MESON Chess Problem Database
Problem Display
PID: 76627 (4B3/5p2/5R2/1n6/4N3/1Q2b3/K1np1B2/1Rrk2N1 w - - 0 1)
Cafferata, Louis William
The Tablet, 1940
(First published on Sat Mar 9 1940)
#2
8 + 7
| 6388 | ChessMoves | 2008 |
SOLUTION
- SOUND
- Sets
- 1...Rxb1
- 2.Qxb1#
- 1...Bd4
- 2.Qf3#
- 1...Bf4
- 2.Qf3#
- 1...Bc5
- 2.Qf3#
- 1...Bg5
- 2.Qf3#
- 1...Bb6
- 2.Qf3#
- 1...Bh6
- 2.Qf3#
- 1...Ba7
- 2.Qf3#
- 1...Sa3
- 2.Sc3#
- 1...Sc3+
- 2.Sxc3#
- 1...Sd4
- 2.Sc3#
- 1...Sd6
- 2.Sc3#
- 1...Sa7
- 2.Sc3#
- 1...Sc7
- 2.Sc3#
- 1...Rxb1
- Tries
- 1.Bg3?
- threat
- 2.Rf1#
- 1...Sc3+
- 2.Sxc3#
- 1...Bxg1
- 2.Qf3#
- 1...Bf4
- 2.Qf3#
- 1...Bf2!
- threat
- 1.Bh4?
- threat
- 2.Rf1#
- 1...Sc3+
- 2.Sxc3#
- 1...Bxg1
- 2.Qf3#
- 1...Bf4
- 2.Qf3#
- 1...Bf2!
- threat
- 1.Bxb5?
- threat
- 2.Sc3#
- 2.Be2#
- 1...Rxb1
- 2.Qxb1#
- 1...Bd4
- 2.Be2#
- 2.Qf3#
- 1...Bxf2!
- threat
- 1.Bc6?
- 1...Sc3+
- 2.Sxc3#
- 1...Rxb1
- 2.Qxb1#
- 1...Bd4
- 2.Qf3#
- 1...Bf4
- 2.Qf3#
- 1...Bc5
- 2.Qf3#
- 1...Bg5
- 2.Qf3#
- 1...Bb6
- 2.Qf3#
- 1...Bh6
- 2.Qf3#
- 1...Ba7
- 2.Qf3#
- 1...Sa3
- 2.Sc3#
- 1...Sd4
- 2.Sc3#
- 1...Sd6
- 2.Sc3#
- 1...Sa7
- 2.Sc3#
- 1...Sc7
- 2.Sc3#
- 1...Bxf2!
- 1...Sc3+
- 1.Bd7?
- threat
- 2.Bg4#
- 1...Sc3+
- 2.Sxc3#
- 1...Rxb1
- 2.Qxb1#
- 1...Sd4
- 2.Sc3#
- 1...Bxf2!
- threat
- 1.Bxf7?
- threat
- 2.Bh5#
- 1...Sc3+
- 2.Sxc3#
- 1...Rxb1
- 2.Qxb1#
- 1...Sd4
- 2.Sc3#
- 1...Bxf2!
- threat
- 1.Rf4?
- 1...Sc3+
- 2.Sxc3#
- 1...Rxb1
- 2.Qxb1#
- 1...Bxf4
- 2.Qf3#
- 1...Bd4
- 2.Qf3#
- 1...Bc5
- 2.Qf3#
- 1...Bb6
- 2.Qf3#
- 1...Ba7
- 2.Qf3#
- 1...Sa3
- 2.Sc3#
- 1...Sd4
- 2.Sc3#
- 1...Sd6
- 2.Sc3#
- 1...Sa7
- 2.Sc3#
- 1...Sc7
- 2.Sc3#
- 1...f5
- 2.Bh5#
- 1...f6
- 2.Bh5#
- 1...Bxf2!
- 1...Sc3+
- 1.Rf5?
