MESON Chess Problem Database
Problem Display
PID: 161688 (8/R2Np3/1N1pkpP1/4P3/8/1n1Q4/8/b6K w - - 0 1)
Antonov, Yuri Mikhailovich
Birnov MT, 1998
#2
7 + 6
| 15148 | Sadier Collection | 2017 |
SOLUTION
- SOUND
- Sets
- 1...Bxe5
- 2.Sf8#
- 1...dxe5
- 2.Sf8#
- 1...fxe5
- 2.Qh3#
- 1...f5
- 2.Qd5#
- 1...Bxe5
- Tries
- 1.Qe4?
- threat
- 2.Sf8#
- 1...fxe5
- 2.Qg4#
- 1...dxe5!
- threat
- 1.exf6?
- threat
- 2.Qh3#
- 2.Qd5#
- 1...d5
- 2.Qxd5#
- 1...Bd4
- 2.Qh3#
- 1...Be5
- 2.Qh3#
- 1...Sd4
- 2.Qe4#
- 1...exf6!
- threat
- 1.g7?
- threat
- 2.g8Q#
- 2.g8B#
- 1...Bxe5
- 2.g8Q#
- 2.g8B#
- 1...dxe5
- 2.g8Q#
- 2.g8B#
- 1...fxe5
- 2.Qg6#
- 2.g8Q#
- 2.g8B#
- 1...Bb2
- 2.g8Q#
- 2.g8B#
- 1...Bc3
- 2.g8Q#
- 2.g8B#
- 1...Bd4
- 2.g8Q#
- 2.g8B#
- 1...Sc1
- 2.g8Q#
- 2.g8B#
- 1...Sd2
- 2.g8Q#
- 2.g8B#
- 1...Sd4
- 2.g8Q#
- 2.g8B#
- 1...Sa5
- 2.g8Q#
- 2.g8B#
- 1...Sc5
- 2.g8Q#
- 2.g8B#
- 1...d5
- 2.g8Q#
- 2.g8B#
- 1...f5
- 2.Qd5#
- 2.g8Q#
- 2.g8B#
- 1...Kf7!
- threat
- 1.Qe4?
- Keys
- 1.Sd5!
- threat
- 2.Sf4#
- 1...Bxe5
- 2.Sf8#
- 1...dxe5
- 2.Sc7#
- 1...fxe5
- 2.Sf8#
- threat
- 1.Sd5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 0
- REMOVED MATES = 1
- Sets
- B(a);SBLOCK,XP(C)::S(G)
- P(c);SBLOCK,XP(C)::S(G)
- P(e);N_GUARD,XP(C)::QAB(B)
- P(e);SBLOCK::QAB1(B)
- Tries
- Try
- Q(B);
- Threat
- S(G)
- Vars
- P(e);N_GUARD,P_SPINP(e),XP(C)::QAB(B)
- Refutation
- P(c);P_SPINP(c),XP(C)
- Try
- P(C);XP(e)
- Threat
- DUALS(2)
- Vars
- P(c);::QAB1(B),XP(c)
- B(a);::QAB(B)
- S(b);S_CUTB(a)::QAR2(B)
- Refutation
- P(f);XP(C)
- Try
- P(E);
- Threat
- P=Q
- Vars
- B(a);XP(C)::P=Q
- P(c);XP(C)::P=Q
- B(a);::P=Q
- S(b);::P=Q
- P(c);::P=Q
- Refutation
- K(d);S_FLIGHT
- Try
- Actual
- S(D);
- Threat
- S(D)
- Vars
- B(a);SBLOCK,XP(C)::S(G)
- P(c);XP(C)::S(D)
- P(e);SBLOCK,XP(C)::S(G)
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).