MESON Chess Problem Database
Problem Display
PID: 58823 (b2N1RK1/2N5/2B1pPp1/rR1nbkB1/5P2/5Q2/q7/8 w - - 0 1)
Anonymous
Source?, 0000
#2
10 + 8
| 1099 | WCSC | 1980 |
| 5396 | World Chess Solving Championship 1977-1996 | 1997 |
SOLUTION
- SOUND
- Sets
- 1...Bxf4
- 2.Qxf4#
- 1...Bxf6
- 2.Rxf6#
- 1...Sc3
- 2.Qh3#
- 1...Sb4
- 2.Qh3#
- 1...Sxf4
- 2.Qxf4#
- 1...Sb6
- 2.Qh3#
- 1...Sxf6+
- 2.Rxf6#
- 1...Sxc7
- 2.Qh3#
- 1...Se7+
- 2.fxe7#
- 1...Bxf4
- Tries
- 1.Scxe6?
- threat
- 2.Sg7#
- 1...Sxf6+
- 2.Rxf6#
- 1...Se7+
- 2.fxe7#
- 1...Bxf4
- 2.Qxf4#
- 1...Sxf4
- 2.Qxf4#
- 1...Sc3
- 2.Qh3#
- 2.fxe5#
- 1...Se3
- 2.fxe5#
- 1...Sb4
- 2.Qh3#
- 2.fxe5#
- 1...Sb6
- 2.Qh3#
- 2.fxe5#
- 1...Sc7
- 2.Qh3#
- 2.fxe5#
- 1...Ra7!
- threat
- 1.Se8?
- threat
- 2.Sg7#
- 1...Sxf6+
- 2.Rxf6#
- 1...Se7+
- 2.fxe7#
- 1...Bxf4
- 2.Qxf4#
- 1...Sxf4
- 2.Qxf4#
- 1...Ra7!
- threat
- 1.fxe5+?
- 1...Kxe5
- 2.Qf4#
- 1...Sf4
- 2.Qxf4#
- 1...Kxg5!
- 1...Kxe5
- 1.Scxe6?
- Keys
- 1.Sdxe6!
- threat
- 2.Sg7#
- 1...Sxf6+
- 2.Rxf6#
- 1...Se7+
- 2.fxe7#
- 1...Bxf4
- 2.Qxf4#
- 1...Sxf4
- 2.Qxf4#
- 1...Sxc7
- 2.Qh3#
- 1...Sc3
- 2.Qh3#
- 2.fxe5#
- 1...Se3
- 2.fxe5#
- 1...Sb4
- 2.Qh3#
- 2.fxe5#
- 1...Sb6
- 2.Qh3#
- 2.fxe5#
- threat
- 1.Sdxe6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 4
- Sets
- B(d);OGATE,P_SPINB(d),P_SPINS(c),XP(B)::QAR1(A),XB(d)
- B(d);OGATE,P_SPINB(d),P_SPINS(c),XP(F)::R1(I),XB(d)
- S(c);P_SPINB(d)::QAB(A)
- S(c);OGATE,P_SPINB(d),P_SPINS(c),XP(B)::QAR1(A),XS(c)
- S(c);CHECK,OGATE,P_SPINB(d),P_SPINS(c),XP(F)::R1(I),XS(c)
- S(c);P_SPINB(d),XS(G)::QAB(A)
- S(c);CHECK,OGATE,P_SPINB(d)::R(I)+P(F),XS(c)
- Tries
- Try
- S(G);XP(f)
- Threat
- S(G)
- Vars
- S(c);CHECK,OGATE,P_PINS(G),P_SPINB(d),P_SPINS(c),XP(F)::R1(I),XS(c)
- S(c);CHECK,OGATE,P_PINS(G),P_SPINB(d)::R(I)+P(F),XS(c)
- B(d);OGATE,P_SPINB(d),P_SPINS(c),XP(B)::QAR1(A),XB(d)
- S(c);OGATE,P_PINS(G),P_SPINB(d),P_SPINS(c),XP(B)::QAR1(A),XS(c)
- S(c);N_GUARD,P_PINS(G),P_SPINB(d)::QAR(A)+P(B),XB(d)
- Refutation
- R(b);
- Try
- S(G);
- Threat
- S(G)
- Vars
- S(c);CHECK,OGATE,P_SPINB(d),P_SPINS(c),XP(F)::R1(I),XS(c)
- S(c);CHECK,OGATE,P_SPINB(d)::R(I)+P(F),XS(c)
- B(d);OGATE,P_SPINB(d),P_SPINS(c),XP(B)::QAR1(A),XB(d)
- S(c);OGATE,P_SPINB(d),P_SPINS(c),XP(B)::QAR1(A),XS(c)
- Refutation
- R(b);
- Try
- P(B);CHECK,XB(d)
- Vars
- K(e);P-FLIGHT,P_SPINS(c),XP(B)::QAB1(A)
- S(c);N_GUARD,P_SPINS(c)::QAR1(A),XS(c)
- Refutation
- K(e);P-FLIGHT,XB(D)
- Try
- Actual
- S(H);XP(f)
- Threat
- S(H)
- Vars
- S(c);CHECK,OGATE,P_PINS(H),P_SPINB(d),P_SPINS(c),XP(F)::R1(I),XS(c)
- S(c);CHECK,OGATE,P_PINS(H),P_SPINB(d)::R(I)+P(F),XS(c)
- B(d);OGATE,P_SPINB(d),P_SPINS(c),XP(B)::QAR1(A),XB(d)
- S(c);OGATE,P_PINS(H),P_SPINB(d),P_SPINS(c),XP(B)::QAR1(A),XS(c)
- S(c);P_PINS(H),P_SPINB(d),XS(G)::QAB(A)
- S(c);N_GUARD,P_PINS(H),P_SPINB(d)::QAR(A)+P(B),XB(d)
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).