MESON Chess Problem Database
Problem Display
PID: 22039 (KR5R/PP3BNq/5Bpk/8/5P2/4np2/2r2N2/1Q1b4 w - - 0 1)
Warton, Joseph John
Warton, Thomas Joseph
Morning Post, 1923
#2
11 + 7
SOLUTION
- SOUND
- Sets
- 1...Qxh8
- 2.Rxh8#
- 1...Rc1
- 2.Qxg6#
- 1...Ra2
- 2.Qxg6#
- 1...Rb2
- 2.Qxg6#
- 1...Rd2
- 2.Qxg6#
- 1...Re2
- 2.Qxg6#
- 1...Rxf2
- 2.Qxg6#
- 1...Rc3
- 2.Qxg6#
- 1...Rc4
- 2.Qxg6#
- 1...Rc5
- 2.Qxg6#
- 1...Rc6
- 2.Qxg6#
- 1...Rc7
- 2.Qxg6#
- 1...Rc8
- 2.Qxg6#
- 1...Be2
- 2.Qh1#
- 1...Sf1
- 2.Sg4#
- 1...Sg2
- 2.Sg4#
- 1...Sc4
- 2.Sg4#
- 1...Sg4
- 2.Sxg4#
- 1...Sd5
- 2.Sg4#
- 1...Sf5
- 2.Sg4#
- 1...g5
- 2.fxg5#
- 1...Qxh8
- Tries
- 1.Be8?
- 1...Rxf2
- 2.Qxg6#
- 1...Rc1
- 2.Qxg6#
- 1...Ra2
- 2.Qxg6#
- 1...Rb2
- 2.Qxg6#
- 1...Rd2
- 2.Qxg6#
- 1...Re2
- 2.Qxg6#
- 1...Rc3
- 2.Qxg6#
- 1...Rc4
- 2.Qxg6#
- 1...Rc5
- 2.Qxg6#
- 1...Rc6
- 2.Qxg6#
- 1...Rc7
- 2.Qxg6#
- 1...Rc8
- 2.Qxg6#
- 1...Be2
- 2.Qh1#
- 1...Sf1
- 2.Sg4#
- 1...Sg2
- 2.Sg4#
- 1...Sc4
- 2.Sg4#
- 1...Sg4
- 2.Sxg4#
- 1...Sd5
- 2.Sg4#
- 1...Sf5
- 2.Sg4#
- 1...g5
- 2.fxg5#
- 1...Qxh8!
- 1...Rxf2
- 1.Rbc8?
- 1...Qxh8
- 2.Rxh8#
- 1...Rxf2
- 2.Qxg6#
- 1...Rc1
- 2.Qxg6#
- 1...Ra2
- 2.Qxg6#
- 1...Rb2
- 2.Qxg6#
- 1...Rd2
- 2.Qxg6#
- 1...Re2
- 2.Qxg6#
- 1...Rc3
- 2.Qxg6#
- 1...Rc4
- 2.Qxg6#
- 1...Rc5
- 2.Qxg6#
- 1...Rc6
- 2.Qxg6#
- 1...Rc7
- 2.Qxg6#
- 1...Be2
- 2.Qh1#
- 1...Sf1
- 2.Sg4#
- 1...Sg2
- 2.Sg4#
- 1...Sc4
- 2.Sg4#
- 1...Sg4
- 2.Sxg4#
- 1...Sd5
- 2.Sg4#
- 1...Sf5
- 2.Sg4#
- 1...g5
- 2.fxg5#
- 1...Rxc8+!
- 1...Qxh8
- 1.Rbd8?
- 1...Qxh8
- 2.Rxh8#
- 1...Rxf2
- 2.Qxg6#
- 1...Rc1
- 2.Qxg6#
- 1...Ra2
- 2.Qxg6#
- 1...Rb2
- 2.Qxg6#
- 1...Rd2
- 2.Qxg6#
- 1...Re2
- 2.Qxg6#
- 1...Rc3
- 2.Qxg6#
- 1...Rc4
- 2.Qxg6#
- 1...Rc5
- 2.Qxg6#
- 1...Rc6
- 2.Qxg6#
- 1...Rc7
- 2.Qxg6#
- 1...Be2
- 2.Qh1#
- 1...Sf1
- 2.Sg4#
- 1...Sg2
- 2.Sg4#
- 1...Sc4
- 2.Sg4#
- 1...Sg4
- 2.Sxg4#
- 1...Sd5
- 2.Sg4#
- 1...Sf5
- 2.Sg4#
- 1...g5
- 2.fxg5#
- 1...Rc8+!
