MESON Chess Problem Database
Problem Display
PID: 183619 (4Qn2/K3P1rP/2pPk1bR/5N2/1nP4P/4PRPB/1B6/6b1 w - - 0 1)
Weenink, Henri Gerard Maria
1/2 Prize, Tijdschrift vd NSB, 1925
#2
14 + 7
| 16055 | HGM Weenink (Euwe/Niemeijer/Rueb/Trotsenburg) | 1932 |
SOLUTION
- SOUND
- Sets
- 1...Rxe7+
- 2.Qxe7#
- 1...Rg8
- 2.exf8Q#
- 2.exf8S#
- 2.exf8B#
- 2.exf8R#
- 2.hxg8Q#
- 2.hxg8B#
- 1...Bxe3+
- 2.Rxe3#
- 1...Rxe7+
- Tries
- 1.Bxg7?
- threat
- 2.exf8Q#
- 2.exf8S#
- 2.exf8B#
- 2.exf8R#
- 1...Bxe3+
- 2.Rxe3#
- 1...Bf2
- 2.exf8Q#
- 2.exf8S#
- 2.exf8B#
- 2.exf8R#
- 1...Bh2
- 2.exf8Q#
- 2.exf8S#
- 2.exf8B#
- 2.exf8R#
- 1...Sa2
- 2.exf8Q#
- 2.exf8S#
- 2.exf8B#
- 2.exf8R#
- 1...Sc2
- 2.exf8Q#
- 2.exf8S#
- 2.exf8B#
- 2.exf8R#
- 1...Sd3
- 2.exf8Q#
- 2.exf8S#
- 2.exf8B#
- 2.exf8R#
- 1...Sa6
- 2.exf8Q#
- 2.exf8S#
- 2.exf8B#
- 2.exf8R#
- 1...Sd7
- 2.Qg8#
- 1...c5
- 2.exf8Q#
- 2.exf8S#
- 2.exf8B#
- 2.exf8R#
- 1...Sxh7!
- threat
- 1.Rxg6+?
- 1...Rxg6
- 2.exf8Q#
- 2.exf8S#
- 2.exf8B#
- 2.exf8R#
- 1...Sxg6!
- 1...Rxg6
- 1.Qxc6?
- threat
- 2.Sxg7#
- 1...Rxe7+
- 2.Sxe7#
- 1...Bxe3+
- 2.Sxe3#
- 1...Kf7
- 2.e8Q#
- 1...Rxh7
- 2.Sg7#
- 1...Rf7
- 2.Sg7#
- 1...Rg8
- 2.Sg7#
- 2.e8Q#
- 2.hxg8Q#
- 2.hxg8B#
- 1...Sxc6+!
- threat
- 1.Qxg6+?
- 1...Kd7
- 2.e8Q#
- 1...Rxg6
- 2.e8Q#
- 1...Sxg6!
- 1...Kd7
- 1.Qc8+?
- 1...Kf7
- 2.exf8Q#
- 2.exf8R#
- 2.e8Q#
- 2.e8B#
- 1...Sd7!
- 1...Kf7
- 1.Qd8?
- threat
- 2.Sxg7#
- 1...Rxe7+
- 2.Sxe7#
- 2.Qxe7#
- 1...Bxe3+
- 2.Sxe3#
- 1...Kf7
- 2.e8Q#
- 1...Rxh7
- 2.Sg7#
- 1...Rf7
- 2.Sg7#
- 1...Rg8
- 2.Sg7#
- 2.e8Q#
- 2.hxg8Q#
- 2.hxg8B#
- 1...Sd7!
- threat
- 1.d7?
- threat
- 2.d8S#
- 2.exf8S#
- 1...Bxe3+
- 2.Rxe3#
- 1...Rxe7
- 2.Qxe7#
- 1...Sxh7
- 2.d8S#
- 1...Rg8
- 2.d8S#
- 2.exf8Q#
- 2.exf8S#
- 2.exf8B#
- 2.exf8R#
- 2.hxg8Q#
- 2.hxg8B#
- 1...Sxd7!
- threat
- 1.Bxg7?
- Keys
- 1.Qb8!
- threat
- 2.Sxg7#
- 1...Rxe7+
- 2.Sxe7#
- 1...Bxe3+
- 2.Sxe3#
- 1...Kd7
- 2.exf8S#
- 1...Kf7
- 2.e8Q#
- 1...Rxh7
- 2.Sg7#
- 1...Rf7
- 2.Sg7#
- 1...Rg8
- 2.Sg7#
- 2.e8Q#
- threat
- 1.Qb8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 4
- REMOVED MATES = 0
- Sets
- R(f);CHECK,OGATE,P_SPINR(f),XP(L)::QAR1(N),XR(f)
- B(a);CHECK,OGATE,P_PINP(L),XP(B)::R(C),XB(a)
- Tries
- Try
- B(A);XR(f)
- Threat
- DUALS(4)
- Vars
- B(a);CHECK,OGATE,XP(B)::R(C),XB(a)
- S(g);OGATE,SBLOCK::QAB(N)
- Refutation
- S(g);XP(M)
- Try
- R(J);CHECK,XB(e)
- Refutation
- S(g);XR(J)
- Try
- Q(N);XP(c)
- Threat
- B(E)+S(H),DCHECK,XR(f)
- Vars
- R(f);CHECK,XP(L)::B(E)+S(H),XR(f)
- B(a);CHECK,P_PINP(L),XP(B)::B(E)+S(H),XB(a)
- K(d);N_SPINB(e),OGATE,S_FLIGHT::P=Q
- R(f);XP(M)::B(E)+S(H),DCHECK
- R(f);::B(E)+S(H),DCHECK
- Refutation
- S(b);CHECK,XQ(N)
- Try
- Q(N);CHECK,XB(e)
- Vars
- K(d);OGATE,S_FLIGHT::P=Q
- R(f);OGATE,P_SPINR(f),XQ(N)::P=Q
- Refutation
- S(g);P_SPINS(g),XQ(N)
- Try
- Q(N);CHECK
- Refutation
- S(g);P_SPINS(g)
- Try
- Q(N);
- Threat
- B(E)+S(H),DCHECK,XR(f)
- Vars
- B(a);CHECK,P_PINP(L),XP(B)::B(E)+S(H),XB(a)
- K(d);N_SPINB(e),OGATE,S_FLIGHT::P=Q
- R(f);XP(M)::B(E)+S(H),DCHECK
- R(f);::B(E)+S(H),DCHECK
- Refutation
- S(g);
- Try
- P(I);
- Threat
- DUALS(2)
- Vars
- B(a);CHECK,OGATE,XP(B)::R(C),XB(a)
- R(f);OGATE,P_SPINR(f),XP(L)::QAR1(N),XR(f)
- S(g);XP(M)::P=S
- Refutation
- S(g);XP(I)
- Try
- Actual
- Q(N);
- Threat
- B(E)+S(H),DCHECK,XR(f)
- Vars
- R(f);CHECK,XP(L)::B(E)+S(H),XR(f)
- B(a);CHECK,P_PINP(L),XP(B)::B(E)+S(H),XB(a)
- K(d);N_SPINB(e),OGATE,S_FLIGHT::PXS(g)=S
- K(d);N_SPINB(e),OGATE,S_FLIGHT::P=Q
- R(f);XP(M)::B(E)+S(H),DCHECK
- R(f);::B(E)+S(H),DCHECK
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).