MESON Chess Problem Database
Problem Display
PID: 248176 (2K1BrNb/5Pkb/5RpR/8/3n1N2/8/Q7/8 w - - 0 1)
Vaughan, Colin V
Comm., White MT (B), 1952-1953
#2
8 + 6
| 14867 | BCPS Library | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Rxf7
- 2.Qxf7#
- 1...Rxe8+
- 2.fxe8S#
- 1...Bxg8
- 2.Rfxg6#
- 1...Sc2
- 2.Se6#
- 1...Se2
- 2.Se6#
- 1...Sb3
- 2.Se6#
- 1...Sf3
- 2.Se6#
- 1...Sb5
- 2.Se6#
- 1...Sf5
- 2.Se6#
- 1...Sc6
- 2.Se6#
- 1...Se6
- 2.Sxe6#
- 1...g5
- 2.Sh5#
- 1...Rxf7
- Tries
- 1.Kb7?
- 1...Rxf7+
- 2.Qxf7#
- 1...Rxe8
- 2.fxe8S#
- 1...Bxg8
- 2.Rfxg6#
- 1...Sc2
- 2.Se6#
- 1...Se2
- 2.Se6#
- 1...Sb3
- 2.Se6#
- 1...Sf3
- 2.Se6#
- 1...Sb5
- 2.Se6#
- 1...Sf5
- 2.Se6#
- 1...Sc6
- 2.Se6#
- 1...Se6
- 2.Sxe6#
- 1...g5
- 2.Sh5#
- 1...Rxg8!
- 1...Rxf7+
- 1.Kd7?
- 1...Rxf7+
- 2.Qxf7#
- 1...Rxe8
- 2.fxe8S#
- 1...Bxg8
- 2.Rfxg6#
- 1...Sc2
- 2.Se6#
- 1...Se2
- 2.Se6#
- 1...Sb3
- 2.Se6#
- 1...Sf3
- 2.Se6#
- 1...Sb5
- 2.Se6#
- 1...Sf5
- 2.Se6#
- 1...Sc6
- 2.Se6#
- 1...Se6
- 2.Sxe6#
- 1...g5
- 2.Sh5#
- 1...Rxg8!
- 1...Rxf7+
- 1.Rh1?
- 1...Rxe8+
- 2.fxe8S#
- 1...Rxf7
- 2.Qxf7#
- 1...Bxg8
- 2.Rxg6#
- 1...Sc2
- 2.Se6#
- 1...Se2
- 2.Se6#
- 1...Sb3
- 2.Se6#
- 1...Sf3
- 2.Se6#
- 1...Sb5
- 2.Se6#
- 1...Sf5
- 2.Se6#
- 1...Sc6
- 2.Se6#
- 1...Se6
- 2.Sxe6#
- 1...g5
- 2.Sh5#
- 1...Rxg8!
- 1...Rxe8+
- 1.Rh2?
- 1...Rxe8+
- 2.fxe8S#
- 1...Rxf7
- 2.Qxf7#
- 1...Bxg8
- 2.Rxg6#
- 1...Sc2
- 2.Se6#
- 1...Se2
- 2.Se6#
- 1...Sb3
- 2.Se6#
- 1...Sf3
- 2.Se6#
- 1...Sb5
- 2.Se6#
- 1...Sf5
- 2.Se6#
- 1...Sc6
- 2.Se6#
- 1...Se6
- 2.Sxe6#
- 1...g5
- 2.Sh5#
- 1...Rxg8!
- 1...Rxe8+
- 1.Rh3?
- 1...Rxe8+
- 2.fxe8S#
- 1...Rxf7
- 2.Qxf7#
- 1...Bxg8
- 2.Rxg6#
- 1...Sc2
- 2.Se6#
- 1...Se2
- 2.Se6#
- 1...Sb3
- 2.Se6#
- 1...Sf3
- 2.Se6#
- 1...Sb5
- 2.Se6#
- 1...Sf5
- 2.Se6#
- 1...Sc6
- 2.Se6#
- 1...Se6
- 2.Sxe6#
- 1...g5
- 2.Sh5#
- 1...Rxg8!
- 1...Rxe8+
- 1.Rh4?
