MESON Chess Problem Database
Problem Display
PID: 21234 (4Nr2/Q1b2Ppq/2PP2kp/R7/4N1p1/2PB2Pr/2pB3P/5RK1 w - - 0 1)
Goethart, Gerhardus Hendrik
Op de Hoogte, 1917
#2
14 + 9
SOLUTION
- SOUND
- Sets
- 1...Rxg3+
- 2.Sxg3#
- 1...Rh5
- 2.Sg5#
- 1...Rxf7
- 2.S4f6#
- 1...Rxe8
- 2.fxe8Q#
- 2.fxe8B#
- 1...Bxa5
- 2.S4f6#
- 1...Bb6+
- 2.Sf2#
- 1...Bxd6
- 2.Sf2#
- 2.S4xd6#
- 2.S4f6#
- 1...Bb8
- 2.Sf2#
- 2.S4f6#
- 1...Bd8
- 2.Sf2#
- 2.S4f6#
- 1...h5
- 2.Sc5#
- 1...Rxg3+
- Tries
- 1.Be3?
- threat
- 2.Sd2#
- 1...Rxg3+
- 2.Sxg3#
- 1...Rxf7
- 2.S4f6#
- 1...Rxe8
- 2.fxe8Q#
- 2.fxe8B#
- 1...Bxa5
- 2.S4f6#
- 1...Rh5
- 2.Sg5#
- 1...c1S!
- threat
- 1.Rd5?
- threat
- 2.Sc5#
- 1...Rxg3+
- 2.Sxg3#
- 1...Rxf7
- 2.S4f6#
- 1...Rxe8
- 2.fxe8Q#
- 2.fxe8B#
- 1...Rh5
- 2.Sg5#
- 1...c1S!
- threat
- 1.Re5?
- threat
- 2.Sc5#
- 1...Rxg3+
- 2.Sxg3#
- 1...Rxf7
- 2.S4f6#
- 1...Rh5
- 2.Sg5#
- 2.Re6#
- 1...c1S!
- threat
- 1.Qf2?
- threat
- 2.Qf5#
- 1...Rxg3+
- 2.Sxg3#
- 1...Rxf7
- 2.S4f6#
- 2.Qxf7#
- 1...Rh5
- 2.Sg5#
- 1...Bb6!
- threat
- 1.Qc5?
- threat
- 2.Qf5#
- 1...Rxg3+
- 2.Sxg3#
- 1...Rxf7
- 2.S4f6#
- 1...Rh5
- 2.Sg5#
- 2.Qxh5#
- 1...Bb6!
- threat
- 1.Qxc7?
- threat
- 2.Sf2#
- 2.S4f6#
- 1...Rxg3+
- 2.Sxg3#
- 1...Rxf7
- 2.S4f6#
- 2.Qxf7#
- 1...Rxe8
- 2.fxe8Q#
- 2.fxe8B#
- 1...Rh5
- 2.Sg5#
- 1...c1S!
- threat
- 1.c4?
- threat
- 2.Sc3#
- 1...Rxg3+
- 2.Sxg3#
- 1...Bb6+
- 2.Sf2#
- 1...Rxf7
- 2.S4f6#
- 1...Rxe8
- 2.fxe8Q#
- 2.fxe8B#
- 1...Bxa5
- 2.S4f6#
- 1...Rh5
- 2.Sg5#
- 1...c1S!
- threat
- 1.dxc7?
- threat
- 2.S4d6#
- 1...Rxg3+
- 2.Sxg3#
- 1...Rxf7
- 2.S4f6#
- 1...Rxe8
- 2.fxe8Q#
- 2.fxe8B#
- 1...Rh5
- 2.Sg5#
- 1...c1S!
- threat
- 1.Be3?
- Keys
- 1.Bc1!