- 1...Sc3+
- 2.Sxc3#
- 1...Rxb1
- 2.Qxb1#
- 1...Bd4
- 2.Qf3#
- 1...Bf4
- 2.Qf3#
- 1...Bc5
- 2.Qf3#
- 1...Bg5
- 2.Qf3#
- 1...Bb6
- 2.Qf3#
- 1...Bh6
- 2.Qf3#
- 1...Ba7
- 2.Qf3#
- 1...Sa3
- 2.Sc3#
- 1...Sd4
- 2.Sc3#
- 1...Sd6
- 2.Sc3#
- 1...Sa7
- 2.Sc3#
- 1...Sc7
- 2.Sc3#
- 1...f6
- 2.Bh5#
- 1...Bxf2!
- 1...Sc3+
- 1.Ra6?
- 1...Sc3+
- 2.Sxc3#
- 1...Rxb1
- 2.Qxb1#
- 1...Bd4
- 2.Qf3#
- 1...Bf4
- 2.Qf3#
- 1...Bc5
- 2.Qf3#
- 1...Bg5
- 2.Qf3#
- 1...Bb6
- 2.Qf3#
- 1...Bh6
- 2.Qf3#
- 1...Ba7
- 2.Qf3#
- 1...Sa3
- 2.Sc3#
- 1...Sd4
- 2.Sc3#
- 1...Sd6
- 2.Sc3#
- 1...Sa7
- 2.Sc3#
- 1...Sc7
- 2.Sc3#
- 1...f5
- 2.Bh5#
- 1...f6
- 2.Bh5#
- 1...Bxf2!
- 1...Sc3+
- 1.Rb6?
- 1...Sc3+
- 2.Sxc3#
- 1...Rxb1
- 2.Qxb1#
- 1...Bxb6
- 2.Qf3#
- 1...Bd4
- 2.Qf3#
- 1...Bf4
- 2.Qf3#
- 1...Bc5
- 2.Qf3#
- 1...Bg5
- 2.Qf3#
- 1...Bh6
- 2.Qf3#
- 1...Sa3
- 2.Sc3#
- 1...Sd4
- 2.Sc3#
- 1...Sd6
- 2.Sc3#
- 1...Sa7
- 2.Sc3#
- 1...Sc7
- 2.Sc3#
- 1...f5
- 2.Bh5#
- 1...f6
- 2.Bh5#
- 1...Bxf2!
- 1...Sc3+
- 1.Rc6?
- threat
- 2.Qxc2#
- 1...Sc3+
- 2.Sxc3#
- 1...Bc5
- 2.Qf3#
- 1...Sa3
- 2.Sc3#
- 1...Sd4
- 2.Sc3#
- 1...Bxf2!
- threat
- 1.Rd6?
- 1...Sc3+
- 2.Sxc3#
- 1...Rxb1
- 2.Qxb1#
- 1...Sxd6
- 2.Sc3#
- 1...Bd4
- 2.Qf3#
- 1...Bf4
- 2.Qf3#
- 1...Bc5
- 2.Rxd2#
- 2.Qf3#
- 1...Bg5
- 2.Qf3#
- 1...Bb6
- 2.Rxd2#
- 2.Qf3#
- 1...Bh6
- 2.Qf3#
- 1...Ba7
- 2.Rxd2#
- 2.Qf3#
- 1...Sa3
- 2.Sc3#
- 1...Sd4
- 2.Sc3#
- 1...Sa7
- 2.Sc3#
- 1...Sc7
- 2.Sc3#
- 1...f5
- 2.Bh5#
- 1...f6
- 2.Bh5#
- 1...Bxf2!
- 1...Sc3+
- 1.Rh6?
