MESON Chess Problem Database
Problem Display
PID: 251631 (1R3B1n/7b/8/p2pp3/1QBPk1P1/3R4/2K1p1N1/8 w - - 0 1)
Rice, John Michael
The Problemist Supplement, 2021
#2
9 + 7
SOLUTION
- SOUND
- Sets
- 1...e1Q
- 2.Qxe1#
- 1...e1S+
- 2.Qxe1#
- 1...e1B
- 2.Qxe1#
- 1...e1R
- 2.Qxe1#
- 1...dxc4
- 2.Qb7#
- 1...exd4
- 2.Re8#
- 2.Qe7#
- 1...e1Q
- Tries
- 1.Ba2?
- threat
- 2.Re3#
- 1...e1S+
- 2.Qxe1#
- 1...e1Q
- 2.Qxe1#
- 1...e1R
- 2.Qxe1#
- 1...axb4!
- threat
- 1.Bb3?
- threat
- 2.Re3#
- 1...e1S+
- 2.Qxe1#
- 1...e1Q
- 2.Qxe1#
- 1...e1R
- 2.Qxe1#
- 1...axb4!
- threat
- 1.Bb5?
- threat
- 2.Re3#
- 1...e1S+
- 2.Qxe1#
- 1...e1Q
- 2.Qxe1#
- 1...e1R
- 2.Qxe1#
- 1...axb4!
- threat
- 1.Ba6?
- threat
- 2.Re3#
- 1...e1S+
- 2.Qxe1#
- 1...e1Q
- 2.Qxe1#
- 1...e1R
- 2.Qxe1#
- 1...axb4!
- threat
- 1.Rb5?
- threat
- 2.Bxd5#
- 1...e1S+
- 2.Qxe1#
- 1...dxc4
- 2.Rxe5#
- 1...exd4
- 2.Qe7#
- 1...Bg8!
- threat
- 1.Rd8?
- threat
- 2.Bxd5#
- 1...e1S+
- 2.Qxe1#
- 1...dxc4
- 2.Re3#
- 2.Qb7#
- 1...exd4
- 2.Re8#
- 2.Qe7#
- 1...Bg8!
- threat
- 1.Qd2?
- threat
- 2.Re3#
- 2.Qe3#
- 2.Qxe2#
- 1...e1S+
- 2.Qxe1#
- 1...exd4
- 2.Re8#
- 2.Qf4#
- 2.Qxe2#
- 1...e1Q
- 2.Qxe1#
- 1...e1B
- 2.Re3#
- 2.Qxe1#
- 2.Qe3#
- 2.Qe2#
- 1...e1R
- 2.Qxe1#
- 1...dxc4!
- threat
- 1.Qc3?
- threat
- 2.Re3#
- 1...e1S+
- 2.Qxe1#
- 1...exd4
- 2.Re8#
- 2.Qxd4#
- 1...e1Q
- 2.Qxe1#
- 1...e1R
- 2.Qxe1#
- 1...dxc4!
- threat
- 1.Qxa5?
- threat
- 2.Bxd5#
- 2.Qxd5#
- 1...e1S+
- 2.Qxe1#
- 1...dxc4
- 2.Qxe5#
- 2.Qa8#
- 1...exd4
- 2.Re8#
- 2.Qxd5#
- 1...Bg8!
- threat
- 1.Qc5?
- threat
- 2.Bxd5#
- 2.Re3#
- 2.Qxd5#
- 1...dxc4
- 2.Re3#
- 2.Qxe5#
- 2.Qc6#
- 1...exd4
- 2.Re8#
- 2.Qxd4#
- 2.Qe7#
- 2.Qxd5#
- 1...e1Q
- 2.Bxd5#
- 2.Qxd5#
- 1...e1R
- 2.Bxd5#
- 2.Qxd5#
- 1...Bg8
- 2.Re3#
- 1...e1S+!
- threat
- 1.Qd6?
- threat
- 2.Bxd5#
- 2.Qxe5#
- 2.Qxd5#
- 1...dxc4
- 2.Re3#
- 2.Qxe5#
- 2.Qc6#
- 1...exd4
- 2.Bxd5#
- 2.Re8#
- 2.Qf4#
- 2.Qe7#
- 2.Qxd5#
- 2.Qe6#
- 1...Bg8
- 2.Qxe5#
- 1...Sg6
- 2.Bxd5#
- 2.Qxd5#
- 1...Sf7
- 2.Bxd5#
- 2.Qxd5#
- 1...e1S+!
