MESON Chess Problem Database
Problem Display
PID: 276294 (1n5B/2P3R1/1Kp1B3/1PN1rp2/3k3q/p5rR/1N1P4/7Q w - - 0 1)
Bourd, Evgeny
3rd Prize, Pat a Mat, 2004
#2
11 + 8
| 15601 | Albrecht-Leiss-Degener Collection | 2024 |
SOLUTION
- SOUND
- Sets
- 1...Rg1
- 2.Sb3#
- 2.Rd3#
- 1...Rg2
- 2.Rd3#
- 1...Rb3
- 2.Sxb3#
- 1...Rc3
- 2.dxc3#
- 1...Rd3
- 2.Rxd3#
- 1...Rg4
- 2.Sb3#
- 2.Rd3#
- 1...Rg5
- 2.Sb3#
- 2.Rd3#
- 1...Rg6
- 2.Sb3#
- 2.Rd3#
- 1...Rxg7
- 2.Sb3#
- 2.Rd3#
- 1...Re1
- 2.Rg4#
- 2.Rd7#
- 1...Re2
- 2.Rg4#
- 2.Rd7#
- 1...Re3
- 2.Rg4#
- 2.Rd7#
- 1...Re4
- 2.Rd7#
- 1...Rxc5
- 2.Rg4#
- 2.Rd7#
- 1...Rd5
- 2.Rg4#
- 1...Rxe6
- 2.Rg4#
- 2.Rd7#
- 1...Sa6
- 2.Rd7#
- 1...Sd7+
- 2.Rxd7#
- 1...Rg1
- Tries
- 1.Rhxg3?
- threat
- 2.Sb3#
- 2.Rd3#
- 1...Sd7+
- 2.Rxd7#
- 1...Qxh1
- 2.Rd3#
- 1...Rxc5
- 2.R7g4#
- 2.Rd7#
- 1...Rxe6
- 2.R7g4#
- 2.Rd7#
- 1...Re1
- 2.R7g4#
- 2.Rd7#
- 1...Re2
- 2.R7g4#
- 2.Rd7#
- 1...Re3
- 2.R7g4#
- 2.Rd7#
- 1...Re4
- 2.Rd7#
- 1...Rd5
- 2.R7g4#
- 1...Qh3
- 2.Sb3#
- 1...Qe4
- 2.Sb3#
- 1...Qxg3!
- threat
- 1.Rxh4+?
- 1...Rg4
- 2.Sb3#
- 1...Re4
- 2.Rxg3#
- 2.Rgg4#
- 2.Rg5#
- 2.Rg6#
- 2.Rd7#
- 1...f4!
- 1...Rg4
- 1.Rg4+?
- 1...Rxg4
- 2.Sb3#
- 2.Rd3#
- 1...fxg4
- 2.Qe4#
- 1...f4
- 2.Qe4#
- 1...Qxg4!
- 1...Rxg4
- 1.Qf3?
- threat
- 2.Sb3#
- 1...Sd7+
- 2.Rxd7#
- 1...Rxc5
- 2.Rg4#
- 2.Rd7#
- 1...Rxe6
- 2.Rg4#
- 2.Rd7#
- 1...Re1
- 2.Rg4#
- 2.Rd7#
- 1...Re2
- 2.Rg4#
- 2.Rd7#
- 1...Re3
- 2.Rg4#
- 2.Rd7#
- 1...Re4
- 2.Rd7#
- 1...Rd5
- 2.Rg4#
- 1...Rxf3!
- threat
- 1.Qd5+?
- 1...Rxd5
- 2.Rg4#
- 1...cxd5!
- 1...Rxd5
- 1.Qa1?
- threat
- 2.Sbd3#
- 1...Sd7+
- 2.Rxd7#
- 1...Rxc5
- 2.Rg4#
- 1...Rxe6
- 2.Rd7#
- 1...axb2
- 2.Qa4#
- 1...Re1
- 2.Rg4#
- 2.Rd7#
- 1...Rd5
- 2.Rg4#
- 1...Rg1
- 2.Sd1#
- 2.Rd3#
- 1...Rc3
- 2.dxc3#
- 1...Rd3
- 2.Sbxd3#
- 2.Rxd3#
- 1...Rb3!
- threat
- 1.Qc1?
- threat
- 2.Qc4#
- 1...Sd7+
- 2.Rxd7#
- 1...Rxc5
- 2.Rg4#
- 1...Rxe6
- 2.Rd7#
- 1...Re1
- 2.Rg4#
- 2.Rd7#
- 1...Re2
- 2.Rg4#
- 2.Rd7#
- 1...Ree3
- 2.Rg4#
- 2.Rd7#
- 1...Re4
- 2.Rd7#
- 1...Rd5
- 2.Rg4#
- 1...Rc3
- 2.Qxc3#
- 2.dxc3#
- 1...cxb5!
- threat
- 1.Qf1?
