MESON Chess Problem Database
Problem Display
PID: 55308 (2R1K1B1/r1pp1p1r/1NPkP3/1P2R1p1/8/n3p1B1/6Q1/7b w - - 0 1)
Reeves, Alfred Christopher
The Problemist, 2004
#2
10 + 10
| 136 | Problem Observer | 2005 |
SOLUTION
- SOUND
- Sets
- 1...Sb1
- 2.Sc4#
- 1...Sc2
- 2.Sc4#
- 1...Sc4
- 2.Sxc4#
- 1...Sxb5
- 2.Sc4#
- 1...dxc6
- 2.Rd8#
- 1...dxe6
- 2.Rd5#
- 2.Rd8#
- 1...fxe6
- 2.Rd5#
- 1...f5
- 2.Rd5#
- 2.Rxf5#
- 1...f6
- 2.Rd5#
- 2.Rf5#
- 2.Rxg5#
- 1...Sb1
- Tries
- 1.Qxh1?
- threat
- 2.Qd5#
- 2.Qd1#
- 1...Sxb5
- 2.Sc4#
- 2.Qd5#
- 1...dxc6
- 2.Rd8#
- 2.Qxc6#
- 2.Qd1#
- 1...dxe6
- 2.Rd5#
- 2.Rd8#
- 2.Qd1#
- 1...fxe6
- 2.Rd5#
- 2.Qd1#
- 1...Ra4
- 2.Qd5#
- 1...Rh2
- 2.Qd5#
- 1...Rh4
- 2.Qd5#
- 1...Sb1
- 2.Sc4#
- 2.Qd5#
- 1...Sc2
- 2.Sc4#
- 2.Qd5#
- 1...Sc4
- 2.Sxc4#
- 2.Qd5#
- 1...e2
- 2.Qd5#
- 1...Rxh1!
- threat
- 1.Qe4?
- threat
- 2.Rd5#
- 2.Rf5#
- 2.Rxg5#
- 2.Qb4#
- 1...Sxb5
- 2.Sc4#
- 2.Rxb5#
- 2.Rf5#
- 2.Rxg5#
- 1...dxc6
- 2.Rd5#
- 2.Rf5#
- 2.Rxg5#
- 2.Rd8#
- 1...dxe6
- 2.Rd5#
- 2.Rd8#
- 2.Qb4#
- 1...fxe6
- 2.Rd5#
- 2.Qb4#
- 1...Ra4
- 2.Rd5#
- 2.Rf5#
- 2.Rxg5#
- 1...Rh3
- 2.Rd5#
- 2.Qb4#
- 1...Rh4
- 2.Rd5#
- 1...Sc2
- 2.Sc4#
- 2.Rd5#
- 2.Rf5#
- 2.Rxg5#
- 1...Sc4
- 2.Sxc4#
- 2.Rd5#
- 1...g4
- 2.Rd5#
- 2.Rf5#
- 2.Rg5#
- 2.Rh5#
- 2.Qb4#
- 1...f5
- 2.Rd5#
- 2.Rxf5#
- 2.Qb4#
- 1...Bxe4!
- threat
- 1.Qc2?
- threat
- 2.Rxe3#
- 2.Re4#
- 2.Qc5#
- 1...Sxc2
- 2.Sc4#
- 1...dxe6
- 2.Rd5#
- 2.Rd8#
- 2.Qc5#
- 1...fxe6
- 2.Rd5#
- 2.Rxe6#
- 2.Qc5#
- 1...Ra4
- 2.Re4#
- 2.Qc5#
- 1...Rh3
- 2.Qc5#
- 1...Rh4
- 2.Qc5#
- 1...Be4
- 2.Rxe4#
- 2.Qc5#
- 1...Bd5
- 2.Rxe3#
- 2.Re4#
- 1...Sc4
- 2.Sxc4#
- 1...e2
- 2.Rxe2#
- 2.Re3#
- 2.Re4#
- 2.Qc5#
- 1...f5
- 2.Rd5#
- 2.Rxf5#
- 2.Qc5#
- 1...cxb6!
- threat
- 1.Qd2+?
- 1...Bd5
- 2.Qb4#
- 2.Qxd5#
- 1...exd2!
- 1...Bd5
- 1.exd7?
