MESON Chess Problem Database
Problem Display
PID: 16993 (8/8/1p5p/1P4pP/2N1Q1Kn/3BP1pN/rp1p4/1Rnkq2R w - - 0 1)
Warton, Joseph John
Warton, Thomas Joseph
Chess, 1945
#2
10 + 11
SOLUTION
- SOUND
- Sets
- 1...Qf1
- 2.Rxf1#
- 1...Qg1
- 2.Rxg1#
- 1...Qxh1
- 2.Qxh1#
- 1...Ra1
- 2.Sxb2#
- 1...Ra3
- 2.Sxb2#
- 1...Ra4
- 2.Sxb2#
- 1...Ra5
- 2.Sxb2#
- 1...Ra6
- 2.Sxb2#
- 1...Ra7
- 2.Sxb2#
- 1...Ra8
- 2.Sxb2#
- 1...Sg2
- 2.Qf3#
- 1...Sf3
- 2.Qxf3#
- 1...Sf5
- 2.Qf3#
- 1...Sg6
- 2.Qf3#
- 1...g2
- 2.Sf2#
- 1...Qf1
- Tries
- 1.Sf4?
- threat
- 2.Bc2#
- 2.Be2#
- 1...Qxh1
- 2.Qxh1#
- 1...Qf1
- 2.Rxf1#
- 1...Qg1
- 2.Rxg1#
- 1...gxf4!
- threat
- 1.Sa3?
- threat
- 2.Qa4#
- 1...Qxh1
- 2.Qxh1#
- 1...Qf1
- 2.Rxf1#
- 1...Qg1
- 2.Rxg1#
- 1...Rxa3!
- threat
- 1.Rf1?
- 1...Ra1
- 2.Sxb2#
- 1...Ra3
- 2.Sxb2#
- 1...Ra4
- 2.Sxb2#
- 1...Ra5
- 2.Sxb2#
- 1...Ra6
- 2.Sxb2#
- 1...Ra7
- 2.Sxb2#
- 1...Ra8
- 2.Sxb2#
- 1...Sg2
- 2.Qf3#
- 1...Sf3
- 2.Qxf3#
- 1...Sf5
- 2.Qf3#
- 1...Sg6
- 2.Qf3#
- 1...g2
- 2.Sf2#
- 1...Qxf1!
- 1...Ra1
- 1.Rg1?
- 1...Qf1
- 2.Rxf1#
- 1...Ra1
- 2.Sxb2#
- 1...Ra3
- 2.Sxb2#
- 1...Ra4
- 2.Sxb2#
- 1...Ra5
- 2.Sxb2#
- 1...Ra6
- 2.Sxb2#
- 1...Ra7
- 2.Sxb2#
- 1...Ra8
- 2.Sxb2#
- 1...Sg2
- 2.Qf3#
- 1...Sf3
- 2.Qxf3#
- 1...Sf5
- 2.Qf3#
- 1...Sg6
- 2.Qf3#
- 1...g2
- 2.Sf2#
- 1...Qxg1!
- 1...Qf1
- 1.Qg2?
- threat
- 2.Qxd2#
- 2.Qe2#
- 1...Sf3
- 2.Qxf3#
- 2.Qe2#
- 1...Sxg2!
- threat
- 1.Qd5?
- 1...Qxh1
- 2.Qxh1#
- 1...Qf1
- 2.Rxf1#
- 1...Qg1
- 2.Rxg1#
- 1...Ra1
- 2.Sxb2#
- 1...Ra3
- 2.Sxb2#
- 1...Ra5
- 2.Sxb2#
- 1...Ra6
- 2.Sxb2#
- 1...Ra7
- 2.Sxb2#
- 1...Ra8
- 2.Sxb2#
- 1...Sg2
- 2.Qf3#
- 1...Sf3
- 2.Qxf3#
- 1...Sf5
- 2.Qf3#
- 1...Sg6
- 2.Qf3#
- 1...g2
- 2.Sf2#
- 1...Ra4!
- 1...Qxh1
- 1.Qc6?
- 1...Qxh1
- 2.Qxh1#
- 1...Qf1
- 2.Rxf1#
- 1...Qg1
- 2.Rxg1#
- 1...Ra1
- 2.Sxb2#
- 1...Ra3
- 2.Sxb2#
- 1...Ra5
- 2.Sxb2#
- 1...Ra6
- 2.Sxb2#
- 1...Ra7
- 2.Sxb2#
- 1...Ra8
- 2.Sxb2#
- 1...Sg2
- 2.Qf3#
- 1...Sf3
- 2.Qxf3#
- 1...Sf5
- 2.Qf3#
- 1...Sg6
- 2.Qf3#
- 1...g2
- 2.Sf2#
- 1...Ra4!
- 1...Qxh1
- 1.Qb7?
