MESON Chess Problem Database
Problem Display
PID: 4828 (1nB2B2/K1p2p2/P1k5/1p1pRP2/8/1p6/1r6/Q7 w - - 0 1)
Locock, Charles Dealtry
England, 1892
#2
7 + 8
SOLUTION
- SOUND
- Sets
- 1...Rb1
- 2.Qc3#
- 1...Ra2
- 2.Qc3#
- 1...Rd2
- 2.Qc3#
- 1...Re2
- 2.Qc3#
- 1...Rf2
- 2.Qc3#
- 1...Rg2
- 2.Qc3#
- 1...Rh2
- 2.Qc3#
- 1...Sxa6
- 2.Qxa6#
- 1...Sd7
- 2.Bb7#
- 1...b4
- 2.Qa4#
- 1...d4
- 2.Rc5#
- 1...f6
- 2.Re6#
- 1...Rb1
- Tries
- 1.Be7?
- 1...Sxa6
- 2.Qxa6#
- 1...b4
- 2.Qa4#
- 1...Rb1
- 2.Qc3#
- 1...Ra2
- 2.Qc3#
- 1...Rd2
- 2.Qc3#
- 1...Re2
- 2.Qc3#
- 1...Rf2
- 2.Qc3#
- 1...Rg2
- 2.Qc3#
- 1...Rh2
- 2.Qc3#
- 1...Sd7
- 2.Bb7#
- 1...d4
- 2.Rc5#
- 1...f6
- 2.Re6#
- 1...Rc2!
- 1...Sxa6
- 1.Re1?
- 1...Sxa6
- 2.Qxa6#
- 1...b4
- 2.Qa4#
- 1...Rc2
- 2.Qf6#
- 1...Rb1
- 2.Qc3#
- 2.Qf6#
- 1...Ra2
- 2.Qc3#
- 2.Qf6#
- 1...Rd2
- 2.Qc3#
- 2.Qf6#
- 1...Re2
- 2.Qc3#
- 1...Rf2
- 2.Qc3#
- 2.Qf6#
- 1...Rg2
- 2.Qc3#
- 2.Qf6#
- 1...Rh2
- 2.Qc3#
- 2.Qf6#
- 1...Sd7
- 2.Bb7#
- 1...f6
- 2.Re6#
- 1...d4!
- 1...Sxa6
- 1.Re3?
- threat
- 2.Rc3#
- 1...Sxa6
- 2.Qxa6#
- 1...b4
- 2.Qa4#
- 1...Rc2
- 2.Qf6#
- 1...Sd7
- 2.Bb7#
- 1...d4!
- threat
- 1.Rxd5?
- threat
- 2.Bb7#
- 2.Rc5#
- 1...Sxa6
- 2.Bb7#
- 1...Rc2
- 2.Bb7#
- 1...Sd7
- 2.Bb7#
- 1...Kxd5!
- threat
- 1.Re8?
- 1...Sxa6
- 2.Qxa6#
- 1...b4
- 2.Qa4#
- 1...Rc2
- 2.Qf6#
- 1...Rb1
- 2.Qc3#
- 2.Qf6#
- 1...Ra2
- 2.Qc3#
- 2.Qf6#
- 1...Rd2
- 2.Qc3#
- 2.Qf6#
- 1...Re2
- 2.Qc3#
- 1...Rf2
- 2.Qc3#
- 2.Qf6#
- 1...Rg2
- 2.Qc3#
- 2.Qf6#
- 1...Rh2
- 2.Qc3#
- 2.Qf6#
- 1...Sd7
- 2.Bb7#
- 1...f6
- 2.Re6#
- 1...d4!
- 1...Sxa6
- 1.Qd1?
- threat
- 2.Qxd5#
- 1...d4
- 2.Rc5#
- 2.Qf3#
- 1...Rd2!
- threat
- 1.Qa3?
- threat
- 2.Qc5#
- 1...Sxa6
- 2.Qxa6#
- 1...b4
- 2.Qa4#
- 1...Sd7
- 2.Bb7#
- 1...Rc2!
- threat
- 1.Qa5?
- threat
- 2.Qc3#
- 1...Sxa6
- 2.Qxa6#
- 1...Sd7
- 2.Bb7#
- 1...b4
- 2.Qa4#
- 2.Qc5#
- 2.Qxd5#
- 1...d4
- 2.Rc5#
- 2.Qxb5#
- 1...Rc2!
- threat
- 1.f6?
