MESON Chess Problem Database
Problem Display
PID: 252921 (4R1K1/5Pp1/BnpNb3/3k1N1Q/1P1p1pp1/2b5/4R3/8 w - - 0 1)
ten Cate, Pieter
Probleemblad, 1983
#2
9 + 9
SOLUTION
- SOUND
- Sets
- 1...Bd7
- 2.R2e5#
- 2.R8e5#
- 1...Bxf7+
- 2.Qxf7#
- 1...Bc8
- 2.R2e5#
- 2.R8e5#
- 1...Sa4
- 2.Bc4#
- 1...Sc4
- 2.Bxc4#
- 1...Sd7
- 2.Bc4#
- 1...Sa8
- 2.Bc4#
- 1...Sc8
- 2.Bc4#
- 1...g3
- 2.Qf3#
- 1...c5
- 2.Bb7#
- 1...Bd7
- Tries
- 1.Sc4?
- threat
- 2.Sxb6#
- 2.Se7#
- 2.Re5#
- 1...Bxf7+
- 2.Qxf7#
- 1...Bxb4
- 2.Se7#
- 2.Re5#
- 1...Bxf5
- 2.R2e5#
- 2.R8e5#
- 2.Qxf5#
- 1...c5
- 2.Se7#
- 1...Sa4
- 2.Se7#
- 2.Re5#
- 1...Sd7
- 2.Se7#
- 1...Sa8
- 2.Se7#
- 2.Re5#
- 1...Sc8
- 2.Se7#
- 2.Re5#
- 1...d3
- 2.Sxb6#
- 1...Sxc4!
- threat
- 1.Sb7?
- threat
- 2.Se7#
- 1...Bxf7+
- 2.Qxf7#
- 1...Bxf5
- 2.R2e5#
- 2.R8e5#
- 2.Qxf5#
- 1...d3!
- threat
- 1.Sc8?
- threat
- 2.Sfe7#
- 2.Sxb6#
- 2.Sce7#
- 1...Bxf7+
- 2.Qxf7#
- 1...Bxb4
- 2.Sfe7#
- 1...Bxf5
- 2.R2e5#
- 2.R8e5#
- 2.Qxf5#
- 1...Bxc8
- 2.R2e5#
- 2.R8e5#
- 1...c5
- 2.Sfe7#
- 2.Sce7#
- 1...Sa4
- 2.Sfe7#
- 2.Sce7#
- 1...Sc4
- 2.Sfe7#
- 2.Sce7#
- 1...Sd7
- 2.Sfe7#
- 2.Sce7#
- 1...Sa8
- 2.Sfe7#
- 2.Sce7#
- 1...d3
- 2.Sxb6#
- 2.Sce7#
- 1...Sxc8!
- threat
- 1.R2xe6?
- threat
- 2.Se3#
- 2.Sxg7#
- 2.Re5#
- 1...c5
- 2.Bb7#
- 1...Sc4
- 2.Se3#
- 2.Bxc4#
- 1...Sd7
- 2.Se3#
- 2.Bc4#
- 1...g5
- 2.Re5#
- 1...g6
- 2.Se3#
- 2.Re5#
- 1...d3!
- threat
- 1.R8xe6?
- threat
- 2.Se7#
- 2.Sxg7#
- 2.R2e5#
- 2.R6e5#
- 1...c5
- 2.Se7#
- 2.Bb7#
- 1...Sc4
- 2.Se7#
- 2.Bxc4#
- 1...Sd7
- 2.Se7#
- 2.Bc4#
- 1...g5
- 2.Se7#
- 2.R2e5#
- 2.R6e5#
- 1...g6
- 2.Se7#
- 2.R2e5#
- 2.R6e5#
- 1...d3!
- threat
- 1.Qg6?
- threat
- 2.Qxe6#
- 1...Bxf7+
- 2.Qxf7#
- 1...Bxf5
- 2.R2e5#
- 2.R8e5#
- 1...c5
- 2.Bb7#
- 1...Bd7
- 2.Se7#
- 2.R2e5#
- 2.R8e5#
- 1...Bc8
- 2.Se7#
- 2.R2e5#
- 2.R8e5#
- 1...Bxb4!
- threat
- 1.Sc4?
- Keys
- 1.Se4!
- threat
- 2.Se7#
- 1...Bxf7+
- 2.Qxf7#
- 1...Ke5
- 2.Sxg7#
- 1...Bxf5
- 2.Qxf5#
- 1...Bd7
- 2.Se3#
- 1...Bc8
- 2.Se3#
- 1...d3
- 2.Sxc3#
- 1...g5
- 2.Sf6#
- threat
- 1.Se4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 6
- REMOVED MATES = 7
- Sets
- B(h);CHECK,OGATE,XP(G)::QAB(D),XB(h)
- S(f);N_GUARD::B(E)
- S(f);N_GUARD::B(E),XS(f)
- P(d);OGATE::QAB(D)
- P(g);OGATEB::B(E)
- Tries
- Try
- S(F);
- Threat
- DUALS(3)
- Vars
- B(h);CHECK,OGATE,XP(G)::QAB(D),XB(h)
- P(g);::QAR(D)+S(C),DCHECK
- S(f);::QAR(D)+S(C),DCHECK
- P(b);::S(F),XS(f)
- Refutation
- S(f);XS(F)
- Try
- S(F);
- Threat
- QAR(D)+S(C),DCHECK
- Vars
- B(h);CHECK,OGATE,XP(G)::QAB(D),XB(h)
- Refutation
- P(b);
- Try
- S(F);
- Threat
- DUALS(3)
- Vars
- B(h);CHECK,OGATE,XP(G)::QAB(D),XB(h)
- B(a);XP(B)::QAR(D)+S(C),DCHECK
- Refutation
- S(f);XS(F)
- Try
- R(A);N_SPINP(G),XB(h)
- Threat
- DUALS(3)
- Vars
- P(g);OGATEB::B(E)
- P(i);::R1(A)
- Refutation
- P(b);
- Try
- R(H);N_SPINP(G),XB(h)
- Threat
- DUALS(4)
- Refutation
- P(b);
- Try
- Q(D);
- Threat
- QAB1(D),XB(h)
- Vars
- B(h);CHECK,OGATE,XP(G)::QAB(D),XB(h)
- P(g);OGATEB::B(E)
- Refutation
- B(a);XP(B)
- Try
- Actual
- S(F);
- Threat
- QAR(D)+S(C),DCHECK
- Vars
- B(h);CHECK,OGATE,XP(G)::QAB(D),XB(h)
- K(e);P-FLIGHT,P_SPINB(h)::QAR(D)+S(C),XP(i)
- B(h);N_PINP(G),OGATE,P_SPINB(h),XS(C)::QAR2(D),XB(h)
- B(h);N_PINP(G)::QAR(D)+S(C),DCHECK
- P(b);N_GUARD::S(F),XB(a)
- P(i);N_GUARD::S(F)
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).