- threat
- 2.d8Q#
- 2.d8R#
- 1...Bxg2
- 2.d8Q#
- 2.d8R#
- 1...Sxb5
- 2.Sc4#
- 2.d8Q#
- 2.d8R#
- 1...Ra4
- 2.d8Q#
- 2.d8R#
- 1...Ra5
- 2.d8Q#
- 2.d8R#
- 1...Ra6
- 2.d8Q#
- 2.d8R#
- 1...Rb7
- 2.d8Q#
- 2.d8R#
- 1...Ra8
- 2.d8Q#
- 2.d8R#
- 1...Rh2
- 2.d8Q#
- 2.d8R#
- 1...Rh3
- 2.d8Q#
- 2.d8R#
- 1...Rh4
- 2.d8Q#
- 2.d8R#
- 1...Rh5
- 2.d8Q#
- 2.d8R#
- 1...Rh6
- 2.d8Q#
- 2.d8R#
- 1...Rg7
- 2.d8Q#
- 2.d8R#
- 1...Rh8
- 2.d8Q#
- 2.d8R#
- 1...Sb1
- 2.Sc4#
- 2.d8Q#
- 2.d8R#
- 1...Sc2
- 2.Sc4#
- 2.d8Q#
- 2.d8R#
- 1...Sc4
- 2.Sxc4#
- 2.d8Q#
- 2.d8R#
- 1...e2
- 2.d8Q#
- 2.d8R#
- 1...g4
- 2.d8Q#
- 2.d8R#
- 1...f5
- 2.Rd5#
- 2.Rxf5#
- 1...f6
- 2.Rd5#
- 2.Rf5#
- 2.Rxg5#
- 1...cxb6!
- threat
- 1.Qxh1?
- Keys
- 1.cxd7!
- threat
- 2.d8Q#
- 2.d8R#
- 1...Bxg2
- 2.d8Q#
- 2.d8R#
- 1...Sxb5
- 2.Sc4#
- 2.d8Q#
- 2.d8R#
- 1...cxb6
- 2.Rxe3#
- 2.Rc6#
- 1...fxe6
- 2.Rd5#
- 1...Ra4
- 2.d8Q#
- 2.d8R#
- 1...Ra5
- 2.d8Q#
- 2.d8R#
- 1...Ra6
- 2.d8Q#
- 2.d8R#
- 1...Rb7
- 2.d8Q#
- 2.d8R#
- 1...Ra8
- 2.d8Q#
- 2.d8R#
- 1...Rh2
- 2.d8Q#
- 2.d8R#
- 1...Rh3
- 2.d8Q#
- 2.d8R#
- 1...Rh4
- 2.d8Q#
- 2.d8R#
- 1...Rh5
- 2.d8Q#
- 2.d8R#
- 1...Rh6
- 2.d8Q#
- 2.d8R#
- 1...Rg7
- 2.d8Q#
- 2.d8R#
- 1...Rh8
- 2.d8Q#
- 2.d8R#
- 1...Sb1
- 2.Sc4#
- 2.d8Q#
- 2.d8R#
- 1...Sc2
- 2.Sc4#
- 2.d8Q#
- 2.d8R#
- 1...Sc4
- 2.Sxc4#
- 2.d8Q#
- 2.d8R#
- 1...e2
- 2.d8Q#
- 2.d8R#
- 1...g4
- 2.d8Q#
- 2.d8R#
- 1...c5
- 2.Rxe3#
- 2.Re4#
- 2.Rc6#
- 1...c6
- 2.Rxc6#
- 1...f5
- 2.Rd5#
- 2.Rxf5#
- 1...f6
- 2.Rd5#
- 2.Rf5#
- 2.Rxg5#
- threat
- 1.cxd7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 5
- Sets
- S(b);N_GUARD::S(E)
- S(b);N_GUARD::S(E),XS(b)
- S(b);N_GUARD,XP(C)::S(E)
- P(h);OGATEB,XP(F)::R(H)
- P(i);XP(G)::B(B)+R(D),DCHECK
- Tries
- Try
- Q(A);XB(a)
- Threat
- DUALS(2)
- Vars
- R(f);::QAR1(A)
- R(j);::QAR1(A)
- P(c);::QAR1(A)
- Refutation
- R(j);XQ(A)
- Try
- Q(A);
- Threat
- DUALS(4)
- Vars
- R(j);::B(B)+R(D),DCHECK
- Refutation
- B(a);XQ(A)
- Try
- Q(A);
- Threat
- DUALS(3)
- Vars
- S(b);N_GUARD,XQ(A)::S(E)
- R(j);::QAB1(A)
- S(b);N_GUARD::S(E),XS(b)
- Refutation
- P(g);XS(E)
- Try
- Q(A);CHECK
- Refutation
- P(c);XQ(A)
- Try
- P(G);XP(h)
- Threat
- P=Q
- Vars
- B(a);XQ(A)::P=Q
- R(f);::P=Q
- R(f);P_PINR(H)::P=Q
- R(j);::P=Q
- R(j);P_PINB(J)::P=Q
- P(c);::P=Q
- P(d);::P=Q
- Refutation
- P(g);XS(E)
- Try
- Actual
- P(F);XP(h)
- Threat
- P=Q
- Vars
- B(a);XQ(A)::P=Q
- P(i);XP(G)::B(B)+R(D),DCHECK
- R(f);::P=Q
- R(f);P_PINR(H)::P=Q
- R(j);::P=Q
- R(j);P_PINB(J)::P=Q
- P(c);::P=Q
- P(d);::P=Q
- P(g);OGATE::R1(H),XP(g)
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).