- 1...Sxa6
- 2.Qxa6#
- 1...b4
- 2.Qa4#
- 1...Rb1
- 2.Qc3#
- 1...Ra2
- 2.Qc3#
- 1...Rd2
- 2.Qc3#
- 1...Re2
- 2.Qc3#
- 1...Rf2
- 2.Qc3#
- 1...Rg2
- 2.Qc3#
- 1...Rh2
- 2.Qc3#
- 1...Sd7
- 2.Bb7#
- 1...d4
- 2.Rc5#
- 1...Rc2!
- 1...Sxa6
- 1.Be7?
- Keys
- 1.Re2!
- 1...Rxe2
- 2.Qc3#
- 1...Sxa6
- 2.Qxa6#
- 1...b4
- 2.Qa4#
- 1...d4
- 2.Qh1#
- 1...Rc2
- 2.Qf6#
- 1...Rb1
- 2.Qc3#
- 2.Qf6#
- 1...Ra2
- 2.Qc3#
- 2.Qf6#
- 1...Rd2
- 2.Qc3#
- 2.Qf6#
- 1...Sd7
- 2.Bb7#
- 1...f6
- 2.Re6#
- 1...Rxe2
- 1.Re2!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 1
- ADDED MATES = 1
- REMOVED MATES = 6
- Sets
- R(a);OGATE::QAR(A)
- R(a);OGATE,P_PINP(D)::QAR(A)
- S(h);OGATE,XP(D)::QAR2(A),XS(h)
- S(h);SBLOCK::B(F)
- P(c);OGATEB::QAB(A)
- P(d);OGATE::R1(B)
- P(g);N_GUARD::R(B)
- Tries
- Try
- B(G);
- Vars
- S(h);OGATE,XP(D)::QAR2(A),XS(h)
- P(c);OGATEB::QAB(A)
- R(a);OGATE::QAR(A)
- R(a);OGATE,P_PINP(D)::QAR(A)
- S(h);SBLOCK::B(F)
- P(d);OGATE::R1(B)
- P(g);N_GUARD::R(B)
- Refutation
- R(a);
- Try
- R(B);
- Vars
- S(h);OGATE,XP(D)::QAR2(A),XS(h)
- P(c);OGATEB::QAB(A)
- R(a);OGATE::QAR(A)
- S(h);SBLOCK::B(F)
- P(g);N_GUARD::R(B)
- Refutation
- P(d);
- Try
- R(B);
- Threat
- R(B)
- Vars
- S(h);OGATE,XP(D)::QAR2(A),XS(h)
- P(c);OGATEB::QAB(A)
- R(a);OGATE::QAR(A)
- S(h);SBLOCK::B(F)
- Refutation
- P(d);
- Try
- R(B);XP(d)
- Threat
- DUALS(2)
- Vars
- S(h);XP(D)::B(F)
- R(a);::B(F)
- S(h);::B(F)
- Refutation
- K(e);S_FLIGHT,XR(B)
- Try
- R(B);
- Vars
- S(h);OGATE,XP(D)::QAR2(A),XS(h)
- P(c);OGATEB::QAB(A)
- R(a);OGATE::QAR(A)
- S(h);SBLOCK::B(F)
- P(g);N_GUARD::R(B)
- Refutation
- P(d);
- Try
- Q(A);
- Threat
- QAB1(A),XP(d)
- Refutation
- R(a);
- Try
- Q(A);
- Threat
- QAR1(A)
- Vars
- S(h);OGATE,XP(D)::QAR2(A),XS(h)
- P(c);OGATEB::QAB(A)
- S(h);SBLOCK::B(F)
- Refutation
- R(a);
- Try
- Q(A);
- Threat
- QAR(A)
- Vars
- S(h);OGATE,XP(D)::QAR2(A),XS(h)
- S(h);SBLOCK::B(F)
- Refutation
- R(a);
- Try
- P(C);
- Vars
- S(h);OGATE,XP(D)::QAR2(A),XS(h)
- P(c);OGATEB::QAB(A)
- R(a);OGATE::QAR(A)
- R(a);OGATE,P_PINP(D)::QAR(A)
- S(h);SBLOCK::B(F)
- P(d);OGATE::R1(B)
- Refutation
- R(a);
- Try
- Actual
- R(B);
- Vars
- R(a);OGATE,XR(B)::QAR(A)
- S(h);OGATE,XP(D)::QAR2(A),XS(h)
- P(c);OGATEB::QAB(A)
- P(d);OGATEB::QAB(A)
- R(a);OGATE::QAR(A)
- S(h);SBLOCK::B(F)
- P(g);N_GUARD::R(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).