MESON Chess Problem Database
Problem Display
PID: 118369 (8/Q6B/P1PPp2p/6pp/2P2pkP/8/3p1B1R/3Kn1N1 w - - 0 1)
Retter, Yosef
2nd Prize, Spisska Borovicka, 1989
#2
11 + 8
| 702 | Phenix | 1990 |
| 721 | Variantim | 1990 |
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Sc2
- 2.Rg2#
- 1...Sg2
- 2.Rxg2#
- 1...Sd3
- 2.Rg2#
- 1...Sf3
- 2.Rg2#
- 1...f3
- 2.Qd4#
- 1...gxh4
- 2.Qg7#
- 1...e5
- 2.Qd7#
- 1...Sc2
- Tries
- 1.Kxd2?
- 1...gxh4
- 2.Qg7#
- 1...f3
- 2.Qd4#
- 1...Sc2
- 2.Rg2#
- 1...Sg2
- 2.Rxg2#
- 1...Sd3
- 2.Rg2#
- 1...e5
- 2.Qd7#
- 1...Sf3+!
- 1...gxh4
- 1.Bd3?
- 1...gxh4
- 2.Qg7#
- 1...f3
- 2.Qd4#
- 1...Sc2
- 2.Rg2#
- 1...Sg2
- 2.Rxg2#
- 1...Sf3
- 2.Rg2#
- 1...e5
- 2.Qd7#
- 1...Sxd3!
- 1...gxh4
- 1.Be4?
- 1...gxh4
- 2.Qg7#
- 1...Sc2
- 2.Rg2#
- 1...Sg2
- 2.Rxg2#
- 1...Sd3
- 2.Rg2#
- 1...Sf3
- 2.Rg2#
- 1...e5
- 2.Qd7#
- 1...f3!
- 1...gxh4
- 1.Bg6?
- 1...f3
- 2.Qd4#
- 1...Sc2
- 2.Rg2#
- 1...Sg2
- 2.Rxg2#
- 1...Sd3
- 2.Rg2#
- 1...Sf3
- 2.Rg2#
- 1...e5
- 2.Qd7#
- 1...gxh4!
- 1...f3
- 1.Qd4?
- 1...gxh4
- 2.Qg7#
- 1...Sc2
- 2.Rg2#
- 1...Sg2
- 2.Rxg2#
- 1...Sd3
- 2.Rg2#
- 1...Sf3
- 2.Rg2#
- 1...e5!
- 1...gxh4
- 1.Qc5?
- 1...gxh4
- 2.Rxh4#
- 1...f3
- 2.Qd4#
- 1...Sc2
- 2.Rg2#
- 1...Sg2
- 2.Rxg2#
- 1...Sd3
- 2.Rg2#
- 1...Sf3
- 2.Rg2#
- 1...e5!
- 1...gxh4
- 1.Qb8?
- 1...gxh4
- 2.Qg8#
- 1...Sc2
- 2.Rg2#
- 1...Sg2
- 2.Rxg2#
- 1...Sd3
- 2.Rg2#
- 1...Sf3
- 2.Rg2#
- 1...e5
- 2.Qc8#
- 1...f3!
- 1...gxh4
- 1.Qb7?
- 1...gxh4
- 2.Qg7#
- 1...Sc2
- 2.Rg2#
- 1...Sg2
- 2.Rxg2#
- 1...Sd3
- 2.Rg2#
- 1...Sf3
- 2.Rg2#
- 1...e5
- 2.Qc8#
- 2.Qd7#
- 1...f3!
- 1...gxh4
- 1.Qc7?
- 1...gxh4
- 2.Qg7#
- 1...Sc2
- 2.Rg2#
- 1...Sg2
- 2.Rxg2#
- 1...Sd3
- 2.Rg2#
- 1...Sf3
- 2.Rg2#
- 1...e5
- 2.Qd7#
- 2.Qc8#
- 1...f3!
- 1...gxh4
- 1.Qd7?
- threat
- 2.Qxe6#
- 1...gxh4
- 2.Qg7#
- 1...f3!
- threat
- 1.Qe7?
- threat
- 2.Qxe6#
- 1...gxh4
- 2.Rxh4#
- 2.Qxh4#
- 2.Qg7#
- 1...e5
- 2.Qe6#
- 2.Qd7#
- 1...f3!
- threat
- 1.Qf7?
- threat
- 2.Qxe6#
- 1...gxh4
- 2.Qg6#
- 2.Qg8#
- 2.Qg7#
- 1...e5
- 2.Bf5#
- 2.Qe6#
- 2.Qf5#
- 2.Qd7#
- 1...f3!
- threat
- 1.Qa8?
- 1...gxh4
- 2.Qg8#
- 1...Sc2
- 2.Rg2#
- 1...Sg2
- 2.Rxg2#
- 1...Sd3
- 2.Rg2#
- 1...Sf3
- 2.Rg2#
- 1...e5
- 2.Qc8#
- 1...f3!
- 1...gxh4
- 1.c5?
- 1...gxh4
- 2.Qg7#
- 1...Sc2
- 2.Rg2#
- 1...Sg2
- 2.Rxg2#
- 1...Sd3
- 2.Rg2#
- 1...Sf3
- 2.Rg2#
- 1...e5
- 2.Qd7#
- 1...f3!