- 1...Sc3+
- 2.Sxc3#
- 1...Rxb1
- 2.Qxb1#
- 1...Bxh6
- 2.Qf3#
- 1...Bd4
- 2.Qf3#
- 1...Bf4
- 2.Qf3#
- 1...Bc5
- 2.Qf3#
- 1...Bg5
- 2.Qf3#
- 1...Bb6
- 2.Qf3#
- 1...Ba7
- 2.Qf3#
- 1...Sa3
- 2.Sc3#
- 1...Sd4
- 2.Sc3#
- 1...Sd6
- 2.Sc3#
- 1...Sa7
- 2.Sc3#
- 1...Sc7
- 2.Sc3#
- 1...f5
- 2.Bh5#
- 1...f6
- 2.Bh5#
- 1...Bxf2!
- 1...Sc3+
- 1.Rxf7?
- 1...Sc3+
- 2.Sxc3#
- 1...Rxb1
- 2.Qxb1#
- 1...Bd4
- 2.Qf3#
- 1...Bf4
- 2.Qf3#
- 1...Bc5
- 2.Qf3#
- 1...Bg5
- 2.Qf3#
- 1...Bb6
- 2.Qf3#
- 1...Bh6
- 2.Qf3#
- 1...Ba7
- 2.Qf3#
- 1...Sa3
- 2.Sc3#
- 1...Sd4
- 2.Sc3#
- 1...Sd6
- 2.Sc3#
- 1...Sa7
- 2.Sc3#
- 1...Sc7
- 2.Sc3#
- 1...Bxf2!
- 1...Sc3+
- 1.Bg3?
- Keys
- 1.Re6!
- 1...Sc3+
- 2.Sxc3#
- 1...Rxb1
- 2.Qxb1#
- 1...Bxf2
- 2.Sxf2#
- 1...fxe6
- 2.Bh5#
- 1...Bd4
- 2.Qf3#
- 1...Bf4
- 2.Qf3#
- 1...Bc5
- 2.Qf3#
- 1...Bg5
- 2.Qf3#
- 1...Bb6
- 2.Qf3#
- 1...Bh6
- 2.Qf3#
- 1...Ba7
- 2.Qf3#
- 1...Sa3
- 2.Sc3#
- 1...Sd4
- 2.Sc3#
- 1...Sd6
- 2.Sc3#
- 1...Sa7
- 2.Sc3#
- 1...Sc7
- 2.Sc3#
- 1...f5
- 2.Bh5#
- 1...f6
- 2.Bh5#
- 1...Sc3+
- 1.Re6!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 0
- Sets
- R(a);N_SPINR(a),OGATE,XR(A)::QAR2(E),XR(a)
- B(e);OGATE::QAB(E)
- S(f);N_GUARD::S(F)
- S(f);CHECK,N_GUARD::S(F),XS(f)
- Tries
- Try
- B(D);
- Threat
- R(G)
- Vars
- S(f);CHECK,N_GUARD::S(F),XS(f)
- B(e);OGATE,XS(B)::QAB(E)
- B(e);OGATE::QAB(E)
- Refutation
- B(e);
- Try
- B(D);
- Threat
- R(G)
- Vars
- S(f);CHECK,N_GUARD::S(F),XS(f)
- B(e);OGATE,XS(B)::QAB(E)
- B(e);OGATE::QAB(E)
- Refutation
- B(e);
- Try
- B(H);XS(f)
- Threat
- DUALS(2)
- Vars
- R(a);N_SPINR(a),OGATE,XR(A)::QAR2(E),XR(a)
- Refutation
- B(e);XB(D)
- Try
- B(H);
- Vars
- S(f);CHECK,N_GUARD::S(F),XS(f)
- R(a);N_SPINR(a),OGATE,XR(A)::QAR2(E),XR(a)
- B(e);OGATE::QAB(E)
- S(f);N_GUARD::S(F)
- Refutation
- B(e);XB(D)
- Try
- B(H);
- Threat
- B(H)
- Vars
- S(f);CHECK,N_GUARD::S(F),XS(f)
- R(a);N_SPINR(a),OGATE,XR(A)::QAR2(E),XR(a)
- S(f);N_GUARD::S(F)
- Refutation
- B(e);XB(D)
- Try
- B(H);XP(g)
- Threat
- B(H)
- Vars
- S(f);CHECK,N_GUARD::S(F),XS(f)
