MESON Chess Problem Database
Problem Display
PID: 140529 (4N1n1/1p1p4/pK1Pp1p1/n3k1pb/1p2P1P1/1Pq1N1P1/1B3Q2/1B1R4 w - - 0 1)
McDowell, Michael
The Wangling Wizards, 2005
#2
12 + 12
SOLUTION
- SOUND
- Sets
- 1...Qxb2
- 2.Qxb2#
- 1...Qd4+
- 2.Bxd4#
- 1...Bxg4
- 2.Sxg4#
- 1...Sxb3
- 2.Sc4#
- 1...Sc4+
- 2.Sxc4#
- 1...Sc6
- 2.Sc4#
- 1...Sf6
- 2.Qxf6#
- 1...Sh6
- 2.Qf6#
- 1...Se7
- 2.Qf6#
- 1...Qxb2
- Tries
- 1.Bc2?
- 1...Qd4+
- 2.Bxd4#
- 1...Sc4+
- 2.Sxc4#
- 1...Bxg4
- 2.Sxg4#
- 1...Sxb3
- 2.Sc4#
- 1...Sc6
- 2.Sc4#
- 1...Sf6
- 2.Qxf6#
- 1...Sh6
- 2.Qf6#
- 1...Se7
- 2.Qf6#
- 1...Qxb2!
- 1...Qd4+
- 1.Bd3?
- 1...Sc4+
- 2.Sxc4#
- 1...Kd4
- 2.Sc4#
- 1...Qxb2
- 2.Qxb2#
- 1...Bxg4
- 2.Sxg4#
- 1...Sxb3
- 2.Sc4#
- 1...Sc6
- 2.Sc4#
- 1...Sf6
- 2.Qxf6#
- 1...Sh6
- 2.Qf6#
- 1...Se7
- 2.Qf6#
- 1...Qd4+!
- 1...Sc4+
- 1.Ba1?
- 1...Qd4+
- 2.Bxd4#
- 1...Sc4+
- 2.Sxc4#
- 1...Bxg4
- 2.Sxg4#
- 1...Sxb3
- 2.Sc4#
- 1...Qb2
- 2.Bxb2#
- 2.Qxb2#
- 1...Sc6
- 2.Sc4#
- 1...Sf6
- 2.Qxf6#
- 1...Sh6
- 2.Qf6#
- 1...Se7
- 2.Qf6#
- 1...Qxa1!
- 1...Qd4+
- 1.Re1?
- 1...Sc4+
- 2.Sxc4#
- 1...Kd4
- 2.Sc4#
- 1...Qxb2
- 2.Qxb2#
- 1...Bxg4
- 2.Sxg4#
- 1...Sxb3
- 2.Sc4#
- 1...Sc6
- 2.Sc4#
- 1...Sf6
- 2.Qxf6#
- 1...Sh6
- 2.Qf6#
- 1...Se7
- 2.Qf6#
- 1...Qd4+!
- 1...Sc4+
- 1.Rf1?
- 1...Sc4+
- 2.Sxc4#
- 1...Kd4
- 2.Sc4#
- 1...Qxb2
- 2.Qxb2#
- 1...Bxg4
- 2.Sxg4#
- 1...Sxb3
- 2.Sc4#
- 1...Sc6
- 2.Sc4#
- 1...Sf6
- 2.Qxf6#
- 1...Sh6
- 2.Qf6#
- 1...Se7
- 2.Qf6#
- 1...Qd4+!
- 1...Sc4+
- 1.Rg1?
- 1...Sc4+
- 2.Sxc4#
- 1...Kd4
- 2.Sc4#
- 1...Qxb2
- 2.Qxb2#
- 1...Bxg4
- 2.Sxg4#
- 1...Sxb3
- 2.Sc4#
- 1...Sc6
- 2.Sc4#
- 1...Sf6
- 2.Qxf6#
- 1...Sh6
- 2.Qf6#
- 1...Se7
- 2.Qf6#
- 1...Qd4+!
- 1...Sc4+
- 1.Rh1?
- 1...Sc4+
- 2.Sxc4#
- 1...Kd4
- 2.Sc4#
- 1...Qxb2
- 2.Qxb2#
- 1...Bxg4
- 2.Sxg4#
- 1...Sxb3
- 2.Sc4#
- 1...Sc6
- 2.Sc4#
- 1...Sf6
- 2.Qxf6#
- 1...Sh6
- 2.Qf6#
- 1...Se7
- 2.Qf6#
- 1...Qd4+!
- 1...Sc4+
- 1.Rd2?
- 1...Qd4+
- 2.Bxd4#
- 1...Sc4+
- 2.Sxc4#
- 1...Bxg4
- 2.Sxg4#
- 1...Sxb3
- 2.Sc4#
- 1...Sc6
- 2.Sc4#
- 1...Sf6
- 2.Qxf6#
- 1...Sh6
- 2.Qf6#
- 1...Se7
- 2.Qf6#
- 1...Qxb2!