- 1...gxh4
- 1.c7?
- 1...f3
- 2.Qd4#
- 1...Sc2
- 2.Rg2#
- 1...Sg2
- 2.Rxg2#
- 1...Sd3
- 2.Rg2#
- 1...Sf3
- 2.Rg2#
- 1...e5
- 2.c8Q#
- 2.c8B#
- 1...gxh4!
- 1...f3
- 1.Kxd2?
- Keys
- 1.Qg7!
- 1...f3
- 2.Qd4#
- 1...Sc2
- 2.Rg2#
- 1...Sg2
- 2.Rxg2#
- 1...Sd3
- 2.Rg2#
- 1...Sf3
- 2.Rg2#
- 1...e5
- 2.Qd7#
- 1...f3
- 1.Qg7!
FEATURES
- Static
- TYPE = WAITER
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 1
- Sets
- S(a);N_GUARD::R(D)
- S(a);N_GUARD::R(D),XS(a)
- P(c);OGATEB::QAR(J)
- P(e);OGATEB,XP(F)::QAR(J)
- P(g);OGATEB::QAB(J)
- Tries
- Try
- K(A);P-FLIGHT,XP(b)
- Vars
- P(e);OGATEB,XP(F)::QAR(J)
- P(c);OGATEB::QAR(J)
- S(a);N_GUARD::R(D)
- S(a);N_GUARD::R(D),XS(a)
- P(g);OGATEB::QAB(J)
- Refutation
- S(a);CHECK
- Try
- B(K);
- Vars
- P(e);OGATEB,XP(F)::QAR(J)
- P(c);OGATEB::QAR(J)
- S(a);N_GUARD::R(D)
- S(a);N_GUARD::R(D),XS(a)
- P(g);OGATEB::QAB(J)
- Refutation
- S(a);XB(K)
- Try
- B(K);
- Vars
- P(e);OGATEB,XP(F)::QAR(J)
- S(a);N_GUARD::R(D)
- S(a);N_GUARD::R(D),XS(a)
- P(g);OGATEB::QAB(J)
- Refutation
- P(c);
- Try
- B(K);
- Vars
- P(c);OGATEB::QAR(J)
- S(a);N_GUARD::R(D)
- S(a);N_GUARD::R(D),XS(a)
- P(g);OGATEB::QAB(J)
- Refutation
- P(e);XP(F)
- Try
- Q(J);P_PINP(c)
- Vars
- P(e);OGATEB,XP(F)::QAR(J)
- S(a);N_GUARD::R(D)
- S(a);N_GUARD::R(D),XS(a)
- Refutation
- P(g);
- Try
- Q(J);
- Vars
- P(e);OGATE,XP(F)::R1(D),XP(e)
- P(c);OGATEB::QAR(J)
- S(a);N_GUARD::R(D)
- S(a);N_GUARD::R(D),XS(a)
- Refutation
- P(g);
- Try
- Q(J);
- Vars
- P(e);OGATEB,XP(F)::QAR(J)
- S(a);N_GUARD::R(D)
- S(a);N_GUARD::R(D),XS(a)
- P(g);OGATEB::QAB(J)
- Refutation
- P(c);
- Try
- Q(J);
- Vars
- P(e);OGATEB,XP(F)::QAR(J)
- S(a);N_GUARD::R(D)
- S(a);N_GUARD::R(D),XS(a)
- Refutation
- P(c);
- Try
- Q(J);
- Vars
- P(e);OGATEB,XP(F)::QAR(J)
- S(a);N_GUARD::R(D)
- S(a);N_GUARD::R(D),XS(a)
- Refutation
- P(c);
- Try
- Q(J);P_PINP(g)
- Threat
- QAB(J),XP(g)
- Vars
- P(e);OGATEB,XP(F)::QAR(J)
- Refutation
- P(c);
- Try
- Q(J);
- Threat
- QAB(J),XP(g)
- Refutation
- P(c);
- Try
- Q(J);
- Threat
- QAB(J),XP(g)
- Refutation
- P(c);
- Try
- Q(J);
- Vars
- P(e);OGATEB,XP(F)::QAR(J)
- S(a);N_GUARD::R(D)
- S(a);N_GUARD::R(D),XS(a)
- P(g);OGATEB::QAB(J)
- Refutation
- P(c);
- Try
- P(E);
- Vars
- P(e);OGATEB,XP(F)::QAR(J)
- S(a);N_GUARD::R(D)
- S(a);N_GUARD::R(D),XS(a)
- P(g);OGATEB::QAB(J)
- Refutation
- P(c);
- Try
- P(H);
- Vars
- P(c);OGATEB::QAR(J)
- S(a);N_GUARD::R(D)
- S(a);N_GUARD::R(D),XS(a)
- P(g);::P=Q
- Refutation
- P(e);XP(F)
- Try
- Actual
- Q(J);P_PINP(e)
- Vars
- P(c);OGATEB::QAR(J)
- S(a);N_GUARD::R(D)
- S(a);N_GUARD::R(D),XS(a)
- P(g);OGATEB::QAB(J)
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
CSS/Javascript (jQuery, Bootstrap & DataTables).