- threat
- 2.Sd2#
- 1...Rxg3+
- 2.Sxg3#
- 1...Bb6+
- 2.Sf2#
- 1...Rxf7
- 2.S4f6#
- 1...Rxe8
- 2.fxe8Q#
- 2.fxe8B#
- 1...Bxa5
- 2.S4f6#
- 1...Rh5
- 2.Sg5#
- 1...h5
- 2.Sc5#
- threat
- 1.Bc1!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- R(b);CHECK,XP(G)::B(F)+S(H),XR(b)
- R(b);SBLOCK::B(F)+S(H)
- R(i);SBLOCK,XP(M)::B(F)+S(H)
- R(i);OGATE,XS(N)::PXR(i)=Q
- B(f);XR(I)::B(F)+S(H)
- B(f);CHECK::B(F)+S(H)
- P(e);SBLOCK::B(F)+S(H)
- Tries
- Try
- B(C);
- Threat
- B(F)+S(H)
- Vars
- R(b);CHECK,XP(G)::B(F)+S(H),XR(b)
- R(i);SBLOCK,XP(M)::B(F)+S(H)
- R(i);OGATE,XS(N)::PXR(i)=Q
- B(f);XR(I)::B(F)+S(H)
- R(b);SBLOCK::B(F)+S(H)
- Refutation
- P(a);
- Try
- R(I);
- Threat
- B(F)+S(H)
- Vars
- R(b);CHECK,XP(G)::B(F)+S(H),XR(b)
- R(i);SBLOCK,XP(M)::B(F)+S(H)
- R(i);OGATE,XS(N)::PXR(i)=Q
- R(b);SBLOCK::B(F)+S(H)
- Refutation
- P(a);
- Try
- R(I);
- Threat
- B(F)+S(H)
- Vars
- R(b);CHECK,XP(G)::B(F)+S(H),XR(b)
- R(i);SBLOCK,XP(M)::B(F)+S(H)
- Refutation
- P(a);
- Try
- Q(L);
- Threat
- QAB1(L)
- Vars
- R(b);CHECK,XP(G)::B(F)+S(H),XR(b)
- R(b);SBLOCK::B(F)+S(H)
- Refutation
- B(f);P_PINQ(L)
- Try
- Q(L);
- Threat
- QAB1(L)
- Vars
- R(b);CHECK,XP(G)::B(F)+S(H),XR(b)
- R(i);SBLOCK,XP(M)::B(F)+S(H)
- Refutation
- B(f);P_PINQ(L)
- Try
- Q(L);XB(f)
- Threat
- DUALS(2)
- Vars
- R(b);CHECK,XP(G)::B(F)+S(H),XR(b)
- R(i);OGATE,XS(N)::PXR(i)=Q
- R(b);SBLOCK::B(F)+S(H)
- Refutation
- P(a);
- Try
- P(E);
- Threat
- B(F)+S(H)
- Vars
- R(b);CHECK,XP(G)::B(F)+S(H),XR(b)
- B(f);CHECK::B(F)+S(H)
- R(i);SBLOCK,XP(M)::B(F)+S(H)
- R(i);OGATE,XS(N)::PXR(i)=Q
- B(f);XR(I)::B(F)+S(H)
- R(b);SBLOCK::B(F)+S(H)
- Refutation
- P(a);
- Try
- P(K);XB(f)
- Threat
- B(F)+S(H)
- Vars
- R(b);CHECK,XP(G)::B(F)+S(H),XR(b)
- R(i);SBLOCK,XP(M)::B(F)+S(H)
- R(i);OGATE,XS(N)::PXR(i)=Q
- R(b);SBLOCK::B(F)+S(H)
- Refutation
- P(a);
- Try
- Actual
- B(C);
- Threat
- B(F)+S(H)
- Vars
- R(b);CHECK,XP(G)::B(F)+S(H),XR(b)
- B(f);CHECK::B(F)+S(H)
- R(i);SBLOCK,XP(M)::B(F)+S(H)
- R(i);OGATE,XS(N)::PXR(i)=Q
- B(f);XR(I)::B(F)+S(H)
- R(b);SBLOCK::B(F)+S(H)
- P(e);SBLOCK::B(F)+S(H)
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).