MESON Chess Problem Database
Problem Display
PID: 117335 (2K1Rq2/3NpPr1/2pk2bR/3B2p1/1P5p/1P3Qr1/7B/8 w - - 0 1)
le Grand, Henk
04. Kwik-Toernooi, 1975
#2
10 + 9
| 102 | Probleemblad | 1975 |
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Qxe8+
- 2.fxe8S#
- 1...c5
- 2.bxc5#
- 1...Qxe8+
- Tries
- 1.Bxg3+?
- 1...e5
- 2.Bxe5#
- 1...hxg3!
- 1...e5
- 1.Rxg6+?
- 1...e6
- 2.Rxe6#
- 1...Rxg6!
- 1...e6
- 1.Qd1?
- threat
- 2.Bc4#
- 1...Qxe8+
- 2.fxe8S#
- 1...Qxf7
- 2.Bxf7#
- 1...c5
- 2.bxc5#
- 1...e5
- 2.Bf3#
- 1...e6
- 2.Be4#
- 1...cxd5!
- threat
- 1.Qe2?
- threat
- 2.Qe5#
- 2.Qe6#
- 1...Kxd5
- 2.Qe5#
- 1...Qxf7
- 2.Qe5#
- 1...cxd5
- 2.Qa6#
- 1...e5
- 2.Qxe5#
- 1...e6
- 2.Qe5#
- 2.Qxe6#
- 1...Qxe8+!
- threat
- 1.Qe4?
- threat
- 2.Qe5#
- 2.Qe6#
- 1...Qxe8+
- 2.fxe8S#
- 1...Qxf7
- 2.Qe5#
- 1...e5
- 2.Qxe5#
- 1...e6
- 2.Qe5#
- 2.Qxe6#
- 1...cxd5!
- threat
- 1.Qe3?
- threat
- 2.Qc5#
- 2.Qe5#
- 2.Qe6#
- 1...Kxd5
- 2.Qe5#
- 1...Qxf7
- 2.Qc5#
- 2.Qe5#
- 1...cxd5
- 2.Qb6#
- 1...c5
- 2.Qxc5#
- 2.Qe5#
- 2.Qe6#
- 1...e5
- 2.Qc5#
- 2.Qxe5#
- 1...e6
- 2.Qc5#
- 2.Qe5#
- 2.Qxe6#
- 1...Qxe8+!
- threat
- 1.Qxg3+?
- 1...Kxd5
- 2.Qe5#
- 1...e5
- 2.Qxe5#
- 1...hxg3!
- 1...Kxd5
- 1.Qf4+?
- 1...Kxd5
- 2.Qe5#
- 1...e5
- 2.Qxe5#
- 1...gxf4!
- 1...Kxd5
- 1.Qf5?
- threat
- 2.Qe6#
- 2.Qe5#
- 1...Qxe8+
- 2.fxe8S#
- 1...Qxf7
- 2.Qe5#
- 1...e5
- 2.Qe6#
- 2.Qxe5#
- 1...e6
- 2.Qxe6#
- 2.Qe5#
- 1...cxd5!
- threat
- 1.Qf6+?
- 1...Kxd5
- 2.Qe5#
- 1...e6
- 2.Qe5#
- 2.Qxe6#
- 1...exf6!
- 1...Kxd5
- 1.Bxg3+?
- Keys
- 1.Qd3!
- threat
- 2.Bc4#
- 1...Qxe8+
- 2.fxe8S#
- 1...Qxf7
- 2.Bxf7#
- 1...cxd5
- 2.Qa6#
- 1...c5
- 2.bxc5#
- 1...e5
- 2.Bf3#
- 1...e6
- 2.Be4#
- threat
- 1.Qd3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 0
- Sets
- Q(i);CHECK,OGATE,XR(J)::PXQ(i)=S
- P(d);OGATE::P(D),XP(d)
- Tries
- Try
- B(A);CHECK,XR(a)
- Vars
- P(g);P_SPINP(g)::B(A),XP(g)
- Refutation
- P(b);XB(A)
- Try
- R(F);CHECK,XB(f)
- Vars
- P(g);P_SPINP(g)::R1(F),XP(g)
- Refutation
- R(h);XR(F)
- Try
- Q(C);
- Threat
- QAR(C)+B(E)
- Vars
- Q(i);CHECK,OGATE,XR(J)::PXQ(i)=S
- Q(i);N_PINR(J),OGATE,XP(H)::QAR(C)+B(E),XQ(i)
- P(d);OGATE::P(D),XP(d)
- P(g);N_SPINR(a)::QAR(C)+B(E)
- P(g);N_SPINB(f)::QAR(C)+B(E)
- Refutation
- P(d);P_SPINP(d),XB(E)
- Try
- Q(C);
- Threat
- DUALS(2)
- Vars
- K(e);N_SPINB(f),N_SPINR(a),P-FLIGHT,XB(E)::QAR1(C)
- Q(i);N_PINR(J),XP(H)::QAB1(C)
- P(d);OGATEB,SBLOCK,XB(E)::QAR(C)
- P(g);N_SPINR(a)::QAB1(C),XP(g)
- Refutation
- Q(i);CHECK,XR(J)
- Try
- Q(C);
- Threat
- DUALS(2)
- Vars
- Q(i);CHECK,OGATE,XR(J)::PXQ(i)=S
- Q(i);N_PINR(J),XP(H)::QAB1(C)
- P(g);N_SPINR(a)::QAB1(C),XP(g)
- Refutation
- P(d);XB(E)
- Try
- Q(C);
- Threat
- DUALS(3)
- Vars
- K(e);N_SPINB(f),N_SPINR(a),P-FLIGHT,XB(E)::QAR1(C)
- P(d);OGATEB,SBLOCK,XB(E)::QAR2(C)
- Refutation
- Q(i);CHECK,XR(J)
- Try
- Q(C);CHECK,XR(a)
- Vars
- K(e);N_SPINB(f),P-FLIGHT,XB(E)::QAR1(C)
- P(g);P_SPINP(g)::QAB1(C),XP(g)
- Refutation
- P(b);P_SPINP(b),XQ(C)
- Try
- Q(C);CHECK,N_PINR(a)
- Vars
- K(e);N_SPINB(f),P-FLIGHT,XB(E)::QAR1(C)
- P(g);P_SPINP(g)::QAB1(C),XP(g)
- Refutation
- P(c);XQ(C)
- Try
- Q(C);
- Threat
- DUALS(2)
- Vars
- Q(i);CHECK,OGATE,XR(J)::PXQ(i)=S
- Q(i);N_PINR(J),XP(H)::QAB1(C)
- Refutation
- P(d);XB(E)
- Try
- Q(C);CHECK,N_PINB(f)
- Vars
- K(e);N_SPINR(a),P-FLIGHT,XB(E)::QAR1(C)
- Refutation
- P(g);XQ(C)
- Try
- Actual
- Q(C);
- Threat
- QAR(C)+B(E)
- Vars
- Q(i);CHECK,OGATE,XR(J)::PXQ(i)=S
- Q(i);N_PINR(J),OGATE,XP(H)::QAR(C)+B(E),XQ(i)
- P(d);OGATEB,P_SPINP(d),SBLOCK,XB(E)::QAR(C)
- P(d);OGATE::P(D),XP(d)
- P(g);N_SPINR(a)::QAR(C)+B(E)
- P(g);N_SPINB(f)::QAR(C)+B(E)
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).