1P1n3/P3N1R1/3R4 w - - 0 1"] 1. Nxb5 Nxd1 2. Nd6 b5 3. g5 Kh5 4. Nxc8 Rxc8 5. Nf4 Kxh4 6. Nxg6 [Result "92"] [FEN "8/1p1pNpbk/q2P4/p3p2K/PP2N3/4P1P1/3P4/8 w - - 0 1"] 1. b5 Qb6 2. Nc8 [Result "93"] [FEN "1rr5/6pk/7p/8/8/7P/1Pb1RRPK/8 b - - 0 1"] {avoid Rxb2} [Result "94"] [FEN "6Q1/8/8/8/8/7k/ppp1p3/brrbK3 w - - 0 1"] 1. Qg1 {win} [Result "95"] [FEN "1B1K1k2/4N2p/3pP1pP/6p1/p7/3N2b1/2r2p2/8 w - - 0 1"] 1. Nc6 {win} [Result "96"] [FEN "8/4Pr1N/8/6PN/8/3K1ppp/4prkb/4Bbnn w - - 0 1"] 1. Nf8 {win} [Result "97"] [FEN "8/b7/3p2b1/5p1n/5Pk1/4P1p1/B5P1/R4K2 w - - 0 1"] 1. Ke2 [Result "98"] [FEN "5K2/8/5B2/p7/8/p4p2/pn1PpPp1/kb2R3 w - - 0 1"] 1. Bh8 a4 2. Kg7 {win} [Result "99"] [FEN "8/8/8/3P1pp1/2K5/B3kP2/4N3/3b1n1n w - - 0 1"] 1. Nd4 [/pgn]
Click the square h8 on chessboard to get help !

[lech]