- R(a);N_SPINR(a),OGATE,XR(A)::QAR2(E),XR(a)
- S(f);N_GUARD::S(F)
- Refutation
- B(e);XB(D)
- Try
- R(G);
- Vars
- S(f);CHECK,N_GUARD::S(F),XS(f)
- R(a);N_SPINR(a),OGATE,XR(A)::QAR2(E),XR(a)
- B(e);OGATE,XR(G)::QAB(E)
- B(e);OGATE::QAB(E)
- S(f);N_GUARD::S(F)
- P(g);OGATE::B(H)
- Refutation
- B(e);XB(D)
- Try
- R(G);
- Vars
- S(f);CHECK,N_GUARD::S(F),XS(f)
- R(a);N_SPINR(a),OGATE,XR(A)::QAR2(E),XR(a)
- B(e);OGATE::QAB(E)
- S(f);N_GUARD::S(F)
- P(g);OGATE::B(H)
- Refutation
- B(e);XB(D)
- Try
- R(G);
- Vars
- S(f);CHECK,N_GUARD::S(F),XS(f)
- R(a);N_SPINR(a),OGATE,XR(A)::QAR2(E),XR(a)
- B(e);OGATE::QAB(E)
- S(f);N_GUARD::S(F)
- P(g);OGATE::B(H)
- Refutation
- B(e);XB(D)
- Try
- R(G);
- Vars
- S(f);CHECK,N_GUARD::S(F),XS(f)
- R(a);N_SPINR(a),OGATE,XR(A)::QAR2(E),XR(a)
- B(e);OGATE,XR(G)::QAB(E)
- B(e);OGATE::QAB(E)
- S(f);N_GUARD::S(F)
- P(g);OGATE::B(H)
- Refutation
- B(e);XB(D)
- Try
- R(G);
- Threat
- QAB1(E),XS(c)
- Vars
- S(f);CHECK,N_GUARD::S(F),XS(f)
- B(e);OGATE::QAB(E)
- S(f);N_GUARD::S(F)
- Refutation
- B(e);XB(D)
- Try
- R(G);P_PINP(d)
- Vars
- S(f);CHECK,N_GUARD::S(F),XS(f)
- R(a);N_SPINR(a),OGATE,XR(A)::QAR2(E),XR(a)
- S(f);N_GUARD,N_SPINP(d),XR(G)::S(F)
- B(e);N_SPINP(d),OGATE::QAB(E)
- B(e);OGATE::QAB(E)
- S(f);N_GUARD::S(F)
- S(f);N_GUARD,N_SPINP(d)::S(F)
- P(g);OGATE::B(H)
- Refutation
- B(e);XB(D)
- Try
- R(G);
- Vars
- S(f);CHECK,N_GUARD::S(F),XS(f)
- R(a);N_SPINR(a),OGATE,XR(A)::QAR2(E),XR(a)
- B(e);OGATE,XR(G)::QAB(E)
- B(e);OGATE::QAB(E)
- S(f);N_GUARD::S(F)
- P(g);OGATE::B(H)
- Refutation
- B(e);XB(D)
- Try
- R(G);XP(g)
- Vars
- S(f);CHECK,N_GUARD::S(F),XS(f)
- R(a);N_SPINR(a),OGATE,XR(A)::QAR2(E),XR(a)
- B(e);OGATE::QAB(E)
- S(f);N_GUARD::S(F)
- Refutation
- B(e);XB(D)
- Try
- Actual
- R(G);
- Vars
- S(f);CHECK,N_GUARD::S(F),XS(f)
- R(a);N_SPINR(a),OGATE,XR(A)::QAR2(E),XR(a)
- B(e);XB(D)::S(F),XB(e)
- P(g);OGATE,XR(G)::B(H)
- B(e);OGATE::QAB(E)
- S(f);N_GUARD::S(F)
- P(g);OGATE::B(H)
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
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