- 1...Rxe8+
- 2.fxe8S#
- 1...Rxf7
- 2.Qxf7#
- 1...Bxg8
- 2.Rxg6#
- 1...Sc2
- 2.Se6#
- 1...Se2
- 2.Se6#
- 1...Sb3
- 2.Se6#
- 1...Sf3
- 2.Se6#
- 1...Sb5
- 2.Se6#
- 1...Sf5
- 2.Se6#
- 1...Sc6
- 2.Se6#
- 1...Se6
- 2.Sxe6#
- 1...g5
- 2.Sh5#
- 1...Rxg8!
- 1...Rxe8+
- 1.Qb3?
- 1...Rxe8+
- 2.fxe8S#
- 1...Rxf7
- 2.Qxf7#
- 1...Bxg8
- 2.Rfxg6#
- 1...Sxb3
- 2.Se6#
- 1...Sc2
- 2.Se6#
- 1...Se2
- 2.Se6#
- 1...Sf3
- 2.Se6#
- 1...Sb5
- 2.Se6#
- 1...Sf5
- 2.Se6#
- 1...Sc6
- 2.Se6#
- 1...Se6
- 2.Sxe6#
- 1...g5
- 2.Sh5#
- 1...Rxg8!
- 1...Rxe8+
- 1.Qc4?
- 1...Rxe8+
- 2.fxe8S#
- 1...Rxf7
- 2.Qxf7#
- 1...Bxg8
- 2.Rfxg6#
- 1...Sc2
- 2.Se6#
- 1...Se2
- 2.Se6#
- 1...Sb3
- 2.Se6#
- 1...Sf3
- 2.Se6#
- 1...Sb5
- 2.Se6#
- 1...Sf5
- 2.Se6#
- 1...Sc6
- 2.Se6#
- 1...Se6
- 2.Sxe6#
- 1...g5
- 2.Sh5#
- 1...Rxg8!
- 1...Rxe8+
- 1.Qd5?
- 1...Rxe8+
- 2.fxe8S#
- 1...Rxf7
- 2.Qxf7#
- 1...Bxg8
- 2.Rfxg6#
- 1...Sc2
- 2.Se6#
- 1...Se2
- 2.Se6#
- 1...Sb3
- 2.Se6#
- 1...Sf3
- 2.Se6#
- 1...Sb5
- 2.Se6#
- 1...Sf5
- 2.Se6#
- 1...Sc6
- 2.Se6#
- 1...Se6
- 2.Sxe6#
- 1...g5
- 2.Sh5#
- 1...Rxg8!
- 1...Rxe8+
- 1.Kb7?
- Keys
- 1.Qa7!
- 1...Rxe8+
- 2.fxe8Q#
- 2.fxe8R#
- 1...Rxf7
- 2.Qxf7#
- 1...Rxg8
- 2.f8Q#
- 1...Bxg8
- 2.Rfxg6#
- 1...Sc2
- 2.Se6#
- 1...Se2
- 2.Se6#
- 1...Sb3
- 2.Se6#
- 1...Sf3
- 2.Se6#
- 1...Sb5
- 2.Se6#
- 1...Sf5
- 2.Se6#
- 1...Sc6
- 2.Se6#
- 1...Se6
- 2.Sxe6#
- 1...g5
- 2.Sh5#
- 1...Rxe8+
- 1.Qa7!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 1
- Sets
- R(e);N_PINB(G),OGATE,XP(E)::QAR1(A),XR(e)
- R(e);CHECK,OGATE,XB(G)::PXR(e)=S
- B(d);N_GUARD,XS(H)::R1(C),XP(b)
- S(a);N_GUARD::S(B)
- S(a);N_GUARD::S(B),XS(a)
- P(b);N_GUARD::S(B)
- Tries
- Try
- K(F);N_SPINB(G),S_FLIGHT
- Vars
- R(e);CHECK,OGATE,XP(E)::QAR1(A),XR(e)
- R(e);OGATE,XB(G)::PXR(e)=S
- B(d);N_GUARD,XS(H)::R1(C),XP(b)
- S(a);N_GUARD::S(B)
- S(a);N_GUARD::S(B),XS(a)
- P(b);N_GUARD::S(B)
- Refutation
- R(e);XS(H)
- Try
- K(F);N_SPINB(G),S_FLIGHT
- Vars
- R(e);CHECK,OGATE,XP(E)::QAR1(A),XR(e)
- R(e);OGATE,XB(G)::PXR(e)=S
- B(d);N_GUARD,XS(H)::R1(C),XP(b)
- S(a);N_GUARD::S(B)