Hi Marek,

...
Grasemann Herbert - 36

is wrong, it's Van Breukelen=G Schakend Nederland#2207

Thanks and sorry. It is my stupid bug (not one)!
The full and last version (from 1 to 100) of the test is:
[pgn] [Result "1"] [FEN "rk6/p1r3p1/P3B1Kp/1p2B3/8/8/8/8 w - - 0 1"] 1. Bd7 {win} [Result "2"] [FEN "7k/6rp/6pN/1r4P1/3B4/8/8/K7 b - - 0 1"] 1... Rxg5 [Result "3"] [FEN "1B1k4/3p4/1Kp5/PpP2p2/1PqP1P2/8/1P6/8 w - - 0 1"] 1. a6 {win} [Result "4"] [FEN "3N2r1/2K1p3/4Pk2/8/Bp5b/8/2P5/8 b - - 0 1"] 1... Bg3 2. Kd7 {or Kc8} Rxd8 [Result "5"] [FEN "8/7p/5P1k/1p5P/5p2/2p1p3/P1P1P1P1/1K3Nb1 w - - 0 1"] 1. Ng3 [Result "6"] [FEN "6q1/PpB5/k7/P6K/6n1/1P4p1/5p2/1B3N1N w - - 0 1"] 1. a8Q {or a8R} [Result "7"] [FEN "6k1/6p1/4Rb1p/p7/rp2P1N1/2P3P1/1P5P/6K1 b - - 0 1"] 1... Bxc3 [Result "8"] [FEN "8/8/p2k1p2/1p1p3p/1P1P3p/P3NPP1/5K2/1b6 w - - 0 1"] 1. Ng2 [Result "9"] [FEN "2k5/p7/Pp1p1b2/1P1P1p2/2P2P1p/3K3P/5B2/8 w - - 0 1"] 1. c5 [Result "10"] [FEN "1n6/Pp1p1p1p/1P1P1P1P/4K3/2p5/p7/rpp1P3/qkb1R3 w - - 0 1"] 1. axb8N {win} [Result "11"] [FEN "1N4K1/1pp1p3/7k/2r3pP/p2pp1P1/P6N/8/2B5 w - - 0 1"] 1. Nc6 [Result "12"] [FEN "5K2/k4p1p/5p1p/1p3p2/bP6/1p6/1P5p/7B w - - 0 1"] 1. Ke8 {or Ke7 win} [Result "13"] [FEN "k1b5/1p1p1p1p/1PpPpP2/2B5/8/2p1p2P/2PbP3/3K4 w - - 0 1"] 1. Bd4 {win} [Result "14"] [FEN "8/8/8/8/1kB1q3/8/1PRb4/1K6 b - - 0 1"] 1... Qh1 2. Ka2 Qa8 3.Kb1 Qe4 {or other way to get the start position for white: 8/8/8/8/1kB1q3/8/1PRb4/1K6 w - - 0 1} [Result "15"] [FEN "8/2N4r/1p3pkp/8/5K1p/2P4N/P3Bn2/8 w - - 0 1"] 1. Bh5 [Result "16"] [FEN "4k1rr/1R1R3p/8/8/8/2K5/7P/8 w k - 0 1"] 1. Rd2 [Result "17"] [FEN "5k2/4bp2/2B3p1/1P4p1/3R4/3P2PP/2r2PK1/8 b - - 0 1"] 1... Rxf2 [Result "18"] [FEN "1b6/2p5/1kB5/1PN5/8/3K4/8/q7 w - - 0 1"] 1. Nb3 [Result "19"] [FEN "N7/8/2KQ2rp/6k1/3p3p/2p4P/4PP2/5N2 w - - 0 1"] 1. f4 [Result "20"] [FEN "2br4/r2pp3/8/1p1p1kN1/pP1P4/2P3R1/PP3PP1/2K5 w - - 0 1"] 1. Nf7 Re8 2. Nd6 [Result "21"] [FEN "8/8/4B3/6p1/7k/8/4pPKP/8 w - - 0 1"] 1. Bg4 [Result "22"] [FEN "r7/7k/5R2/p3p3/Pp1pPp2/1PpP1Pp1/K1P3P1/8 w - - 0 1"] 1. Kb1 Kg7 {or 1... Rh8 2. Rf8} 2. Rh6 [Result "23"] [FEN "1K3kB1/8/6p1/7R/8/4b3/8/6n1 w - - 0 1"] 1. Rh8 Kg7 2. Bh7 [Result "24"] [FEN "8/8/R7/1b4k1/5p2/1B3r2/7P/7K w - - 0 1"] 1. h4 Kxh4 2. Rh6 Kg5 3. Rh5 [Result "25"] [FEN "7Q/4p3/4p3/p1p1P3/Pp2P3/3Kp3/p1PbP3/kN6 w - - 0 1"] 1. Na3 bxa3 2. Qh1 Kb2 3. Qa1 Kxa1 4. c4 [Result "26"] [FEN "7r/K7/5k1n/p3p3/Pp1pPp1p/1PpP1PpP/2P3P1/N1RR1B2 b - - 0 1"] {win} [Result "27"] [FEN "q7/b1p5/kp1p4/p2PN3/PPP5/1K6/8/5B2 w - - 0 1"] 1. c5 Kb7 2. Ba6 {win} [Result "28"] [FEN "1k1n4/1p1b1p2/1Bp1pPp1/1PP1P3/8/6P1/8/1K6 w - - 0 1"] 1. Bc7 {win} [Result "29"] [FEN "4q1kr/p6p/1prQPppB/4n3/4P3/2P5/PP2B2P/R5K1 w - - 0 1"] 1. Qxe5 {win} [Result "30"] [FEN "q1b4n/1p1pKp2/1p1p1Pp1/1P1P2Pp/2P4P/8/7R/1N1k4 w - - 0 1"] 1. Ra2 {win} [Result "31"] [FEN "3k4/2pq3p/pp5R/4P3/P6P/2PN4/1PN3K1/8 w - - 0 1"] 1. Nd4 {win} [Result "32"] [FEN "8/7p/6pP/p4pP1/3BpP2/p1KpP3/pn1N4/k7 w - - 0 1"] 1. Bh8 {win} [Result "33"] [FEN "8/6p1/p7/rp1K2p1/kb3pP1/2p2p1b/P1Np1P2/3N2R1 w - - 0 1"] 1. Ke6 {or Ke4 win} [Result "34"] [FEN "B7/p1p5/k2p4/p3p3/P1Nb1p2/6p1/7p/4K3 w - - 0 1"] {Ke1->h3->c8} [Result "35"] [FEN "1qN5/b1pB4/1pP2k2/pP3P2/P1P5/8/8/K7 w - - 0 1"] {Ka1->h5->d8} [Result "36"] [FEN "8/3P3k/n2K3p/2p3n1/1b4N1/2p1p1P1/8/3B4 w - - 0 1"] 1. Nf6 [Result "37"] [FEN "8/5K2/3p3p/3p3P/pp1P4/rkb1R3/p1p3P1/n1B2B2 w - - 0 1"] 1. Rd3 {win} [Result "38"] [FEN "6bn/p4p1k/rp3Pp1/rp2BBP1/1p6/pK6/P2P4/8 w - - 0 1"] 1. Bc8 {win} [Result "39"] [FEN "qn6/b1Kp3p/p1pB3p/p7/P1NkP3/2pP4/2B5/8 w - - 0 1"] 1. Bf4 {or Kc8} [Result "40"] [FEN "8/P7/4k3/8/5P2/4Bq2/5P2/5K2 b - - 0 1"] 1... Kf5 [Result "41"] [FEN "8/6kP/1p6/p7/Pr6/K2B4/8/8 b - - 0 1"] {Rb4->h4 and next Kg7->e5} [Result "42"] [FEN "8/8/2b1N3/5p2/3B4/2K5/6kp/R7 w - - 0 1"] 1. Rh1 [Result "43"] [FEN "8/8/4kpp1/3p1b2/p6P/2B5/6P1/6K1 b - - 0 1"] 1... Bh3 [Result "44"] [FEN "5rk1/5ppp/p1Q1p3/1R6/q7/4b1P1/P2RPP1P/6K1 w - - 0 1"] 1. Rd8 {win} [Result "45"] [FEN "r7/1b1r4/k1p1p1p1/1p1pPpPp/p1PP1P1P/PP1K4/8/4Q3 w - - 0 1"] 1. Qa5 [Result "46"] [FEN "3B4/1r2p3/r2p1p2/bkp1P1p1/1p1P1PPp/p1P4P/PPB1K3/8 w - - 0 1"] 1. Ba4 [Result "47"] [FEN "2k5/2p5/1q1p4/pPpPp1pp/N1P1Pp2/P4PbP/KQ4P1/8 w - - 0 1"] {avoid Nxb6} [Result "48"] [FEN "1r6/4k3/r2p2p1/2pR1p1p/2P1pP1P/pPK1P1P1/P7/1B6 b - - 0 1"] 1... Rxb3 [Result "49"] [FEN "8/5k2/6p1/4BP1p/6p1/p1p3PP/6P1/1n2K2R b K - 0 1"] 1... a2 2. fxg6 Kg8 [Result "50"] [FEN "8/3k1b1r/2p1p1p1/rpPpPpPp/p2P1P1P/P2K4/8/4B3 w - - 0 1"] 1. Bb4 [Result "51"] [FEN "7b/p1p1p3/P1PpPp2/2nP1kpr/5P1p/p3KBPP/P7/8 w - - 0 1"] 1. Be4 [Result "52"] [FEN "7r/p1p1p1pk/3pPp1p/2pP1PP1/P1P4P/1K6/P6B/8 w - - 0 1"] 1. g6 Kg8 2. a5 a6 3. Bxd6 cxd6 4. h5 {or 2. Bxd6 cxd6 3. h5} [Result "53"] [FEN "8/1p1q1k2/1Pp5/p1Pp4/P2Pp1p1/4PpPp/1N3P1P/3B2K1 w - - 0 1"] 1. Bb3 Qc8 2. Nd1 Qa8 3. Bc4 [Result "54"] [FEN "8/8/2pk4/8/p1p3B1/PpP5/1P6/r1NK4 w - - 0 1"] 1. Bf5 Ra2 2. Nxa2 bxa2 3. Kc1 a1Q 4. Bb1 [Result "55"] [FEN "1R3b2/5ppQ/6Pp/6PP/R6P/P7/7K/2q1k3 w - - 0 1"] 1. Rb1 Qxb1 2. gxf7 [Result "56"] [FEN "Kn6/8/8/3R2PB/8/2p2NP1/1q6/2k5 w - - 0 1"] 1. Rd1 [Result "57"] [FEN "1B3B1B/2B5/p6B/8/8/8/8/1k1K4 w - - 0 1"] 1. Bce5 [Result "58"] [FEN "4kr2/5p1K/3p1Q2/1p4P1/4P3/1PP5/7b/8 w - - 0 1"] 1. Kh6 {win} [Result "59"] [FEN "6R1/8/2pB3k/2P4p/5p1q/5P2/4P1K1/8 w - - 0 1"] 1. Bf8 {win} [Result "60"] [FEN "n2Bqk2/5p1p/Q4KP1/p7/8/8/8/8 w - - 0 1"] 1. Qc8 Kg8 2. Bc7 {win} [Result "61"] [FEN "8/5p2/8/8/p7/rpK4p/1p3ppr/bQ1N1bqk w - - 0 1"] 1. Kb4 {or Kd4 win} [Result "62"] [FEN "8/8/7p/3KNN1k/2p4p/8/3P2p1/8 w - - 0 1"] 1. Kc6 [Result "63"] [FEN "1R6/pPk1r3/2p5/K7/8/2B1b3/8/8 w - - 0 1"] 1. Ka6 [Result "64"] [FEN "8/p7/qkpN1p2/8/1B1P4/PP3K2/5P2/8 w - - 0 1"] 1. Ba5 {win} [Result "65"] [FEN "2N5/p7/P7/8/1KPp1p1p/3p1Bpp/3P2rq/R5bk w - - 0 1"] 1. Nb6 {win} [Result "66"] [FEN "5kN1/3p1q2/5P2/5PP1/2pK4/1p1R4/1P6/8 w - - 0 1"] 1. Rxb3 [Result "67"] [FEN "2b1rk2/5p2/p1P5/2p2P2/2p5/7B/P7/2KR4 w - - 0 1"] 1. f6 [Result "68"] [FEN "2r5/prkpR1p1/2p1ppK1/P1p1N1B1/P1P1P3/8/8/8 w - - 0 1"] 1. Bf4 [Result "69"] [FEN "rk1b4/p2p2p1/1P6/2R2P2/8/2K5/8/5B2 w - - 0 1"] 1. Rc8 [Result "70"] [FEN "3k4/4pp2/n2n4/5BN1/3N4/b7/4K3/8 w - - 0 1"] 1. Nxf7 [Result "71"] [FEN "4b3/8/1P6/3K4/6p1/5pP1/5P1B/7k w - - 0 1"] 1. b7 Bb5 2. b8R [Result "72"] [FEN "8/5pKN/5Pp1/5kP1/8/Bb6/8/7q w - - 0 1"] 1. Bc5 {or any move} Qxh7+ [Result "73"] [FEN "8/p5p1/1pP3p1/p5p1/k3p3/4p3/K7/8 w - - 0 1"] 1. c7 {win} [Result "74"] [FEN "q7/8/2p5/B2p2pp/5pp1/2N3k1/6P1/7K w - - 0 1"] 1. Ne4 Kh4 2. Ng3 fxg3 3. Bb6 [Result "75"] [FEN "q7/7R/k7/1p6/1p6/1P2B3/7K/8 w - - 0 1"] 1. Bd4 {win} [Result "76"] [FEN "1q1r3k/3P1pp1/ppBR1n1p/4Q2P/P4P2/8/5PK1/8 w - - 0 1"] 1. Rxf6 [Result "77"] [FEN "1r3q1k/2N2P1p/6pQ/4p3/7p/n6P/3B4/7K w - - 0 1"] 1. Qf4 [Result "78"] [FEN "5nr1/2Pp2pk/3Pp1p1/4P1P1/6P1/5K2/8/7n w - - 0 1"] 1. c8N [Result "79"] [FEN "2K3k1/1p6/R3p1p1/1rB1P1P1/8/8/1Pb5/8 w - - 0 1"] 1. Rc6 [Result "80"] [FEN "4q3/2r1r2p/3P3P/1p6/kP6/Pp6/1P6/KB2R3 w - - 0 1"] 1. Rxe7 Qxe7 {or 1... Rxe7 2. dxe7} 2. dxc7 [Result "81"] [FEN "3k4/8/7p/2p1p1pP/1pPpPpP1/1P1P1P2/N7/2K5 w - - 0 1"] {Na2->h4} [Result "82"] [FEN "8/8/8/1k3p2/p1p1pPp1/PpPpP1Pp/1P1P3P/QNK2NRR w - - 0 1"] {win} [Result "83"] [FEN "4b1k1/P4pPp/1R3P1P/2r5/8/1P6/1K6/8 w - - 0 1"] 1. a8B [Result "84"] [FEN "4N2k/4PB1p/7P/B1p5/2P5/3q2Pp/1P3P1K/2r5 w - - 0 1"] 1. Bc3 Rxc3 2. Nc7 [Result "85"] [FEN "1k6/3p4/1B6/4Pp1p/1p5R/1p4p1/pP3n2/K6n w - - 0 1"] 1. Rxh1 Nxh1 2. e6 dxe6 3. Bc7 [Result "86"] [FEN "N3kb2/pq4p1/4B1P1/1p1P2B1/p7/3P4/2P5/2K5 w - - 0 1"] 1. Bf7 Kd7 2. Be6 Kd6 3. Bf4 Kc5 4. Be3 Kb4 5. Bd2 Ka3 6. Kb1 [Result "87"] [FEN "8/1B3b1p/7P/p2p4/P2pp1kp/Q7/1N1Pq2P/7K w - - 0 1"] 1. Qh3 [Result "88"] [FEN "1B2b2k/2N1qr2/4n2p/4p1PQ/1r2N3/1p6/7P/2KB4 w - - 0 1"] 1. Nd5 Rc4 2. Kb1 Rc1 3. Kb2 Rf2 4. Nf2 Rb1 5. Kb1 Qh7 6. g6 Bg6 7. Bc2 bxc2 8. Kc1 Bxh5 9. Be5 Ng7 10. Ne7 [Result "89"] [FEN "2k4N/Q1np4/2p2Bpp/1p1P4/pPP1p2P/P7/7q/1K6 w - - 0 1"] 1. Nf7 Qg3 2. Qxc7 {win} [Result "90"] [FEN "8/4nk2/1p3p2/2rp2pp/1P1R1N1P/6P1/3KPP2/8 b - - 0 1"] {avoid 1... Rb5} [Result "91"] [FEN "5BK1/5p1N/5Pp1/6Pk/8/1b6/8/7q b - - 0 1"] 1... Qa8 2.Kg7 Qd5 {or Qg2 and next Qxg5} [Result "92"] [FEN "2b5/1pr4p/3bp1pk/1p6/1PpN2PP/K1P1n3/P3N1R1/3R4 w - - 0 1"] 1. Nxb5 Nxd1 2. Nd6 b5 3. g5 Kh5 4. Nxc8 Rxc8 5. Nf4 Kxh4 6. Nxg6 [Result "93"] [FEN "8/1p1pNpbk/q2P4/p3p2K/PP2N3/4P1P1/3P4/8 w - - 0 1"] 1. b5 Qb6 2. Nc8 [Result "94"] [FEN "1rr5/6pk/7p/8/8/7P/1Pb1RRPK/8 b - - 0 1"] {avoid Rxb2} [Result "95"] [FEN "6Q1/8/8/8/8/7k/ppp1p3/brrbK3 w - - 0 1"] 1. Qg1 {win} [Result "96"] [FEN "1B1K1k2/4N2p/3pP1pP/6p1/p7/3N2b1/2r2p2/8 w - - 0 1"] 1. Nc6 {win} [Result "97"] [FEN "8/4Pr1N/8/6PN/8/3K1ppp/4prkb/4Bbnn w - - 0 1"] 1. Nf8 {win} [Result "98"] [FEN "8/b7/3p2b1/5p1n/5Pk1/4P1p1/B5P1/R4K2 w - - 0 1"] 1. Ke2 [Result "99"] [FEN "5K2/8/5B2/p7/8/p4p2/pn1PpPp1/kb2R3 w - - 0 1"] 1. Bh8 a4 2. Kg7 {win} [Result "100"] [FEN "8/8/8/3P1pp1/2K5/B3kP2/4N3/3b1n1n w - - 0 1"] 1. Nd4 [/pgn]

