MESON Chess Problem Database
Problem Display
PID: 11757 (4B2r/8/4R3/2Pk2p1/4n2r/2P3p1/KQ1N4/nN2R1B1 w - - 0 1)
Goldschmeding, Cornelis
1st HM., Schakend Nederland, 1971
#2
10 + 7
SOLUTION
- SOUND
- Sets
- 1...Sc2
- 2.Qb3#
- 1...Sb3
- 2.Qxb3#
- 1...Sf2
- 2.R1e5#
- 2.R6e5#
- 1...Sxc3+
- 2.Sxc3#
- 1...Sxc5
- 2.Bc6#
- 2.R1e5#
- 1...Sd6
- 2.R1e5#
- 2.R6e5#
- 2.Rxd6#
- 1...Sf6
- 2.Bc6#
- 2.R1e5#
- 2.R6e5#
- 2.Rd6#
- 2.Qb7#
- 1...Sc2
- Tries
- 1.Bf7?
- threat
- 2.Qb7#
- 2.c4#
- 1...Sxc3+
- 2.Sxc3#
- 1...Sxd2
- 2.Ra6#
- 2.Rb6#
- 2.Rd6#
- 2.Rf6#
- 2.Rg6#
- 2.Rh6#
- 1...Sxc5
- 2.R1e5#
- 1...Sf2
- 2.R1e5#
- 1...Sd6
- 2.Rxd6#
- 1...Rb8
- 2.c4#
- 1...Rc8
- 2.c4#
- 1...Sb3
- 2.Qxb3#
- 2.c4#
- 1...Sf6
- 2.R1e5#
- 2.Ra6#
- 2.Rb6#
- 2.Rd6#
- 2.Rxf6#
- 2.Qb7#
- 1...Ra8+!
- threat
- 1.R1xe4?
- threat
- 2.Bc6#
- 2.R4e5#
- 2.R6e5#
- 2.Rd6#
- 2.Qb7#
- 2.c4#
- 1...Rxe8
- 2.R4e5#
- 2.Rd6#
- 2.Qb7#
- 2.c4#
- 1...R4h6
- 2.Bc6#
- 2.R4e5#
- 2.R6e5#
- 2.Qb7#
- 2.c4#
- 1...R4h7
- 2.Bc6#
- 2.R4e5#
- 2.R6e5#
- 2.Rd6#
- 2.c4#
- 1...R8h6
- 2.Bc6#
- 2.R4e5#
- 2.R6e5#
- 2.Qb7#
- 2.c4#
- 1...R8h7
- 2.Bc6#
- 2.R4e5#
- 2.R6e5#
- 2.Rd6#
- 2.c4#
- 1...Sb3
- 2.Bc6#
- 2.R4e5#
- 2.R6e5#
- 2.Rd6#
- 2.Qxb3#
- 2.c4#
- 1...Rxe4!
- threat
- 1.R6xe4?
- threat
- 2.Re5#
- 2.Qb7#
- 2.c4#
- 1...Rxe8
- 2.Qb7#
- 1...R4h6
- 2.Re5#
- 2.c4#
- 1...R4h7
- 2.Re5#
- 2.c4#
- 1...R8h6
- 2.Re5#
- 2.c4#
- 1...R8h7
- 2.Re5#
- 2.c4#
- 1...Sb3
- 2.Re5#
- 2.Qxb3#
- 2.c4#
- 1...Rxe4!
- threat
- 1.Rg6?
- threat
- 2.c4#
- 1...Sxc3+
- 2.Sxc3#
- 1...Sxd2
- 2.Bf7#
- 1...Sxc5
- 2.Bc6#
- 1...Sf2
- 2.Rxg5#
- 1...Sd6
- 2.Rxd6#
- 1...Sf6
- 2.Rxg5#
- 2.Qb7#
- 1...Ke5!
- threat
- 1.Qb4?
- threat
- 2.Qc4#
- 1...Sxc3+
- 2.Sxc3#
- 1...Sxd2
- 2.Bc6#
- 2.R1e5#
- 2.R6e5#
- 2.Rd6#
- 1...Sxc5
- 2.Bc6#
- 2.R1e5#
- 2.Qxc5#
- 1...Sf2
- 2.Bc6#
- 2.R1e5#
- 2.R6e5#
- 2.Rd6#
- 1...Sd6
- 2.R1e5#
- 2.R6e5#
- 2.Rxd6#
- 1...Sf6
- 2.Bc6#
- 2.R1e5#
- 2.R6e5#
- 2.Rd6#
- 2.Qb7#
- 1...Kxe6!
- threat
- 1.Qb5?