- 1...Qd4+
- 1.Qf1?
- 1...Qd4+
- 2.Bxd4#
- 1...Sc4+
- 2.Sxc4#
- 1...Bxg4
- 2.Sxg4#
- 1...Sxb3
- 2.Sc4#
- 1...Sf6
- 2.Qxf6#
- 1...Sc6
- 2.Sc4#
- 1...Sh6
- 2.Qf6#
- 1...Se7
- 2.Qf6#
- 1...Qxb2!
- 1...Qd4+
- 1.Qf3?
- 1...Qd4+
- 2.Bxd4#
- 1...Sc4+
- 2.Sxc4#
- 1...Bxg4
- 2.Sxg4#
- 1...Sxb3
- 2.Sc4#
- 1...Sf6
- 2.Qxf6#
- 1...Sc6
- 2.Sc4#
- 1...Sh6
- 2.Qf6#
- 1...Se7
- 2.Qf6#
- 1...Qxb2!
- 1...Qd4+
- 1.Qf7?
- 1...Qd4+
- 2.Bxd4#
- 1...Sc4+
- 2.Sxc4#
- 1...Bxg4
- 2.Sxg4#
- 1...Sxb3
- 2.Sc4#
- 1...Sf6
- 2.Qxf6#
- 1...Sc6
- 2.Sc4#
- 1...Sh6
- 2.Qf6#
- 2.Qg7#
- 1...Se7
- 2.Qf6#
- 2.Qg7#
- 1...Qxb2!
- 1...Qd4+
- 1.Qf8?
- 1...Qd4+
- 2.Bxd4#
- 1...Sc4+
- 2.Sxc4#
- 1...Bxg4
- 2.Sxg4#
- 1...Sxb3
- 2.Sc4#
- 1...Sf6
- 2.Qxf6#
- 1...Sc6
- 2.Sc4#
- 1...Sh6
- 2.Qg7#
- 2.Qf6#
- 2.Qh8#
- 1...Se7
- 2.Qg7#
- 2.Qf6#
- 2.Qh8#
- 1...Qxb2!
- 1...Qd4+
- 1.gxh5?
- threat
- 2.Sg4#
- 1...Qd4+
- 2.Bxd4#
- 1...Sc4+
- 2.Sxc4#
- 1...Sf6
- 2.Qxf6#
- 1...Sh6
- 2.Qf6#
- 1...g4
- 2.Sxg4#
- 2.Qf4#
- 1...gxh5!
- threat
- 1.Bc2?
- Keys
- 1.Rc1!
- 1...Qd4+
- 2.Rc5#
- 1...Sc4+
- 2.Sxc4#
- 1...Kd4
- 2.Sc4#
- 1...Qxb2
- 2.Qxb2#
- 1...Bxg4
- 2.Sxg4#
- 1...Sxb3
- 2.Sc4#
- 1...Sc6
- 2.Sc4#
- 1...Sf6
- 2.Qxf6#
- 1...Sh6
- 2.Qf6#
- 1...Se7
- 2.Qf6#
- 1...Qd4+
- 1.Rc1!
This is a version of 10772
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 1
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- Q(a);N_SPINQ(a),OGATE,XB(C)::QAB(D),XQ(a)
- Q(a);CHECK,OGATE::B(C),XQ(a)
- B(f);XP(I)::S(F),XB(f)
- S(c);N_GUARD,XP(E)::S(F)
- S(c);CHECK,N_GUARD::S(F),XS(c)
- S(c);N_GUARD::S(F)
- S(l);N_GUARD::QAB1(D),XS(l)
- S(l);N_GUARD::QAB1(D)
- Tries
- Try
- B(A);
- Vars
- Q(a);CHECK,OGATE::B(C),XQ(a)
- S(c);CHECK,N_GUARD::S(F),XS(c)
- B(f);XP(I)::S(F),XB(f)
- S(c);N_GUARD,XP(E)::S(F)
- S(c);N_GUARD::S(F)
- S(l);N_GUARD::QAB1(D),XS(l)
- S(l);N_GUARD::QAB1(D)
- Refutation
- Q(a);N_SPINQ(a),XB(C)
- Try
- B(A);
- Vars
- S(c);CHECK,N_GUARD::S(F),XS(c)
- K(d);S_FLIGHT::QAB(D)+S(F)
- Q(a);N_SPINQ(a),OGATE,XB(C)::QAB(D),XQ(a)
- B(f);XP(I)::S(F),XB(f)
- S(c);N_GUARD,XP(E)::S(F)
- S(c);N_GUARD::S(F)
- S(l);N_GUARD::QAB1(D),XS(l)
- S(l);N_GUARD::QAB1(D)
- Refutation
- Q(a);CHECK
- Try
- B(C);
- Vars
- Q(a);CHECK,OGATE::B(C),XQ(a)
- S(c);CHECK,N_GUARD::S(F),XS(c)
- B(f);XP(I)::S(F),XB(f)
- S(c);N_GUARD,XP(E)::S(F)
