MESON Chess Problem Database
Problem Display
PID: 66892 (b1B3K1/6BP/4N1Pr/2Rq1k2/5bR1/5P2/8/8 w - - 0 1)
Caine, Walter Edmund
Chess, 1947
#2
9 + 5
SOLUTION
- SOUND
- Sets
- 1...Qxc5
- 2.Sd4#
- 2.Sxc5#
- 2.Sc7#
- 1...Qe5
- 2.Sd4#
- 2.Sxf4#
- 2.Sc7#
- 2.Sd8#
- 2.Sf8#
- 1...Rxg6
- 2.Rxf4#
- 1...Bh2
- 2.Rg5#
- 1...Bg3
- 2.Rg5#
- 1...Be5
- 2.Rg5#
- 1...Bg5
- 2.Rxg5#
- 1...Bd6
- 2.Rg5#
- 1...Bc7
- 2.Rg5#
- 1...Bb8
- 2.Rg5#
- 1...Qxc5
- Tries
- 1.Kf8?
- threat
- 2.Sd4#
- 2.Sxf4#
- 2.Sc7#
- 2.Sd8#
- 1...Qxc5+
- 2.Sxc5#
- 1...Rxg6
- 2.Sd4#
- 2.Rxf4#
- 1...Bg5
- 2.Sf4#
- 2.Rxg5#
- 1...Bc1
- 2.Sd4#
- 2.Sf4#
- 2.Sc7#
- 2.Sd8#
- 1...Bd2
- 2.Sd4#
- 2.Sf4#
- 2.Sc7#
- 2.Sd8#
- 1...Bh2
- 2.Sd4#
- 2.Sf4#
- 2.Sc7#
- 2.Sd8#
- 2.Rg5#
- 1...Be3
- 2.Sd4#
- 2.Sf4#
- 2.Sc7#
- 2.Sd8#
- 1...Bg3
- 2.Sd4#
- 2.Sf4#
- 2.Sc7#
- 2.Sd8#
- 2.Rg5#
- 1...Be5
- 2.Sd4#
- 2.Rg5#
- 1...Bc7
- 2.Sd4#
- 2.Sf4#
- 2.Sxc7#
- 2.Sd8#
- 2.Rg5#
- 1...Bb8
- 2.Sd4#
- 2.Sf4#
- 2.Sc7#
- 2.Sd8#
- 2.Rg5#
- 1...Bc6
- 2.Sd4#
- 1...Bb7
- 2.Sd4#
- 1...Bd6+!
- threat
- 1.Kh8?
- threat
- 2.Sd4#
- 2.Sxf4#
- 2.Sc7#
- 2.Sd8#
- 2.Sf8#
- 1...Qxc5
- 2.Sd4#
- 2.Sxc5#
- 2.Sc7#
- 1...Rxg6
- 2.Sd4#
- 2.Rxf4#
- 1...Bg5
- 2.Sf4#
- 2.Sf8#
- 2.Rxg5#
- 1...Bc1
- 2.Sd4#
- 2.Sf4#
- 2.Sc7#
- 2.Sd8#
- 2.Sf8#
- 1...Bd2
- 2.Sd4#
- 2.Sf4#
- 2.Sc7#
- 2.Sd8#
- 2.Sf8#
- 1...Bh2
- 2.Sd4#
- 2.Sf4#
- 2.Sc7#
- 2.Sd8#
- 2.Sf8#
- 2.Rg5#
- 1...Be3
- 2.Sd4#
- 2.Sf4#
- 2.Sc7#
- 2.Sd8#
- 2.Sf8#
- 1...Bg3
- 2.Sd4#
- 2.Sf4#
- 2.Sc7#
- 2.Sd8#
- 2.Sf8#
- 2.Rg5#
- 1...Be5
- 2.Sd4#
- 2.Rg5#
- 1...Bd6
- 2.Sd4#
- 2.Sf4#
- 2.Sc7#
- 2.Sd8#
- 2.Sf8#
- 2.Rg5#
- 1...Bc7
- 2.Sd4#
- 2.Sf4#
- 2.Sxc7#
- 2.Sd8#
- 2.Sf8#
- 2.Rg5#
- 1...Bb8
- 2.Sd4#
- 2.Sf4#
- 2.Sc7#
- 2.Sd8#
- 2.Sf8#
- 2.Rg5#
- 1...Bc6
- 2.Sd4#
- 1...Bb7
- 2.Sd4#
- 1...Rxh7+!
- threat
- 1.Rxd5+?
- 1...Be5
- 2.Sd4#
- 2.Sf4#
- 2.Sc5#
- 2.Sc7#
- 2.Sd8#
- 2.Sf8#
- 2.Rg5#
- 2.Rxe5#
- 1...Bxd5!
- 1...Be5
- 1.Kf8?
- Keys
- 1.Rc7!
- threat
- 2.Rf7#
- 1...Qd8+
- 2.Sxd8#
- 1...Qxf3
- 2.Sc5#
- 1...Rxg6
- 2.Rxf4#
- 1...Bxc7
- 2.Rg5#
- 1...Qd7
- 2.Sd4#
- 1...Bg5
- 2.Rxg5#
- 1...Qb7
- 2.Sd4#
- 1...Qd4
- 2.Sxd4#
- 1...Qe5
- 2.Sd4#
- 1...Be5
- 2.Rg5#
- threat
- 1.Rc7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 6
- REMOVED MATES = 4
- Sets
- R(d);P_PINB(F),SBLOCK,XP(E)::R1(B),XB(a)
- B(a);N_GUARD::R1(B)
- B(a);N_GUARD,N_SPINQ(b)::R1(B)
- B(a);N_GUARD::R1(B),XB(a)
- Tries
- Try
- K(I);N_SPINS(D),P-FLIGHT
- Threat
- DUALS(4)
- Vars
- Q(b);CHECK,N_SPINQ(b),XR(C)::B(H)+S(D),XQ(b)
- B(e);::B(H)+S(D),DCHECK
- Refutation
- B(a);CHECK
- Try
- K(I);N_SPINS(D),P-FLIGHT,P_SPINP(G)
- Threat
- DUALS(5)
- Vars
- B(e);::B(H)+S(D),DCHECK
- Refutation
- R(d);CHECK,XP(G)
- Try
- R(C);CHECK,N_SPINS(D),XQ(b)
- Refutation
- B(e);P_PINS(D),XR(C)
- Try
- Actual
- R(C);N_PINQ(b)
- Threat
- R(C)
- Vars
- Q(b);CHECK,N_PINS(D)::B(H)+S(D),XQ(b)
- Q(b);N_PINS(D),XP(A)::B(H)+S(D)
- R(d);P_PINB(F),SBLOCK,XP(E)::R1(B),XB(a)
- B(a);N_GUARD,XR(C)::R1(B)
- Q(b);N_PINS(D)::S(D)
- B(a);N_GUARD::R1(B),XB(a)
- Q(b);N_PINS(D)::B(H)+S(D),DCHECK
- Q(b);N_PINS(D)::B(H)+S(D),DCHECK,XQ(b)
- B(a);N_GUARD::R1(B)
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).