- threat
- 2.Qc4#
- 1...Sd7+
- 2.Rxd7#
- 1...Rxc5
- 2.Rg4#
- 1...Rxe6
- 2.Rd7#
- 1...Re1
- 2.Rg4#
- 2.Rd7#
- 1...Re2
- 2.Rg4#
- 2.Rd7#
- 1...Ree3
- 2.Rg4#
- 2.Rd7#
- 1...Re4
- 2.Rd7#
- 1...Rd5
- 2.Rg4#
- 1...Rc3
- 2.dxc3#
- 1...Rd3
- 2.Rxd3#
- 2.Qxd3#
- 1...cxb5!
- threat
- 1.Qg1+?
- 1...Rxg1
- 2.Rd3#
- 1...Ree3
- 2.Rg4#
- 2.Rd7#
- 1...Rge3!
- 1...Rxg1
- 1.Rhxg3?
- Keys
- 1.Sbd3!
- threat
- 2.Qa1#
- 1...Sd7+
- 2.Rxd7#
- 1...Rxd3
- 2.Rxd3#
- 1...Rxc5
- 2.Rd7#
- 1...Rxe6
- 2.Rg4#
- 1...Rd5
- 2.Rg4#
- 1...Rg1
- 2.Sb3#
- 1...Re1
- 2.Rg4#
- 2.Rd7#
- threat
- 1.Sbd3!
There are these versions: 135019
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 5
- Sets
- R(b);OGATE::R1(D)
- R(b);N_GUARD,P_PINP(E)::S(F),XR(b)
- R(b);OGATE::P(C),XR(b)
- R(b);OGATE::R1(D),XR(b)
- R(e);::B(K)+R(J),DCHECK
- S(h);N_GUARD::R(J)
- S(h);CHECK,N_GUARD::R(J),XS(h)
- Tries
- Try
- R(D);XR(b)
- Threat
- DUALS(2)
- Vars
- S(h);CHECK,N_GUARD::R(J),XS(h)
- Q(d);XQ(A)::R1(D)
- R(e);::B(K)+R(J),DCHECK
- Q(d);::S(F)
- Refutation
- Q(d);XR(D)
- Try
- R(D);CHECK,XQ(d)
- Vars
- R(b);P_SPINR(b)::S(F)
- Refutation
- P(f);P_SPINP(f)
- Try
- R(J);CHECK,P_PINR(e)
- Vars
- P(f);N_GUARD,XR(J)::QAR1(A)
- P(f);N_GUARD,P_SPINP(f)::QAR1(A)
- Refutation
- Q(d);XR(J)
- Try
- Q(A);
- Threat
- S(F)
- Vars
- S(h);CHECK,N_GUARD::R(J),XS(h)
- R(e);::B(K)+R(J),DCHECK
- Refutation
- R(b);XQ(A)
- Try
- Q(A);CHECK
- Vars
- R(e);XQ(A)::B(K)+R(J),DCHECK
- Refutation
- P(g);XQ(A)
- Try
- Q(A);
- Threat
- QAB(A)+S(B)
- Vars
- S(h);CHECK,N_GUARD::R(J),XS(h)
- R(e);XS(F)::B(K)+R(J),DCHECK
- R(e);XB(H)::B(K)+R(J),DCHECK
- P(a);OGATE,P_SPINP(a),XS(B)::QAR(A)
- R(e);::B(K)+R(J),DCHECK
- R(b);OGATE::P(C),XR(b)
- Refutation
- R(b);P_PINP(E)
- Try
- Q(A);
- Threat
- QAR1(A)
- Vars
- S(h);CHECK,N_GUARD::R(J),XS(h)
- R(e);XS(F)::B(K)+R(J),DCHECK
- R(e);XB(H)::B(K)+R(J),DCHECK
- R(e);::B(K)+R(J),DCHECK
- Refutation
- P(g);XP(E)
- Try
- Q(A);
- Threat
- QAR1(A)
- Vars
- S(h);CHECK,N_GUARD::R(J),XS(h)
- R(e);XS(F)::B(K)+R(J),DCHECK
- R(e);XB(H)::B(K)+R(J),DCHECK
- R(e);::B(K)+R(J),DCHECK
- R(b);OGATE::P(C),XR(b)
- Refutation
- P(g);XP(E)
- Try
- Q(A);CHECK
- Vars
- R(b);OGATE,XQ(A)::R1(D)
- Refutation
- R(b);P_SPINR(b)
- Try
- Actual
- S(B);
- Threat
- QAB(A)
- Vars
- S(h);CHECK,N_GUARD::R(J),XS(h)
- R(b);OGATE,XS(B)::R1(D),XR(b)
- R(e);XS(F)::B(K)+R(J),DCHECK
- R(e);XB(H)::B(K)+R(J),DCHECK
- R(e);::B(K)+R(J),DCHECK
- R(b);::S(F)
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).