- 1...Qxh1
- 2.Qxh1#
- 1...Qf1
- 2.Rxf1#
- 1...Qg1
- 2.Rxg1#
- 1...Ra1
- 2.Sxb2#
- 1...Ra3
- 2.Sxb2#
- 1...Ra5
- 2.Sxb2#
- 1...Ra6
- 2.Sxb2#
- 1...Ra7
- 2.Sxb2#
- 1...Ra8
- 2.Sxb2#
- 1...Sg2
- 2.Qf3#
- 1...Sf3
- 2.Qxf3#
- 1...Sf5
- 2.Qf3#
- 1...Sg6
- 2.Qf3#
- 1...g2
- 2.Sf2#
- 1...Ra4!
- 1...Qxh1
- 1.Sf4?
- Keys
- 1.Qa8!
- 1...Qxh1
- 2.Qxh1#
- 1...Rxa8
- 2.Sxb2#
- 1...Qf1
- 2.Rxf1#
- 1...Qg1
- 2.Rxg1#
- 1...Ra4
- 2.Qxa4#
- 1...Ra1
- 2.Sxb2#
- 1...Ra3
- 2.Sxb2#
- 1...Ra5
- 2.Sxb2#
- 1...Ra6
- 2.Sxb2#
- 1...Ra7
- 2.Sxb2#
- 1...Sg2
- 2.Qf3#
- 1...Sf3
- 2.Qxf3#
- 1...Sf5
- 2.Qf3#
- 1...Sg6
- 2.Qf3#
- 1...g2
- 2.Sf2#
- 1...Qxh1
- 1.Qa8!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 1
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- Q(c);OGATEB::R(B),XQ(c)
- Q(c);N_SPINQ(c),OGATE,XR(B)::QAR(G),XQ(c)
- R(d);N_GUARD::S(F),XP(e)
- S(h);N_GUARD::QAB(G)
- S(h);N_GUARD::QAB(G),XS(h)
- P(g);N_GUARD::S(E)
- Tries
- Try
- S(E);
- Threat
- DUALS(2)
- Vars
- Q(c);N_SPINQ(c),OGATE,XR(B)::QAR(G),XQ(c)
- Q(c);OGATEB::R(B),XQ(c)
- Refutation
- P(i);XS(E)
- Try
- S(F);
- Threat
- QAB(G)
- Vars
- Q(c);N_SPINQ(c),OGATE,XR(B)::QAR(G),XQ(c)
- Q(c);OGATEB::R(B),XQ(c)
- Refutation
- R(d);XS(F)
- Try
- R(B);
- Vars
- R(d);N_GUARD::S(F),XP(e)
- S(h);N_GUARD::QAB(G)
- S(h);N_GUARD::QAB(G),XS(h)
- P(g);N_GUARD::S(E)
- Refutation
- Q(c);N_SPINQ(c),XR(B)
- Try
- R(B);
- Vars
- Q(c);OGATEB::R(B),XQ(c)
- R(d);N_GUARD::S(F),XP(e)
- S(h);N_GUARD::QAB(G)
- S(h);N_GUARD::QAB(G),XS(h)
- P(g);N_GUARD::S(E)
- Refutation
- Q(c);N_SPINQ(c),XR(B)
- Try
- Q(G);
- Threat
- DUALS(2)
- Refutation
- S(h);XQ(G)
- Try
- Q(G);
- Vars
- Q(c);N_SPINQ(c),OGATE,XR(B)::QAR(G),XQ(c)
- Q(c);OGATEB::R(B),XQ(c)
- R(d);N_GUARD::S(F),XP(e)
- S(h);N_GUARD::QAB(G)
- S(h);N_GUARD::QAB(G),XS(h)
- P(g);N_GUARD::S(E)
- Refutation
- R(d);P_PINS(F)
- Try
- Q(G);
- Vars
- Q(c);N_SPINQ(c),OGATE,XR(B)::QAR(G),XQ(c)
- Q(c);OGATEB::R(B),XQ(c)
- R(d);N_GUARD::S(F),XP(e)
- S(h);N_GUARD::QAB(G)
- S(h);N_GUARD::QAB(G),XS(h)
- P(g);N_GUARD::S(E)
- Refutation
- R(d);P_PINS(F)
- Try
- Q(G);
- Vars
- Q(c);N_SPINQ(c),OGATE,XR(B)::QAR(G),XQ(c)
- Q(c);OGATEB::R(B),XQ(c)
- R(d);N_GUARD::S(F),XP(e)
- S(h);N_GUARD::QAB(G)
- S(h);N_GUARD::QAB(G),XS(h)
- P(g);N_GUARD::S(E)
- Refutation
- R(d);P_PINS(F)
- Try
- Actual
- Q(G);
- Vars
- Q(c);N_SPINQ(c),OGATE,XR(B)::QAR(G),XQ(c)
- R(d);N_GUARD,XQ(G)::S(F),XP(e)
- Q(c);OGATEB::R(B),XQ(c)
- R(d);N_GUARD,P_PINS(F)::QAB(G),XR(d)
- R(d);N_GUARD::S(F),XP(e)
- S(h);N_GUARD::QAB(G)
- S(h);N_GUARD::QAB(G),XS(h)
- P(g);N_GUARD::S(E)
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).