- 1...Qxh8
- 1.Rbe8?
- 1...Qxh8
- 2.Rxh8#
- 1...Rxf2
- 2.Qxg6#
- 1...Rc1
- 2.Qxg6#
- 1...Ra2
- 2.Qxg6#
- 1...Rb2
- 2.Qxg6#
- 1...Rd2
- 2.Qxg6#
- 1...Re2
- 2.Qxg6#
- 1...Rc3
- 2.Qxg6#
- 1...Rc4
- 2.Qxg6#
- 1...Rc5
- 2.Qxg6#
- 1...Rc6
- 2.Qxg6#
- 1...Rc7
- 2.Qxg6#
- 1...Be2
- 2.Qh1#
- 1...Sf1
- 2.Sg4#
- 1...Sg2
- 2.Sg4#
- 1...Sc4
- 2.Sg4#
- 1...Sg4
- 2.Sxg4#
- 1...Sd5
- 2.Sg4#
- 1...Sf5
- 2.Sg4#
- 1...g5
- 2.fxg5#
- 1...Rc8+!
- 1...Qxh8
- 1.Rbf8?
- 1...Qxh8
- 2.Rxh8#
- 1...Rxf2
- 2.Qxg6#
- 1...Rc1
- 2.Qxg6#
- 1...Ra2
- 2.Qxg6#
- 1...Rb2
- 2.Qxg6#
- 1...Rd2
- 2.Qxg6#
- 1...Re2
- 2.Qxg6#
- 1...Rc3
- 2.Qxg6#
- 1...Rc4
- 2.Qxg6#
- 1...Rc5
- 2.Qxg6#
- 1...Rc6
- 2.Qxg6#
- 1...Rc7
- 2.Qxg6#
- 1...Be2
- 2.Qh1#
- 1...Sf1
- 2.Sg4#
- 1...Sg2
- 2.Sg4#
- 1...Sc4
- 2.Sg4#
- 1...Sg4
- 2.Sxg4#
- 1...Sd5
- 2.Sg4#
- 1...Sf5
- 2.Sg4#
- 1...g5
- 2.fxg5#
- 1...Rc8+!
- 1...Qxh8
- 1.Rbg8?
- threat
- 2.Bg5#
- 1...Qxh8
- 2.Rxh8#
- 1...Rc5
- 2.Qxg6#
- 1...g5
- 2.Bxg5#
- 2.fxg5#
- 1...Rc8+!
- threat
- 1.Qxc2?
- threat
- 2.Qxg6#
- 1...Sxc2
- 2.Sg4#
- 1...Sf5
- 2.Sg4#
- 1...g5
- 2.Rxh7#
- 2.Qg6#
- 2.Qxh7#
- 2.fxg5#
- 1...Bxc2!
- threat
- 1.Qb5?
- threat
- 2.Qg5#
- 1...Qxh8
- 2.Rxh8#
- 1...Sd5
- 2.Sg4#
- 1...Sf5
- 2.Sg4#
- 1...g5
- 2.Qxg5#
- 2.fxg5#
- 1...Rc5!
- threat
- 1.Be8?
- Keys
- 1.Bc3!
- 1...Qxh8
- 2.Rxh8#
- 1...Rxf2
- 2.Qxg6#
- 1...Rxc3
- 2.Qxg6#
- 1...Rc1
- 2.Qxg6#
- 1...Ra2
- 2.Qxg6#
- 1...Rb2
- 2.Qxg6#
- 1...Rd2
- 2.Qxg6#
- 1...Re2
- 2.Qxg6#
- 1...Be2
- 2.Qh1#
- 1...Sf1
- 2.Sg4#
- 1...Sg2
- 2.Sg4#
- 1...Sc4
- 2.Sg4#
- 1...Sg4
- 2.Sxg4#
- 1...Sd5
- 2.Sg4#
- 1...Sf5
- 2.Sg4#
- 1...g5
- 2.Qb6#
- 1...Qxh8
- 1.Bc3!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 1
- ADDED MATES = 0
- REMOVED MATES = 5
- Sets
- Q(g);N_SPINQ(g),OGATE,P_PINR(J),XR(K)::R(J),XQ(g)
- R(b);OGATE::QAR1(A),XP(e)
- R(b);OGATE,P_PINP(E)::QAR1(A),XP(e)
- R(b);OGATE,XS(B)::QAR1(A),XP(e)
- R(b);OGATE,P_PINR(J)::QAR1(A),XP(e)
- B(a);OGATE::QAR(A)
- S(c);N_GUARD::S(B)
- S(c);N_GUARD::S(B),XS(c)
- P(e);OGATE::P(C),XP(e)
- Tries
- Try
- B(G);
- Vars
- R(b);OGATE,XS(B)::QAR1(A),XP(e)
- R(b);OGATE::QAR1(A),XP(e)
- R(b);OGATE,P_PINP(E)::QAR1(A),XP(e)
