MESON Chess Problem Database
Problem Display
PID: 56979 (8/7B/P1PN1p1R/3kpRP1/1Qpn2K1/2P5/1N5B/8 w - - 0 1)
Valuska, Jan
1st Prize, Spartakiad, 1965
#2
12 + 5
| 3772 | FIDE Album (1965-1967) | 1976 |
SOLUTION
- SOUND
- Sets
- 1...Ke6
- 2.Rxe5#
- 1...Sxc6
- 2.Bg8#
- 1...fxg5
- 2.Qxc4#
- 1...Ke6
- Tries
- 1.Sb7?
- 1...Ke4
- 2.Rxe5#
- 1...Ke6
- 2.Bg8#
- 1...Sxf5
- 2.Qxc4#
- 1...Sxc6
- 2.Qxc4#
- 1...fxg5
- 2.Rxe5#
- 1...Sc2
- 2.Qxc4#
- 1...Se2
- 2.Qxc4#
- 1...Sb3
- 2.Qxc4#
- 1...Sf3
- 2.Qxc4#
- 1...Sb5
- 2.Qxc4#
- 1...Se6
- 2.Qxc4#
- 1...Kxc6!
- 1...Ke4
- 1.Sc8?
- 1...Ke4
- 2.Rxe5#
- 1...Ke6
- 2.Bg8#
- 2.Qxc4#
- 1...Sxf5
- 2.Qxc4#
- 1...Sxc6
- 2.Qxc4#
- 1...fxg5
- 2.Rxe5#
- 1...Sc2
- 2.Qxc4#
- 1...Se2
- 2.Qxc4#
- 1...Sb3
- 2.Qxc4#
- 1...Sf3
- 2.Qxc4#
- 1...Sb5
- 2.Qxc4#
- 1...Se6
- 2.Qxc4#
- 1...Kxc6!
- 1...Ke4
- 1.Se8?
- 1...Ke4
- 2.Rxe5#
- 1...Ke6
- 2.Bg8#
- 1...Sxf5
- 2.Qxc4#
- 1...Sxc6
- 2.Qxc4#
- 1...fxg5
- 2.Rxe5#
- 1...Sc2
- 2.Qxc4#
- 1...Se2
- 2.Qxc4#
- 1...Sb3
- 2.Qxc4#
- 1...Sf3
- 2.Qxc4#
- 1...Sb5
- 2.Qxc4#
- 1...Se6
- 2.Qxc4#
- 1...Kxc6!
- 1...Ke4
- 1.Rxe5+?
- 1...fxe5
- 2.Be4#
- 2.Qxc4#
- 1...Kxc6!
- 1...fxe5
- 1.Rfxf6?
- threat
- 2.Be4#
- 2.Qxc4#
- 1...Sf5
- 2.Qxc4#
- 2.Qb5#
- 1...Se6
- 2.Be4#
- 1...e4
- 2.Bxe4#
- 2.Qxc4#
- 1...Kxc6!
- threat
- 1.Qc5+?
- 1...Ke6
- 2.Rxe5#
- 2.Qxe5#
- 1...Kxc5!
- 1...Ke6
- 1.Sb7?
- Keys
- 1.Se4!
- 1...Kxe4
- 2.Rxe5#
- 1...Kxc6
- 2.Qb7#
- 1...Ke6
- 2.Bg8#
- 1...Sxf5
- 2.Qxc4#
- 1...Sxc6
- 2.Qxc4#
- 1...fxg5
- 2.Rxe5#
- 1...Sc2
- 2.Qxc4#
- 1...Se2
- 2.Qxc4#
- 1...Sb3
- 2.Qxc4#
- 1...Sf3
- 2.Qxc4#
- 1...Sb5
- 2.Qxc4#
- 1...Se6
- 2.Qxc4#
- 1...Kxe4
- 1.Se4!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 3
- ADDED MATES = 9
- REMOVED MATES = 0
- Sets
- K(c);N_SPINP(d),P_SPINP(e),S_FLIGHT::R1(F),XP(d)
- S(b);N_GUARD,SBLOCK,XP(I)::B(L)
- P(e);XP(G)::QAB1(D),XP(a)
- Tries
- Try
- S(J);
- Vars
- K(c);N_SPINP(d),S_FLIGHT::B(L)+R(F),DCHECK,XP(d)
- K(c);N_SPINP(d),P_SPINP(e),S_FLIGHT::B(L)
- S(b);N_SPINP(d),XR(F)::QAB1(D),XP(a)
- S(b);XP(I)::QAB1(D),XP(a)
- P(e);N_GUARD,XP(G)::R1(F),XP(d)
- S(b);::QAB1(D),XP(a)
- S(b);SBLOCK::QAB1(D),XP(a)
- Refutation
- K(c);N_SPINP(d),P_SPINP(e),S_FLIGHT,XP(I)
- Try
- S(J);
- Vars
- K(c);N_SPINP(d),S_FLIGHT::B(L)+R(F),DCHECK,XP(d)
- S(b);N_SPINP(d),XR(F)::QAB1(D),XP(a)
- S(b);XP(I)::QAB1(D),XP(a)
- P(e);N_GUARD,XP(G)::R1(F),XP(d)
- S(b);::QAB1(D),XP(a)
- S(b);SBLOCK::QAB1(D),XP(a)
- Refutation
- K(c);N_SPINP(d),P_SPINP(e),S_FLIGHT,XP(I)
- Try
- S(J);
- Vars
- K(c);N_SPINP(d),S_FLIGHT::B(L)+R(F),DCHECK,XP(d)
- K(c);N_SPINP(d),P_SPINP(e),S_FLIGHT::B(L)
- S(b);N_SPINP(d),XR(F)::QAB1(D),XP(a)
- S(b);XP(I)::QAB1(D),XP(a)
- P(e);N_GUARD,XP(G)::R1(F),XP(d)
- S(b);::QAB1(D),XP(a)
- S(b);SBLOCK::QAB1(D),XP(a)
- Refutation
- K(c);N_SPINP(d),P_SPINP(e),S_FLIGHT,XP(I)
- Try
- R(F);CHECK,XP(d)
- Refutation
- K(c);S_FLIGHT,XP(I)
- Try
- R(F);N_PINP(d),XP(e)
- Threat
- DUALS(2)
- Vars
- S(b);::B(L)
- Refutation
- K(c);S_FLIGHT,XP(I)
- Try
- Q(D);CHECK
- Refutation
- K(c);P-FLIGHT,XQ(D)
- Try
- Actual
- S(J);
- Vars
- K(c);N_SPINP(d),S_FLIGHT,XS(J)::B(L)+R(F),DCHECK,XP(d)
- K(c);N_SPINP(d),OGATEB,P_SPINP(e),S_FLIGHT,XP(I)::QAB1(D)
- K(c);N_SPINP(d),P_SPINP(e),S_FLIGHT::B(L)
- S(b);N_SPINP(d),XR(F)::QAB1(D),XP(a)
- S(b);XP(I)::QAB1(D),XP(a)
- P(e);N_GUARD,XP(G)::R1(F),XP(d)
- S(b);::QAB1(D),XP(a)
- S(b);SBLOCK::QAB1(D),XP(a)
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).