- threat
- 1.Ba2?
- Keys
- 1.Bc5!
- threat
- 2.Re3#
- 1...e1S+
- 2.Qxe1#
- 1...dxc4
- 2.Qb7#
- 1...exd4
- 2.Re8#
- 1...e1Q
- 2.Qxe1#
- 1...e1R
- 2.Qxe1#
- threat
- 1.Bc5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 1
- Sets
- P(a);OGATEB::QAR(D),XQ(a)
- P(a);CHECK,OGATEB::QAR(D),XS(a)
- P(a);OGATEB::QAR(D),XB(a)
- P(a);OGATEB::QAR(D),XR(a)
- P(d);OGATEB,XB(E)::QAB(D)
- Tries
- Try
- B(E);
- Threat
- R1(C)
- Vars
- P(a);CHECK,OGATEB::QAR(D),XS(a)
- P(a);OGATEB::QAR(D),XQ(a)
- P(a);OGATEB::QAR(D),XR(a)
- Refutation
- P(c);XQ(D)
- Try
- B(E);
- Threat
- R1(C)
- Vars
- P(a);CHECK,OGATEB::QAR(D),XS(a)
- P(a);OGATEB::QAR(D),XQ(a)
- P(a);OGATEB::QAR(D),XR(a)
- Refutation
- P(c);XQ(D)
- Try
- B(E);
- Threat
- R1(C)
- Vars
- P(a);CHECK,OGATEB::QAR(D),XS(a)
- P(a);OGATEB::QAR(D),XQ(a)
- P(a);OGATEB::QAR(D),XR(a)
- Refutation
- P(c);XQ(D)
- Try
- B(E);
- Threat
- R1(C)
- Vars
- P(a);CHECK,OGATEB::QAR(D),XS(a)
- P(a);OGATEB::QAR(D),XQ(a)
- P(a);OGATEB::QAR(D),XR(a)
- Refutation
- P(c);XQ(D)
- Try
- R(H);
- Threat
- B(E),XP(d)
- Vars
- P(a);CHECK,OGATEB::QAR(D),XS(a)
- P(d);OGATE,XB(E)::R1(H),XP(e)
- P(e);OGATEB,XP(F)::QAR(D)
- Refutation
- B(f);
- Try
- R(H);
- Threat
- B(E),XP(d)
- Vars
- P(a);CHECK,OGATEB::QAR(D),XS(a)
- Refutation
- B(f);
- Try
- Q(D);
- Threat
- DUALS(3)
- Vars
- P(a);CHECK,OGATEB::QAR(D),XS(a)
- P(a);OGATEB::QAR(D),XQ(a)
- P(a);OGATEB::QAR(D),XR(a)
- Refutation
- P(d);XB(E)
- Try
- Q(D);
- Threat
- R1(C)
- Vars
- P(a);CHECK,OGATEB::QAR(D),XS(a)
- P(a);OGATEB::QAR(D),XQ(a)
- P(a);OGATEB::QAR(D),XR(a)
- Refutation
- P(d);XB(E)
- Try
- Q(D);XP(c)
- Threat
- DUALS(2)
- Vars
- P(a);CHECK,OGATEB::QAR(D),XS(a)
- Refutation
- B(f);
- Try
- Q(D);
- Threat
- DUALS(3)
- Vars
- B(f);::R1(C)
- Refutation
- P(a);CHECK
- Try
- Q(D);
- Threat
- DUALS(3)
- Vars
- B(f);::QAR1(D),XP(e)
- Refutation
- P(a);CHECK
- Try
- Actual
- B(I);
- Threat
- R1(C)
- Vars
- P(a);CHECK,OGATEB::QAR(D),XS(a)
- P(d);OGATEB,XB(E)::QAB(D)
- P(e);OGATEB,XP(F)::R(H)
- P(a);OGATEB::QAR(D),XQ(a)
- P(a);OGATEB::QAR(D),XR(a)
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).