- R(b);OGATE,P_PINR(J)::QAR1(A),XP(e)
- B(a);OGATE::QAR(A)
- S(c);N_GUARD::S(B)
- S(c);N_GUARD::S(B),XS(c)
- P(e);OGATE::P(C),XP(e)
- Refutation
- Q(g);N_SPINQ(g),XR(K)
- Try
- R(J);
- Vars
- Q(g);N_SPINQ(g),OGATE,P_PINR(J),XR(K)::R(J),XQ(g)
- R(b);OGATE,XS(B)::QAR1(A),XP(e)
- R(b);OGATE::QAR1(A),XP(e)
- R(b);OGATE,P_PINP(E)::QAR1(A),XP(e)
- B(a);OGATE::QAR(A)
- S(c);N_GUARD::S(B)
- S(c);N_GUARD::S(B),XS(c)
- P(e);OGATE::P(C),XP(e)
- Refutation
- R(b);CHECK,XR(J)
- Try
- R(J);
- Vars
- Q(g);N_SPINQ(g),OGATE,P_PINR(J),XR(K)::R(J),XQ(g)
- R(b);OGATE,XS(B)::QAR1(A),XP(e)
- R(b);OGATE::QAR1(A),XP(e)
- R(b);OGATE,P_PINP(E)::QAR1(A),XP(e)
- B(a);OGATE::QAR(A)
- S(c);N_GUARD::S(B)
- S(c);N_GUARD::S(B),XS(c)
- P(e);OGATE::P(C),XP(e)
- Refutation
- R(b);CHECK
- Try
- R(J);
- Vars
- Q(g);N_SPINQ(g),OGATE,P_PINR(J),XR(K)::R(J),XQ(g)
- R(b);OGATE,XS(B)::QAR1(A),XP(e)
- R(b);OGATE::QAR1(A),XP(e)
- R(b);OGATE,P_PINP(E)::QAR1(A),XP(e)
- B(a);OGATE::QAR(A)
- S(c);N_GUARD::S(B)
- S(c);N_GUARD::S(B),XS(c)
- P(e);OGATE::P(C),XP(e)
- Refutation
- R(b);CHECK
- Try
- R(J);
- Vars
- Q(g);N_SPINQ(g),OGATE,P_PINR(J),XR(K)::R(J),XQ(g)
- R(b);OGATE,XS(B)::QAR1(A),XP(e)
- R(b);OGATE::QAR1(A),XP(e)
- R(b);OGATE,P_PINP(E)::QAR1(A),XP(e)
- B(a);OGATE::QAR(A)
- S(c);N_GUARD::S(B)
- S(c);N_GUARD::S(B),XS(c)
- P(e);OGATE::P(C),XP(e)
- Refutation
- R(b);CHECK
- Try
- R(J);
- Threat
- B(D)
- Vars
- Q(g);N_SPINQ(g),OGATE,P_PINR(J),XR(K)::R(J),XQ(g)
- R(b);OGATE::QAR1(A),XP(e)
- Refutation
- R(b);CHECK
- Try
- Q(A);XR(b)
- Threat
- QAR1(A),XP(e)
- Vars
- S(c);N_GUARD,XQ(A)::S(B)
- S(c);N_GUARD::S(B)
- Refutation
- B(a);XQ(A)
- Try
- Q(A);
- Threat
- QAB1(A)
- Vars
- Q(g);N_SPINQ(g),OGATE,P_PINR(J),XR(K)::R(J),XQ(g)
- S(c);N_GUARD::S(B)
- Refutation
- R(b);
- Try
- Actual
- B(D);
- Vars
- Q(g);N_SPINQ(g),OGATE,P_PINR(J),XR(K)::R(J),XQ(g)
- R(b);OGATE,XS(B)::QAR1(A),XP(e)
- R(b);OGATE,XB(D)::QAR1(A),XP(e)
- R(b);OGATE::QAR1(A),XP(e)
- R(b);OGATE,P_PINP(E)::QAR1(A),XP(e)
- B(a);OGATE::QAR(A)
- S(c);N_GUARD::S(B)
- S(c);N_GUARD::S(B),XS(c)
- P(e);OGATEB::QAR(A)
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).