MESON Chess Problem Database
Problem Display
PID: 40710 (1N2rQ2/3R4/1k5r/R7/PP6/K1p5/3Nqb2/8 w - - 0 1)
Barnes, Barry Peter
The Tablet, 1962
#2
8 + 6
| 4199 | Barnes about Chess Problems | 2001 |
SOLUTION
- SOUND
- Sets
- 1...Qd1
- 2.Sc4#
- 2.Rb5#
- 2.Ra6#
- 1...Qf3
- 2.Sc4#
- 2.Rb5#
- 2.Ra6#
- 1...Qc4
- 2.Sxc4#
- 1...Qg4
- 2.Rb5#
- 2.Ra6#
- 1...Qb5
- 2.Rxb5#
- 1...Qh5
- 2.Sc4#
- 2.Ra6#
- 1...Qa6
- 2.Rxa6#
- 1...Qe1
- 2.Sc4#
- 2.Rb5#
- 2.Ra6#
- 1...Qxd2
- 2.Rb5#
- 2.Ra6#
- 1...Qe3
- 2.Sc4#
- 2.Rb5#
- 2.Ra6#
- 1...Qe4
- 2.Rb5#
- 2.Ra6#
- 1...Qe5
- 2.Sc4#
- 2.Ra6#
- 1...Qe6
- 2.Rb5#
- 2.Ra6#
- 1...Qe7
- 2.Sc4#
- 2.Rb5#
- 2.Ra6#
- 1...Rh1
- 2.Qd6#
- 1...Rh2
- 2.Qd6#
- 1...Rh3
- 2.Qd6#
- 1...Rh4
- 2.Qd6#
- 1...Rh5
- 2.Qd6#
- 1...Rd6
- 2.Qxd6#
- 1...Rh7
- 2.Qd6#
- 1...Rh8
- 2.Qd6#
- 1...Re3
- 2.Qc5#
- 2.Qd8#
- 1...Re4
- 2.Qd8#
- 1...Re5
- 2.Qd8#
- 1...Re6
- 2.Qd8#
- 1...Re7
- 2.Qd8#
- 1...Rd8
- 2.Qxd8#
- 1...Be1
- 2.Qc5#
- 1...Bg3
- 2.Qc5#
- 1...Bh4
- 2.Qc5#
- 1...Bc5
- 2.Qxc5#
- 1...Qd1
- Tries
- 1.Raa7?
- threat
- 2.Rab7#
- 2.Rdb7#
- 1...Qa6
- 2.Rxa6#
- 1...Qf3
- 2.Sc4#
- 2.Ra6#
- 1...Qe4
- 2.Ra6#
- 1...Qe7
- 2.Sc4#
- 2.Ra6#
- 2.Rab7#
- 1...Rh7
- 2.Rab7#
- 2.Qd6#
- 1...Re7
- 2.Rab7#
- 2.Qd8#
- 1...Rxb8!
- threat
- 1.Qxh6+?
- 1...Qe6
- 2.Sc4#
- 2.Rb5#
- 2.Ra6#
- 1...Re6!
- 1...Qe6
- 1.Qxf2+?
- 1...Qxf2
- 2.Sc4#
- 2.Rb5#
- 2.Ra6#
- 1...Qe3
- 2.Sc4#
- 2.Rb5#
- 2.Ra6#
- 1...Re3!
- 1...Qxf2
- 1.Qf6+?
- 1...Qe6
- 2.Sc4#
- 2.Rb5#
- 2.Ra6#
- 1...Re6
- 2.Qd8#
- 1...Rxf6!
- 1...Qe6
- 1.Raa7?
- Keys
- 1.Re5!
- threat
- 2.a5#
- 1...Qxe5
- 2.Sc4#
- 1...Rxe5
- 2.Qd8#
- 1...Rxb8
- 2.Qxh6#
- 1...Qa6
- 2.Qxf2#
- 1...Qb5
- 2.Rxb5#
- 1...Bc5
- 2.Qxc5#
- threat
- 1.Re5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 2
- REMOVED MATES = 16
- Sets
- Q(a);N_GUARD::S(A),XQ(a)
- Q(a);N_GUARD::R1(E),XQ(a)
- R(e);N_GUARD::QAR2(H)
- R(e);N_GUARD::QAR2(H),XR(e)
- R(f);OGATE::QAB(H)
- R(f);OGATE::QAB(H),XR(f)
- B(b);N_GUARD::QAB1(H)
- B(b);N_GUARD,P_PINP(D)::QAB1(H),XB(b)
- Tries
- Try
- R(E);
- Threat
- DUALS(2)
- Vars
- Q(a);N_GUARD,P_PINP(C)::R1(E),XQ(a)
- Q(a);N_GUARD::R1(E)
- Refutation
- R(f);XS(G)
- Try
- Q(H);CHECK,XR(e)
- Refutation
- R(f);P_SPINR(f)
- Try
- Q(H);CHECK,XB(b)
- Refutation
- R(f);P_SPINR(f)
- Try
- Q(H);CHECK
- Vars
- R(f);N_GUARD,P_SPINR(f)::QAB(H)
- Refutation
- R(e);XQ(H)
- Try
- Actual
- R(E);
- Threat
- P(C)
- Vars
- Q(a);N_GUARD,XR(E)::S(A)
- R(f);OGATE,XR(E)::QAB(H)
- R(f);N_GUARD,XS(G)::QAR(H),XR(e)
- Q(a);N_GUARD,P_PINP(C)::QAB(H),XB(b)
- Q(a);N_GUARD::R1(E),XQ(a)
- B(b);N_GUARD,P_PINP(D)::QAB1(H),XB(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).