The authors of studies selected to the "IQ" test:

by YACPDB:

Blathy Otto - 3, 12, 13
Benko Pal - 16, 75
Hasek Josef - 22, 28
Gurvich Abram - 23
Kasparyan Genrikh - 24
Neghina Mihai - 27
Grasemann Herbert - 37
Popov Georgy & Hanyan Aleksei - 39 (part of study)
Rudolph William - 46
Troitzky Aleksei - 57
Reti Richard - 58
Matous Mario - 60
Behting Carl - 62
Klyatskin Mikhail - 66
Kubbel Karl - 69
Novomesky Daniel - 73
Lazard Frederic - 74
Marwitz Jan - 79
Lamford Paul - 82
Simkhovich Froim - 86

by other sources:

Solovyov Y. - 6
Babic M. - 9
Neghina Mihai - 11, 31, 84, 87, 89, 92
Simkhovich Froim - 20
van Breukelen Gijs - 36
Hoch Yehuda & Aloni Hillel - 55
Troitzky Aleksei - 59
Smyslov Vasily - 67
Bondarenko F. & Kuznetsov A. - 68
Surya Sekhar Ganguly - 81
Stavrietsky Aleksandr - 88
Kazantsev A. - 93
Ryabinin Nikolaj - 96
Neghina Mihai & Rusz Arpad- 97
Kamody Mario & Neghina Mihai - 98
Fekete Zoltan - 99 (part of study)