MESON Chess Problem Database
Problem Display
PID: 6806 (K1N5/Rp1n4/q7/1pQ1p3/kB2R3/1p6/n3N3/8 w - - 0 1)
Warton, Joseph John
Warton, Thomas Joseph
Social Chess Quarterly (The), 1933
#2
7 + 8
SOLUTION
- SOUND
- Sets
- 1...Qa5
- 2.Rxa5#
- 1...Qxa7+
- 2.Qxa7#
- 1...Sc1
- 2.Sc3#
- 1...Sc3
- 2.Sxc3#
- 1...Sxb4
- 2.Qxb4#
- 1...Sxc5
- 2.Sb6#
- 1...Sb6+
- 2.Sxb6#
- 1...Sf6
- 2.Sb6#
- 1...Sb8
- 2.Sb6#
- 1...Sf8
- 2.Sb6#
- 1...b2
- 2.Qc2#
- 1...b6
- 2.Rxa6#
- 1...Qa5
- Tries
- 1.Be1+?
- 1...Sb4
- 2.Qxb4#
- 1...b4!
- 1...Sb4
- 1.Bd2+?
- 1...Sb4
- 2.Qxb4#
- 1...b4!
- 1...Sb4
- 1.Bc3+?
- 1...Sb4
- 2.Qxb4#
- 1...b4!
- 1...Sb4
- 1.Ba5+?
- 1...Kxa5
- 2.Qa3#
- 1...Sb4
- 2.Qxb4#
- 1...b4!
- 1...Kxa5
- 1.Rg4?
- 1...Qxa7+
- 2.Qxa7#
- 1...Sb6+
- 2.Sxb6#
- 1...Sxb4
- 2.Qxb4#
- 1...Sxc5
- 2.Sb6#
- 1...b2
- 2.Qc2#
- 1...Qa5
- 2.Rxa5#
- 1...Sc1
- 2.Sc3#
- 1...Sc3
- 2.Sxc3#
- 1...Sf6
- 2.Sb6#
- 1...Sb8
- 2.Sb6#
- 1...Sf8
- 2.Sb6#
- 1...b6
- 2.Rxa6#
- 1...e4!
- 1...Qxa7+
- 1.Rh4?
- 1...Qxa7+
- 2.Qxa7#
- 1...Sb6+
- 2.Sxb6#
- 1...Sxb4
- 2.Qxb4#
- 1...Sxc5
- 2.Sb6#
- 1...b2
- 2.Qc2#
- 1...Qa5
- 2.Rxa5#
- 1...Sc1
- 2.Sc3#
- 1...Sc3
- 2.Sxc3#
- 1...Sf6
- 2.Sb6#
- 1...Sb8
- 2.Sb6#
- 1...Sf8
- 2.Sb6#
- 1...b6
- 2.Rxa6#
- 1...e4!
- 1...Qxa7+
- 1.Qe3?
- 1...Qxa7+
- 2.Qxa7#
- 1...Sb6+
- 2.Sxb6#
- 1...Qa5
- 2.Rxa5#
- 1...Sc1
- 2.Sc3#
- 1...Sc3
- 2.Sxc3#
- 1...Sc5
- 2.Sb6#
- 1...Sf6
- 2.Sb6#
- 1...Sb8
- 2.Sb6#
- 1...Sf8
- 2.Sb6#
- 1...b2
- 2.Qa3#
- 1...b6
- 2.Rxa6#
- 1...Sxb4!
- 1...Qxa7+
- 1.Qd4?
- 1...Qxa7+
- 2.Qxa7#
- 1...Sb6+
- 2.Sxb6#
- 1...Sxb4
- 2.Qa1#
- 2.Qxb4#
- 1...b2
- 2.Qd1#
- 1...Qa5
- 2.Rxa5#
- 1...Sc1
- 2.Sc3#
- 1...Sc3
- 2.Sxc3#
- 1...Sc5
- 2.Sb6#
- 1...Sf6
- 2.Sb6#
- 1...Sb8
- 2.Sb6#
- 1...Sf8
- 2.Sb6#
- 1...b6
- 2.Rxa6#
- 1...exd4!
- 1...Qxa7+
- 1.Qd6?
- 1...Sb6+
- 2.Sxb6#
- 1...Sxb4
- 2.Qxb4#
- 1...b2
- 2.Qd1#
- 1...Qa5
- 2.Rxa5#
- 1...Sc1
- 2.Sc3#
- 1...Sc3
- 2.Sxc3#
- 1...Sc5
- 2.Sb6#
- 1...Sf6
- 2.Sb6#
- 1...Sb8
- 2.Sb6#
- 1...Sf8
- 2.Sb6#
- 1...b6
- 2.Rxa6#
- 1...Qxa7+!
- 1...Sb6+
- 1.Qc1?
- threat
- 2.Qa3#
- 1...Sb6+
- 2.Sxb6#
- 1...Sxc1
- 2.Sc3#
- 1...Sxb4
- 2.Qa1#
- 1...b2
- 2.Qd1#
- 2.Qc2#
- 1...Qxa7+!
- threat
- 1.Be1+?
- Keys
- 1.Qg1!
