MESON Chess Problem Database
Problem Display
PID: 22040 (4Q3/1p1N1p2/4Bpr1/2p5/2r1k1N1/2p1n1K1/2n1R3/3R4 w - - 0 1)
Warton, Thomas Joseph
Morning Post, 1923
#2
7 + 10
SOLUTION
- SOUND
- Sets
- 1...Ra4
- 2.Sxc5#
- 1...Rb4
- 2.Sxc5#
- 1...Rd4
- 2.Sxc5#
- 1...Rxg4+
- 2.Bxg4#
- 1...Rg5
- 2.Sxf6#
- 1...Rh6
- 2.Sf2#
- 1...Rg7
- 2.Sxf6#
- 1...Rg8
- 2.Sxf6#
- 1...Sa1
- 2.Rxe3#
- 1...Se1
- 2.Rxe3#
- 1...Sa3
- 2.Rxe3#
- 1...Sb4
- 2.Rxe3#
- 1...Sd4
- 2.Rxe3#
- 1...f5
- 2.Bd5#
- 1...b5
- 2.Qa8#
- 1...b6
- 2.Qa8#
- 1...fxe6
- 2.Qxe6#
- 1...Ra4
- Tries
- 1.Rdd2?
- 1...Rxg4+
- 2.Bxg4#
- 1...fxe6
- 2.Qxe6#
- 1...Rg5
- 2.Sxf6#
- 1...Ra4
- 2.Sxc5#
- 1...Rb4
- 2.Sxc5#
- 1...Rd4
- 2.Sxc5#
- 1...Rh6
- 2.Sf2#
- 1...Rg7
- 2.Sxf6#
- 1...Rg8
- 2.Sxf6#
- 1...Sa1
- 2.Rxe3#
- 1...Se1
- 2.Rxe3#
- 1...Sa3
- 2.Rxe3#
- 1...Sb4
- 2.Rxe3#
- 1...Sd4
- 2.Rxe3#
- 1...f5
- 2.Bd5#
- 1...b5
- 2.Qa8#
- 1...b6
- 2.Qa8#
- 1...cxd2!
- 1...Rxg4+
- 1.Rd6?
- 1...Rxg4+
- 2.Bxg4#
- 1...fxe6
- 2.Qxe6#
- 1...Rd4
- 2.Sxc5#
- 1...Sd4
- 2.Rxe3#
- 1...Rg5
- 2.Sxf6#
- 1...Ra4
- 2.Sxc5#
- 1...Rb4
- 2.Sxc5#
- 1...Rh6
- 2.Sf2#
- 1...Rg7
- 2.Sxf6#
- 1...Rg8
- 2.Sxf6#
- 1...Sa1
- 2.Rxe3#
- 1...Se1
- 2.Rxe3#
- 1...Sa3
- 2.Rxe3#
- 1...Sb4
- 2.Rxe3#
- 1...b5
- 2.Qa8#
- 1...b6
- 2.Qa8#
- 1...f5!
- 1...Rxg4+
- 1.Ree1?
- 1...Rxg4+
- 2.Bxg4#
- 1...fxe6
- 2.Qxe6#
- 1...Rg5
- 2.Sxf6#
- 1...Ra4
- 2.Sxc5#
- 1...Rb4
- 2.Sxc5#
- 1...Rd4
- 2.Sxc5#
- 1...Rh6
- 2.Sf2#
- 1...Rg7
- 2.Sxf6#
- 1...Rg8
- 2.Sxf6#
- 1...Sa1
- 2.Rxe3#
- 1...Sa3
- 2.Rxe3#
- 1...Sb4
- 2.Rxe3#
- 1...Sd4
- 2.Rxe3#
- 1...f5
- 2.Bd5#
- 1...b5
- 2.Qa8#
- 1...b6
- 2.Qa8#
- 1...Sxe1!
- 1...Rxg4+
- 1.Qb8?
- threat
- 2.Qf4#
- 2.Qxb7#
- 1...fxe6
- 2.Qf4#
- 1...Rg5
- 2.Sxf6#
- 2.Qf4#
- 1...Rb4
- 2.Sxc5#
- 2.Qf4#
- 1...Rd4
- 2.Sxc5#
- 2.Qf4#
- 1...Sb4
- 2.Rxe3#
- 2.Qf4#
- 1...Sd4
- 2.Rxe3#
- 2.Qf4#
- 1...b5
- 2.Qf4#
- 2.Qb7#
- 2.Qa8#
- 1...b6
- 2.Qf4#
- 2.Qb7#
- 2.Qa8#
- 1...Rxg4+!
