MESON Chess Problem Database
Problem Display
PID: 268965 (5B2/P1P3pq/1R2p2P/p2Pp3/K2pkP2/4p2Q/2N1B1Np/b7 w - - 0 1)
Narayanan, Chithathuz Gopatan Sathya
5/8 Place, 09. WCCT, 2012-2013
#2
12 + 10
SOLUTION
- SOUND
- Sets
- 1...Kxd5
- 2.a8Q#
- 2.a8B#
- 1...Qf5
- 2.Qf3#
- 1...d3
- 2.Bf3#
- 1...exf4
- 2.Qxe6#
- 1...Kxd5
- Tries
- 1.Sce1?
- threat
- 2.Bf3#
- 1...Kxd5
- 2.a8Q#
- 2.a8B#
- 1...exf4
- 2.Qxe6#
- 1...d3!
- threat
- 1.Bd3+?
- 1...Kxd5
- 2.Qxe6#
- 2.a8Q#
- 2.a8B#
- 1...Kxd3!
- 1...Kxd5
- 1.Rb3?
- threat
- 2.Bf3#
- 1...Kxd5
- 2.a8Q#
- 2.a8B#
- 1...exf4
- 2.Qxe6#
- 1...Bc3!
- threat
- 1.Qh5?
- threat
- 2.Qxe5#
- 1...Kxd5
- 2.Qxe5#
- 2.a8Q#
- 2.a8B#
- 1...exf4
- 2.Rxe6#
- 1...Qf5
- 2.Qf3#
- 1...d3
- 2.Bf3#
- 1...g5!
- threat
- 1.f5?
- threat
- 2.Qf3#
- 1...Kxd5
- 2.a8Q#
- 2.a8B#
- 1...Qxf5!
- threat
- 1.dxe6?
- threat
- 2.a8Q#
- 2.a8B#
- 1...Kd5
- 2.a8Q#
- 2.a8B#
- 1...Qxh6
- 2.a8Q#
- 2.a8B#
- 1...gxh6
- 2.a8Q#
- 2.a8B#
- 1...h1Q
- 2.a8Q#
- 2.a8B#
- 1...h1S
- 2.a8Q#
- 2.a8B#
- 1...h1B
- 2.a8Q#
- 2.a8B#
- 1...h1R
- 2.a8Q#
- 2.a8B#
- 1...Qf5
- 2.Qf3#
- 2.a8Q#
- 2.a8B#
- 1...Qg6
- 2.a8Q#
- 2.a8B#
- 1...Qg8
- 2.a8Q#
- 2.a8B#
- 1...Qh8
- 2.a8Q#
- 2.a8B#
- 1...Bb2
- 2.a8Q#
- 2.a8B#
- 1...Bc3
- 2.a8Q#
- 2.a8B#
- 1...d3
- 2.Bf3#
- 2.a8Q#
- 2.a8B#
- 1...g5
- 2.a8Q#
- 2.a8B#
- 1...g6
- 2.a8Q#
- 2.a8B#
- 1...exf4!
- threat
- 1.d6?
- threat
- 2.a8Q#
- 2.a8B#
- 1...Qxh6
- 2.a8Q#
- 2.a8B#
- 1...exf4
- 2.Qxe6#
- 1...gxh6
- 2.a8Q#
- 2.a8B#
- 1...h1Q
- 2.a8Q#
- 2.a8B#
- 1...h1S
- 2.a8Q#
- 2.a8B#
- 1...h1B
- 2.a8Q#
- 2.a8B#
- 1...h1R
- 2.a8Q#
- 2.a8B#
- 1...Qf5
- 2.Qf3#
- 2.a8Q#
- 2.a8B#
- 1...Qg6
- 2.a8Q#
- 2.a8B#
- 1...Qg8
- 2.a8Q#
- 2.a8B#
- 1...Qh8
- 2.a8Q#
- 2.a8B#
- 1...Bb2
- 2.a8Q#
- 2.a8B#
- 1...Bc3
- 2.a8Q#
- 2.a8B#
- 1...d3
- 2.Bf3#
- 2.a8Q#
- 2.a8B#
- 1...g5
- 2.a8Q#
- 2.a8B#
- 1...g6
- 2.a8Q#
- 2.a8B#
- 1...Kd5!
- threat
- 1.a8Q?
- threat
- 2.dxe6#
- 2.d6#
- 1...exf4
- 2.Rxe6#
- 2.Qxe6#
- 1...exd5!
- threat
- 1.a8B?
- threat
- 2.dxe6#
- 2.d6#
- 1...exf4
- 2.Rxe6#
- 2.Qxe6#
- 1...exd5!
- threat
- 1.Sce1?
- Keys
- 1.Rxe6!
- threat
- 2.Rxe5#
- 1...Kxd5
- 2.a8Q#
- 2.a8B#
- 1...Qf5
- 2.Qf3#
- 1...d3
- 2.Bf3#
- threat
- 1.Rxe6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 1
- Sets
- K(e);S_FLIGHT,XP(G)::P=Q
- Q(j);SBLOCK::QAB1(D)
- P(d);SBLOCK::B(B)
- P(g);OGATEB,XP(F)::QAR2(D),XP(h)
- Tries
- Try
- S(A);
- Threat
- B(B)
- Vars
- K(e);S_FLIGHT,XP(G)::P=Q
- P(g);OGATEB,XP(F)::QAR2(D),XP(h)
- Refutation
- P(d);
- Try
- B(B);CHECK
- Refutation
- K(e);P_SPINP(c),S_FLIGHT,XB(B)
- Try
- R(H);
- Threat
- B(B)
- Vars
- K(e);S_FLIGHT,XP(G)::P=Q
- P(g);OGATEB,XP(F)::QAR2(D),XP(h)
- Refutation
- B(a);
- Try
- Q(D);
- Threat
- QAR1(D),XP(g)
- Vars
- P(g);OGATEB,XP(F)::R(H),XP(h)
- Q(j);SBLOCK::QAB1(D)
- P(d);SBLOCK::B(B)
- Refutation
- P(i);
- Try
- P(F);
- Threat
- QAB1(D)
- Vars
- K(e);S_FLIGHT,XP(G)::P=Q
- Refutation
- Q(j);XP(F)
- Try
- P(G);XP(h)
- Threat
- P=Q
- Vars
- K(e);S_FLIGHT::P=Q
- Q(j);XP(I)::P=Q
- P(i);XP(I)::P=Q
- P(b);::P=Q
- Q(j);::P=Q
- B(a);::P=Q
- P(i);::P=Q
- Refutation
- P(g);XP(F)
- Try
- P(G);
- Threat
- P=Q
- Vars
- Q(j);XP(I)::P=Q
- P(g);OGATEB,XP(F)::QAR2(D),XP(h)
- P(i);XP(I)::P=Q
- P(b);::P=Q
- Q(j);::P=Q
- B(a);::P=Q
- P(i);::P=Q
- Refutation
- K(e);S_FLIGHT
- Try
- P(J);
- Threat
- DUALS(2)
- Refutation
- P(h);P_SPINP(h),XP(G)
- Try
- P(J);
- Threat
- DUALS(2)
- Refutation
- P(h);P_SPINP(h),XP(G)
- Try
- Actual
- R(H);P_PINP(g),XP(h)
- Threat
- R1(H),XP(g)
- Vars
- K(e);N_SPINP(g),S_FLIGHT,XP(G)::P=Q
- Q(j);SBLOCK::QAB1(D)
- P(d);SBLOCK::B(B)
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).