MESON Chess Problem Database
Problem Display
PID: 274070 (5B2/4ppPn/2P1kpR1/1PKpPpP1/2pR1P2/5P1N/8/3B4 w - d5 0 1)
Turk, Werner
Die Schwalbe, 2023
#2
13 + 8
SOLUTION
- SOUND
- Sets
- 1...Sxg5
- 2.Sxg5#
- 1...Sxf8
- 2.gxf8S#
- 1...fxg6
- 2.g8Q#
- 2.g8B#
- 1...Sxg5
- Tries
- 1.Kb4?
- 1...Sxg5
- 2.Sxg5#
- 1...Sxf8
- 2.gxf8S#
- 1...fxg6
- 2.g8Q#
- 2.g8B#
- 1...c3!
- 1...Sxg5
- 1.Kb6?
- 1...Sxg5
- 2.Sxg5#
- 1...Sxf8
- 2.gxf8S#
- 1...fxg6
- 2.g8Q#
- 2.g8B#
- 1...c3!
- 1...Sxg5
- 1.Bc2?
- 1...Sxg5
- 2.Sxg5#
- 1...Sxf8
- 2.gxf8S#
- 1...fxg6
- 2.g8Q#
- 2.g8B#
- 1...c3!
- 1...Sxg5
- 1.Be2?
- 1...Sxg5
- 2.Sxg5#
- 1...Sxf8
- 2.gxf8S#
- 1...fxg6
- 2.g8Q#
- 2.g8B#
- 1...c3!
- 1...Sxg5
- 1.Bb3?
- 1...Sxg5
- 2.Sxg5#
- 1...Sxf8
- 2.gxf8S#
- 1...fxg6
- 2.g8Q#
- 2.g8B#
- 1...c3
- 2.Bxd5#
- 1...cxb3!
- 1...Sxg5
- 1.Ba4?
- 1...Sxg5
- 2.Sxg5#
- 1...Sxf8
- 2.gxf8S#
- 1...fxg6
- 2.g8Q#
- 2.g8B#
- 1...c3!
- 1...Sxg5
- 1.Rxd5?
- 1...Sxg5
- 2.Sxg5#
- 1...Sxf8
- 2.gxf8S#
- 1...fxg6
- 2.g8Q#
- 2.g8B#
- 1...c3!
- 1...Sxg5
- 1.Rh6?
- 1...Sxg5
- 2.Sxg5#
- 1...Sxf8
- 2.gxf8S#
- 1...c3!
- 1...Sxg5
- 1.b6?
- 1...Sxg5
- 2.Sxg5#
- 1...Sxf8
- 2.gxf8S#
- 1...fxg6
- 2.g8Q#
- 2.g8B#
- 1...c3!
- 1...Sxg5
- 1.Kb4?
- Keys
- 1.exd5 ep!
- 1...exd6+
- 2.Rxd6#
- 1...Sxg5
- 2.Sxg5#
- 1...Sxf8
- 2.gxf8S#
- 1...fxg6
- 2.g8Q#
- 2.g8B#
- 1...c3
- 2.Bb3#
- 1...exd6+
- 1.exd5 ep!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- S(h);XP(I)::S(C),XS(h)
- S(h);OGATE,XB(M)::PXS(h)=S
- P(g);N_SPINP(e),XR(K)::P=Q
- Tries
- Try
- K(G);S_FLIGHT
- Vars
- S(h);XP(I)::S(C),XS(h)
- S(h);OGATE,XB(M)::PXS(h)=S
- P(g);N_SPINP(e),XR(K)::P=Q
- Refutation
- P(a);
- Try
- K(G);S_FLIGHT
- Vars
- S(h);XP(I)::S(C),XS(h)
- S(h);OGATE,XB(M)::PXS(h)=S
- P(g);N_SPINP(e),XR(K)::P=Q
- Refutation
- P(a);
- Try
- B(A);
- Vars
- S(h);XP(I)::S(C),XS(h)
- S(h);OGATE,XB(M)::PXS(h)=S
- P(g);N_SPINP(e),XR(K)::P=Q
- Refutation
- P(a);
- Try
- B(A);
- Vars
- S(h);XP(I)::S(C),XS(h)
- S(h);OGATE,XB(M)::PXS(h)=S
- P(g);N_SPINP(e),XR(K)::P=Q
- Refutation
- P(a);
- Try
- B(A);
- Vars
- S(h);XP(I)::S(C),XS(h)
- S(h);OGATE,XB(M)::PXS(h)=S
- P(g);N_SPINP(e),XR(K)::P=Q
- P(a);N_SPINP(e),OGATE,P_SPINP(b)::B(A),XP(b)
- Refutation
- P(a);XB(A)
- Try
- B(A);
- Vars
- S(h);XP(I)::S(C),XS(h)
- S(h);OGATE,XB(M)::PXS(h)=S
- P(g);N_SPINP(e),XR(K)::P=Q
- Refutation
- P(a);
- Try
- R(D);XP(b)
- Vars
- S(h);XP(I)::S(C),XS(h)
- S(h);OGATE,XB(M)::PXS(h)=S
- P(g);N_SPINP(e),XR(K)::P=Q
- Refutation
- P(a);
- Try
- R(K);
- Vars
- S(h);XP(I)::S(C),XS(h)
- S(h);OGATE,XB(M)::PXS(h)=S
- Refutation
- P(a);
- Try
- P(F);
- Vars
- S(h);XP(I)::S(C),XS(h)
- S(h);OGATE,XB(M)::PXS(h)=S
- P(g);N_SPINP(e),XR(K)::P=Q
- Refutation
- P(a);
- Try
- Actual
- P(H);EP,XP(b)
- Vars
- P(f);CHECK,OGATE,XP(H)::R1(D),XP(f)
- S(h);XP(I)::S(C),XS(h)
- S(h);OGATE,XB(M)::PXS(h)=S
- P(g);N_SPINP(e),XR(K)::P=Q
- P(a);OGATEB::B(A)
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).