MESON Chess Problem Database
Problem Display
PID: 61415 (3N1Q2/B1p2p1r/2K1P1B1/2p1k1P1/1b4pR/Rp5b/q2pN1p1/8 w - - 0 1)
Stojnic, Dragan
Bilten DPJ, 2004
#2
10 + 12
| 56 | The Problemist | 2005 |
SOLUTION
- SOUND
- Sets
- 1...Bc3
- 2.Qxc5#
- 1...Ba5
- 2.Qxc5#
- 1...b2
- 2.Re3#
- 1...g3
- 2.Re4#
- 1...c4
- 2.Bd4#
- 1...fxe6
- 2.Qf4#
- 2.Qf6#
- 1...fxg6
- 2.Qf4#
- 1...f5
- 2.Qxf5#
- 1...f6
- 2.Qxf6#
- 1...Bc3
- Tries
- 1.Sxf7+?
- 1...Kxe6
- 2.Sf4#
- 2.Qe8#
- 1...Rxf7!
- 1...Kxe6
- 1.Qg7+?
- 1...f6
- 2.Qxf6#
- 1...Rxg7!
- 1...f6
- 1.Qxf7?
- threat
- 2.Qf4#
- 2.Qf5#
- 2.Qf6#
- 1...Qb1
- 2.Qf4#
- 2.Qf6#
- 1...Qc2
- 2.Qf4#
- 2.Qf6#
- 1...g3
- 2.Re4#
- 2.Qf4#
- 2.Qf6#
- 1...Rxf7!
- threat
- 1.exf7?
- threat
- 2.Qe7#
- 2.Qe8#
- 1...Rh8
- 2.Qe7#
- 2.Qg7#
- 2.Qxh8#
- 1...b2
- 2.Re3#
- 1...g3
- 2.Re4#
- 1...c4
- 2.Bd4#
- 1...Rxf7!
- threat
- 1.Sxf7+?
- Keys
- 1.e7!
- threat
- 2.e8Q#
- 2.e8R#
- 1...Qxa3
- 2.e8Q#
- 2.e8R#
- 1...Rxh4
- 2.e8Q#
- 2.e8R#
- 1...Bxa3
- 2.e8Q#
- 2.e8R#
- 1...fxg6
- 2.Qf4#
- 1...f5
- 2.Qxf5#
- 1...d1Q
- 2.e8Q#
- 2.e8R#
- 1...d1S
- 2.e8Q#
- 2.e8R#
- 1...d1B
- 2.e8Q#
- 2.e8R#
- 1...d1R
- 2.e8Q#
- 2.e8R#
- 1...g1Q
- 2.e8Q#
- 2.e8R#
- 1...g1S
- 2.e8Q#
- 2.e8R#
- 1...g1B
- 2.e8Q#
- 2.e8R#
- 1...g1R
- 2.e8Q#
- 2.e8R#
- 1...Qb1
- 2.e8Q#
- 2.e8R#
- 1...Qa1
- 2.e8Q#
- 2.e8R#
- 1...Qb2
- 2.e8Q#
- 2.e8R#
- 1...Qc2
- 2.e8Q#
- 2.e8R#
- 1...Rh5
- 2.e8Q#
- 2.e8R#
- 1...Rh6
- 2.e8Q#
- 2.e8R#
- 1...Rg7
- 2.e8Q#
- 2.e8R#
- 1...Rh8
- 2.e8Q#
- 2.e8R#
- 1...Bc3
- 2.e8Q#
- 2.e8R#
- 1...Ba5
- 2.e8Q#
- 2.e8R#
- 1...b2
- 2.Re3#
- 1...g3
- 2.Re4#
- 1...c4
- 2.Bd4#
- 1...f6
- 2.Qxf6#
- threat
- 1.e7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 2
- Sets
- B(f);N_GUARD::QAR2(J),XP(h)
- P(d);OGATE::R(B)
- P(g);OGATE::R1(C)
- P(h);OGATE::B(H)
- P(k);OGATE,XB(G)::QAB1(J)
- P(k);OGATE::QAR1(J),XP(k)
- P(k);OGATE::QAB1(J),XP(k)
- Tries
- Try
- S(I);CHECK,XP(k)
- Refutation
- R(l);XS(I)
- Try
- Q(J);CHECK
- Vars
- P(k);P_SPINP(k)::QAB1(J),XP(k)
- Refutation
- R(l);XQ(J)
- Try
- Q(J);XP(k)
- Threat
- DUALS(3)
- Refutation
- R(l);XQ(J)
- Try
- P(F);XP(k)
- Threat
- DUALS(2)
- Vars
- P(d);OGATE::R(B)
- P(g);OGATE::R1(C)
- P(h);OGATE::B(H)
- Refutation
- R(l);XP(F)
- Try
- Actual
- P(F);
- Threat
- P=Q
- Vars
- Q(a);XR(B)::P=Q
- R(l);XR(C)::P=Q
- B(f);XR(B)::P=Q
- P(k);OGATE,XB(G)::QAB1(J)
- P(k);OGATE::QAR1(J),XP(k)
- P(b);::P=Q
- P(c);::P=Q
- Q(a);::P=Q
- R(l);::P=Q
- R(l);P_PINB(G)::P=Q
- B(f);::P=Q
- P(d);OGATE::R(B)
- P(g);OGATE::R1(C)
- P(h);OGATE::B(H)
- P(k);OGATE::QAB1(J),XP(k)
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).