- 1...Qxa7+
- 2.Qxa7#
- 1...Sb6+
- 2.Sxb6#
- 1...Sxb4
- 2.Qa1#
- 1...b2
- 2.Qd1#
- 1...Qa5
- 2.Rxa5#
- 1...Sc1
- 2.Sc3#
- 1...Sc3
- 2.Sxc3#
- 1...Sc5
- 2.Sb6#
- 1...Sf6
- 2.Sb6#
- 1...Sb8
- 2.Sb6#
- 1...Sf8
- 2.Sb6#
- 1...b6
- 2.Rxa6#
- 1...Qxa7+
- 1.Qg1!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 2
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- Q(f);::R1(E),XQ(f)
- Q(f);CHECK,N_SPINQ(f),OGATE,XR(E)::QAR(D),XQ(f)
- S(a);N_GUARD::S(A)
- S(a);N_GUARD::S(A),XS(a)
- S(a);OGATE,P_SPINS(a),XB(B)::QAR1(D),XS(a)
- S(h);N_GUARD,XQ(D)::S(G)
- S(h);CHECK,N_GUARD::S(G),XS(h)
- S(h);N_GUARD::S(G)
- P(b);OGATEB::QAB(D)
- P(g);N_GUARD::R(E),XQ(f)
- Tries
- Try
- B(B);CHECK
- Vars
- S(a);N_GUARD,P_SPINS(a)::QAR1(D),XS(a)
- Refutation
- P(d);P_SPINP(d)
- Try
- B(B);CHECK
- Vars
- S(a);N_GUARD,P_SPINS(a)::QAR1(D),XS(a)
- Refutation
- P(d);P_SPINP(d)
- Try
- B(B);CHECK
- Vars
- S(a);N_GUARD,P_SPINS(a)::QAR1(D),XS(a)
- Refutation
- P(d);P_SPINP(d)
- Try
- B(B);CHECK,N_PINQ(f)
- Vars
- K(c);P-FLIGHT,P_SPINP(d),P_SPINQ(f),XB(B)::QAR2(D)
- S(a);N_GUARD,P_SPINS(a)::QAR1(D),XS(a)
- Refutation
- P(d);P_SPINP(d)
- Try
- R(C);
- Vars
- Q(f);CHECK,N_SPINQ(f),OGATE,XR(E)::QAR(D),XQ(f)
- S(h);CHECK,N_GUARD::S(G),XS(h)
- S(a);OGATE,P_SPINS(a),XB(B)::QAR1(D),XS(a)
- S(h);N_GUARD,XQ(D)::S(G)
- P(b);OGATEB::QAB(D)
- Q(f);::R1(E),XQ(f)
- S(a);N_GUARD::S(A)
- S(a);N_GUARD::S(A),XS(a)
- S(h);N_GUARD::S(G)
- P(g);N_GUARD::R(E),XQ(f)
- Refutation
- P(e);
- Try
- R(C);
- Vars
- Q(f);CHECK,N_SPINQ(f),OGATE,XR(E)::QAR(D),XQ(f)
- S(h);CHECK,N_GUARD::S(G),XS(h)
- S(a);OGATE,P_SPINS(a),XB(B)::QAR1(D),XS(a)
- S(h);N_GUARD,XQ(D)::S(G)
- P(b);OGATEB::QAB(D)
- Q(f);::R1(E),XQ(f)
- S(a);N_GUARD::S(A)
- S(a);N_GUARD::S(A),XS(a)
- S(h);N_GUARD::S(G)
- P(g);N_GUARD::R(E),XQ(f)
- Refutation
- P(e);
- Try
- Q(D);
- Vars
- Q(f);CHECK,N_SPINQ(f),OGATE,XR(E)::QAR(D),XQ(f)
- S(h);CHECK,N_GUARD::S(G),XS(h)
- Q(f);::R1(E),XQ(f)
- S(a);N_GUARD::S(A)
- S(a);N_GUARD::S(A),XS(a)
- S(h);N_GUARD::S(G)
- P(b);OGATE::QAR1(D)
- P(g);N_GUARD::R(E),XQ(f)
- Refutation
- S(a);P_SPINS(a),XB(B)
- Try
- Q(D);
- Vars
- Q(f);CHECK,N_SPINQ(f),OGATE,XR(E)::QAR(D),XQ(f)
- S(h);CHECK,N_GUARD::S(G),XS(h)
- P(b);OGATEB::QAB(D)
- Q(f);::R1(E),XQ(f)
- S(a);N_GUARD::S(A)
- S(a);N_GUARD::S(A),XS(a)
- S(h);N_GUARD::S(G)
- P(g);N_GUARD::R(E),XQ(f)
- Refutation
- P(e);XQ(D)
- Try
- Q(D);
- Vars
- S(h);CHECK,N_GUARD::S(G),XS(h)
- S(a);OGATE,P_SPINS(a),XB(B)::QAR1(D),XS(a)
- P(b);OGATEB::QAB(D)
- Q(f);::R1(E),XQ(f)
- S(a);N_GUARD::S(A)
- S(a);N_GUARD::S(A),XS(a)
- S(h);N_GUARD::S(G)
- P(g);N_GUARD::R(E),XQ(f)
- Refutation
- Q(f);CHECK,N_SPINQ(f),XR(E)
- Try
- Q(D);
- Threat
- QAR1(D)
- Vars
- S(h);CHECK,N_GUARD::S(G),XS(h)
- S(a);N_GUARD,XQ(D)::S(A)
- S(a);OGATEB,P_SPINS(a),XB(B)::QAR(D)
- Refutation
- Q(f);CHECK,N_SPINQ(f),XR(E)
- Try
- Actual
- Q(D);
- Vars
- Q(f);CHECK,N_SPINQ(f),OGATE,XR(E)::QAR(D),XQ(f)
- S(h);CHECK,N_GUARD::S(G),XS(h)
- S(a);OGATEB,P_SPINS(a),XB(B)::QAR(D)
- P(b);OGATEB::QAB(D)
- Q(f);::R1(E),XQ(f)
- S(a);N_GUARD::S(A)
- S(a);N_GUARD::S(A),XS(a)
- S(h);N_GUARD::S(G)
- P(g);N_GUARD::R(E),XQ(f)
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).