- threat
- 2.Qc4#
- 2.Qc6#
- 1...Sxc3+
- 2.Sxc3#
- 1...Sxd2
- 2.Bc6#
- 2.R1e5#
- 2.R6e5#
- 2.Rd6#
- 2.c6#
- 1...Sxc5
- 2.Bc6#
- 2.R1e5#
- 2.Qc6#
- 2.Qxc5#
- 1...Sf2
- 2.Bc6#
- 2.R1e5#
- 2.R6e5#
- 2.Rd6#
- 2.Qc6#
- 2.c6#
- 1...Sd6
- 2.Bc6#
- 2.R1e5#
- 2.R6e5#
- 2.Rxd6#
- 2.Qc6#
- 2.cxd6#
- 1...Sf6
- 2.Bc6#
- 2.R1e5#
- 2.R6e5#
- 2.Rd6#
- 2.Qc6#
- 2.Qb7#
- 2.c6#
- 1...Kxe6!
- threat
- 1.Qb6?
- threat
- 2.Qc6#
- 2.c4#
- 1...Sxc3+
- 2.Sxc3#
- 1...Sxc5
- 2.Bc6#
- 2.R1e5#
- 2.R6e5#
- 2.Rd6#
- 2.Qxc5#
- 2.Qc6#
- 2.Qd6#
- 1...Sf2
- 2.Bc6#
- 2.R1e5#
- 2.R6e5#
- 2.Rd6#
- 2.Qc6#
- 2.Qd6#
- 1...Sd6
- 2.Bc6#
- 2.R1e5#
- 2.R6e5#
- 2.Rxd6#
- 2.Qc6#
- 2.Qxd6#
- 1...Sf6
- 2.Bc6#
- 2.R1e5#
- 2.R6e5#
- 2.Rd6#
- 2.Qc6#
- 2.Qd6#
- 2.Qb7#
- 1...Sxd2!
- threat
- 1.Bf7?
- Keys
- 1.Rf6!
- threat
- 2.c4#
- 1...Sxc3+
- 2.Sxc3#
- 1...Ke5
- 2.c4#
- 1...Sxd2
- 2.Bf7#
- 1...Sxc5
- 2.Bc6#
- 1...Sxf6
- 2.Qb7#
- 1...Sf2
- 2.Rf5#
- 1...Sd6
- 2.Rxd6#
- threat
- 1.Rf6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 6
- REMOVED MATES = 2
- Sets
- S(a);N_GUARD::QAB(E)
- S(a);N_GUARD::QAB(E),XS(a)
- S(c);CHECK,XP(G)::S(A),XS(c)
- Tries
- Try
- B(J);
- Threat
- DUALS(2)
- Vars
- S(c);CHECK,XP(G)::S(A),XS(c)
- S(c);OGATE,XP(H)::R1(B)
- S(c);OGATE::R1(B)
- S(c);::B(J)+R(I),DCHECK,XS(c)
- R(g);::P(G)
- Refutation
- R(g);CHECK
- Try
- R(B);XS(c)
- Threat
- DUALS(6)
- Refutation
- R(d);XR(B)
- Try
- R(I);XS(c)
- Threat
- DUALS(3)
- Vars
- R(g);XB(J)::QAB(E)
- Refutation
- R(d);XR(I)
- Try
- R(I);
- Threat
- P(G)
- Vars
- S(c);CHECK,XP(G)::S(A),XS(c)
- S(c);XS(F)::B(J)
- S(c);XP(H)::B(J)
- S(c);N_GUARD::R(I),XP(f)
- S(c);N_GUARD::R1(I),XS(c)
- Refutation
- K(e);P-FLIGHT,P_SPINS(c)
- Try
- Q(E);
- Threat
- QAB1(E)
- Vars
- S(c);CHECK,XP(G)::S(A),XS(c)
- Refutation
- K(e);P_SPINS(c),S_FLIGHT,XR(I)
- Try
- Q(E);
- Threat
- DUALS(2)
- Vars
- S(c);CHECK,XP(G)::S(A),XS(c)
- Refutation
- K(e);P_SPINS(c),S_FLIGHT,XR(I)
- Try
- Q(E);
- Threat
- DUALS(2)
- Vars
- S(c);CHECK,XP(G)::S(A),XS(c)
- Refutation
- S(c);XS(F)
- Try
- Actual
- R(I);
- Threat
- P(G)
- Vars
- S(c);CHECK,XP(G)::S(A),XS(c)
- K(e);P-FLIGHT,P_SPINS(c)::QAB(E)+P(G)
- S(c);XS(F)::B(J)
- S(c);XP(H)::B(J)
- S(c);XR(I)::QAB(E)
- S(c);::R(I)
- S(c);N_GUARD::R1(I),XS(c)
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).