Houdini 5 Refuted A Famous Endgame Study Composed By Gorgiev And Rudenko

A refutation of a famous chess study (1961) composed by Valentin Rudenko and Tigran Gorgiev using chess engine Houdini 5.

1. e8=Q (1. Rxa7 Nf3#) 1… Nf3+ (1…
Rxa8 2. Qe5+ Kc2 3. Qxf4) (1… Rxg7 2. Qe5+ Kc2 3. Qxf4 Rgxg5 4.
Rc8+ Kd1 5. Qd6+ Ke1 6. Rc1+ Kf2 7. Rc2+ e2 8. Qb6+ Kf1 9. Qb1+ Kf2 10. Qb6+
Kf1 11. Qb1=) 2. Qxh5 e2 (2… Nxh5 3. Rb8+ (3.
Rgxa7 e2) 3… Ka2 4. Rgb7 (4. Rxa7 e2) 4… Rxa6 (4… Rxb7 5. axb7 e2 6. Ra8+
Kb1 7. b8=Q+ Kc1) 5. Rb2+ Ka1 6. Rb1+ Ka2 7. R8b2+ Ka3 8. Rb3+ Ka2 9. Rxe3 Kxb1
10. Rxf3) 3. Rb7+ Rxb7 4. Qh8+ Kb3 5. Qg8+ Kb4 6. Qf8+ Kb5 (6… Kc4 7. Rc8+
Kb3 8. Qg8+ Kb2 9. Qh8+ Kb1 10. Rc1+ Kxc1 11. Qc3+ Kd1 12. axb7 e1=Q+ 13. Qxe1+
Kxe1 14. b8=Q) 7. Qe8+ Kb6 8. Qd8+ Kb5 9. Qa5+ Kxa5 10. axb7+ Kb4 11. b8=Q+
Video Icon Attribution: See page for author [CC BY-SA 3.0 (http://creativecommons.org/licenses/by-sa/3.0)], via Wikimedia Commons

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