- threat
- 1.Rdd2?
- Keys
- 1.Qg8!
- 1...Rxg4+
- 2.Qxg4#
- 1...Rxg8
- 2.Sxf6#
- 1...fxe6
- 2.Qxe6#
- 1...Rg5
- 2.Sxf6#
- 1...Ra4
- 2.Sxc5#
- 1...Rb4
- 2.Sxc5#
- 1...Rd4
- 2.Sxc5#
- 1...Rh6
- 2.Sf2#
- 1...Rg7
- 2.Sxf6#
- 1...Sa1
- 2.Rxe3#
- 1...Se1
- 2.Rxe3#
- 1...Sa3
- 2.Rxe3#
- 1...Sb4
- 2.Rxe3#
- 1...Sd4
- 2.Rxe3#
- 1...f5
- 2.Bd5#
- 1...b5
- 2.Qa8#
- 1...b6
- 2.Qa8#
- 1...Rxg4+
- 1.Qg8!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 1
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- R(d);N_GUARD::S(F),XP(f)
- R(h);CHECK,OGATE,XS(D)::QAR(G)+B(E),XR(h)
- R(h);N_GUARD::S(F),XP(g)
- R(h);N_PINS(D)::S(D)
- S(a);N_GUARD::R1(B),XS(c)
- P(g);SBLOCK::QAR(G)+B(E),DCHECK
- P(i);OGATEB::QAB(G)
- P(j);OGATE,P_SPINP(j),XB(E)::QAR2(G),XP(j)
- Tries
- Try
- R(A);
- Vars
- R(h);CHECK,OGATE,XS(D)::QAR(G)+B(E),XR(h)
- P(j);OGATE,P_SPINP(j),XB(E)::QAR2(G),XP(j)
- R(h);N_GUARD::S(F),XP(g)
- R(d);N_GUARD::S(F),XP(f)
- R(h);N_PINS(D)::S(D)
- S(a);N_GUARD::R1(B),XS(c)
- P(g);SBLOCK::QAR(G)+B(E),DCHECK
- P(i);OGATEB::QAB(G)
- Refutation
- P(b);XR(A)
- Try
- R(A);
- Vars
- R(h);CHECK,OGATE,XS(D)::QAR(G)+B(E),XR(h)
- P(j);OGATE,P_SPINP(j),XB(E)::QAR2(G),XP(j)
- R(d);N_GUARD::S(F),XP(f)
- S(a);N_GUARD::R1(B),XS(c)
- R(h);N_GUARD::S(F),XP(g)
- R(h);N_PINS(D)::S(D)
- P(i);OGATEB::QAB(G)
- Refutation
- P(g);
- Try
- R(B);
- Vars
- R(h);CHECK,OGATE,XS(D)::QAR(G)+B(E),XR(h)
- P(j);OGATE,P_SPINP(j),XB(E)::QAR2(G),XP(j)
- R(h);N_GUARD::S(F),XP(g)
- R(d);N_GUARD::S(F),XP(f)
- R(h);N_PINS(D)::S(D)
- S(a);N_GUARD::R1(B),XS(c)
- P(g);SBLOCK::QAR(G)+B(E),DCHECK
- P(i);OGATEB::QAB(G)
- Refutation
- S(a);N_SPINS(c),XR(B)
- Try
- Q(G);
- Threat
- DUALS(2)
- Vars
- P(j);XB(E)::QAR1(G)
- Refutation
- R(h);CHECK,XS(D)
- Try
- Actual
- Q(G);
- Vars
- R(h);CHECK,OGATE,XS(D)::QAR2(G),XR(h)
- R(h);N_GUARD,XQ(G)::S(F),XP(g)
- P(j);OGATE,XB(E)::QAR2(G),XP(j)
- R(h);N_GUARD::S(F),XP(g)
- R(d);N_GUARD::S(F),XP(f)
- R(h);N_PINS(D)::S(D)
- S(a);N_GUARD::R1(B),XS(c)
- P(g);SBLOCK::B(E)
- P(i);OGATEB::QAB(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).