- S(a);N_GUARD::S(B),XS(a)
- P(b);N_GUARD::S(B)
- Refutation
- R(e);XS(H)
- Try
- R(D);
- Vars
- R(e);CHECK,OGATE,XB(G)::PXR(e)=S
- R(e);N_PINB(G),OGATE,XP(E)::QAR1(A),XR(e)
- B(d);N_GUARD,XS(H)::R1(C),XP(b)
- S(a);N_GUARD::S(B)
- S(a);N_GUARD::S(B),XS(a)
- P(b);N_GUARD::S(B)
- Refutation
- R(e);XS(H)
- Try
- R(D);
- Vars
- R(e);CHECK,OGATE,XB(G)::PXR(e)=S
- R(e);N_PINB(G),OGATE,XP(E)::QAR1(A),XR(e)
- B(d);N_GUARD,XS(H)::R1(C),XP(b)
- S(a);N_GUARD::S(B)
- S(a);N_GUARD::S(B),XS(a)
- P(b);N_GUARD::S(B)
- Refutation
- R(e);XS(H)
- Try
- R(D);
- Vars
- R(e);CHECK,OGATE,XB(G)::PXR(e)=S
- R(e);N_PINB(G),OGATE,XP(E)::QAR1(A),XR(e)
- B(d);N_GUARD,XS(H)::R1(C),XP(b)
- S(a);N_GUARD::S(B)
- S(a);N_GUARD::S(B),XS(a)
- P(b);N_GUARD::S(B)
- Refutation
- R(e);XS(H)
- Try
- R(D);
- Vars
- R(e);CHECK,OGATE,XB(G)::PXR(e)=S
- R(e);N_PINB(G),OGATE,XP(E)::QAR1(A),XR(e)
- B(d);N_GUARD,XS(H)::R1(C),XP(b)
- S(a);N_GUARD::S(B)
- S(a);N_GUARD::S(B),XS(a)
- P(b);N_GUARD::S(B)
- Refutation
- R(e);XS(H)
- Try
- Q(A);
- Vars
- R(e);CHECK,OGATE,XB(G)::PXR(e)=S
- R(e);N_PINB(G),OGATE,XP(E)::QAR1(A),XR(e)
- B(d);N_GUARD,XS(H)::R1(C),XP(b)
- S(a);N_GUARD,XQ(A)::S(B)
- S(a);N_GUARD::S(B)
- S(a);N_GUARD::S(B),XS(a)
- P(b);N_GUARD::S(B)
- Refutation
- R(e);XS(H)
- Try
- Q(A);
- Vars
- R(e);CHECK,OGATE,XB(G)::PXR(e)=S
- R(e);N_PINB(G),OGATE,XP(E)::QAR1(A),XR(e)
- B(d);N_GUARD,XS(H)::R1(C),XP(b)
- S(a);N_GUARD::S(B)
- S(a);N_GUARD::S(B),XS(a)
- P(b);N_GUARD::S(B)
- Refutation
- R(e);XS(H)
- Try
- Q(A);
- Vars
- R(e);CHECK,OGATE,XB(G)::PXR(e)=S
- R(e);N_PINB(G),OGATE,XP(E)::QAR1(A),XR(e)
- B(d);N_GUARD,XS(H)::R1(C),XP(b)
- S(a);N_GUARD::S(B)
- S(a);N_GUARD::S(B),XS(a)
- P(b);N_GUARD::S(B)
- Refutation
- R(e);XS(H)
- Try
- Actual
- Q(A);
- Vars
- R(e);CHECK,OGATE,XB(G)::PXR(e)=Q
- R(e);N_PINB(G),OGATE,P_SPINR(e),XP(E)::QAR1(A),XR(e)
- R(e);OGATE,XS(H)::P=Q
- B(d);N_GUARD,XS(H)::R1(C),XP(b)
- S(a);N_GUARD::S(B)
- S(a);N_GUARD::S(B),XS(a)
- P(b);N_GUARD::S(B)
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
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