- S(c);N_GUARD::S(F)
- S(l);N_GUARD::QAB1(D),XS(l)
- S(l);N_GUARD::QAB1(D)
- Refutation
- Q(a);N_SPINQ(a),XB(C)
- Try
- R(B);
- Vars
- S(c);CHECK,N_GUARD::S(F),XS(c)
- K(d);S_FLIGHT::QAB(D)+S(F)
- Q(a);N_SPINQ(a),OGATE,XB(C)::QAB(D),XQ(a)
- B(f);XP(I)::S(F),XB(f)
- S(c);N_GUARD,XP(E)::S(F)
- S(c);N_GUARD::S(F)
- S(l);N_GUARD::QAB1(D),XS(l)
- S(l);N_GUARD::QAB1(D)
- Refutation
- Q(a);CHECK
- Try
- R(B);
- Vars
- S(c);CHECK,N_GUARD::S(F),XS(c)
- K(d);S_FLIGHT::QAB(D)+S(F)
- Q(a);N_SPINQ(a),OGATE,XB(C)::QAB(D),XQ(a)
- B(f);XP(I)::S(F),XB(f)
- S(c);N_GUARD,XP(E)::S(F)
- S(c);N_GUARD::S(F)
- S(l);N_GUARD::QAB1(D),XS(l)
- S(l);N_GUARD::QAB1(D)
- Refutation
- Q(a);CHECK
- Try
- R(B);
- Vars
- S(c);CHECK,N_GUARD::S(F),XS(c)
- K(d);S_FLIGHT::QAB(D)+S(F)
- Q(a);N_SPINQ(a),OGATE,XB(C)::QAB(D),XQ(a)
- B(f);XP(I)::S(F),XB(f)
- S(c);N_GUARD,XP(E)::S(F)
- S(c);N_GUARD::S(F)
- S(l);N_GUARD::QAB1(D),XS(l)
- S(l);N_GUARD::QAB1(D)
- Refutation
- Q(a);CHECK
- Try
- R(B);
- Vars
- S(c);CHECK,N_GUARD::S(F),XS(c)
- K(d);S_FLIGHT::QAB(D)+S(F)
- Q(a);N_SPINQ(a),OGATE,XB(C)::QAB(D),XQ(a)
- B(f);XP(I)::S(F),XB(f)
- S(c);N_GUARD,XP(E)::S(F)
- S(c);N_GUARD::S(F)
- S(l);N_GUARD::QAB1(D),XS(l)
- S(l);N_GUARD::QAB1(D)
- Refutation
- Q(a);CHECK
- Try
- R(B);
- Vars
- Q(a);CHECK,OGATE::B(C),XQ(a)
- S(c);CHECK,N_GUARD::S(F),XS(c)
- B(f);XP(I)::S(F),XB(f)
- S(c);N_GUARD,XP(E)::S(F)
- S(c);N_GUARD::S(F)
- S(l);N_GUARD::QAB1(D),XS(l)
- S(l);N_GUARD::QAB1(D)
- Refutation
- Q(a);N_SPINQ(a),XB(C)
- Try
- Q(D);
- Vars
- Q(a);CHECK,OGATE::B(C),XQ(a)
- S(c);CHECK,N_GUARD::S(F),XS(c)
- B(f);XP(I)::S(F),XB(f)
- S(c);N_GUARD,XP(E)::S(F)
- S(l);N_GUARD::QAB1(D),XS(l)
- S(c);N_GUARD::S(F)
- S(l);N_GUARD::QAB1(D)
- Refutation
- Q(a);N_SPINQ(a),XB(C)
- Try
- Q(D);
- Vars
- Q(a);CHECK,OGATE::B(C),XQ(a)
- S(c);CHECK,N_GUARD::S(F),XS(c)
- B(f);XP(I)::S(F),XB(f)
- S(c);N_GUARD,XP(E)::S(F)
- S(l);N_GUARD::QAB1(D),XS(l)
- S(c);N_GUARD::S(F)
- S(l);N_GUARD::QAB1(D)
- Refutation
- Q(a);N_SPINQ(a),XB(C)
- Try
- Q(D);
- Vars
- Q(a);CHECK,OGATE::B(C),XQ(a)
- S(c);CHECK,N_GUARD::S(F),XS(c)
- B(f);XP(I)::S(F),XB(f)
- S(c);N_GUARD,XP(E)::S(F)
- S(l);N_GUARD::QAB1(D),XS(l)
- S(c);N_GUARD::S(F)
- Refutation
- Q(a);N_SPINQ(a),XB(C)
- Try
- Q(D);
- Vars
- Q(a);CHECK,OGATE::B(C),XQ(a)
- S(c);CHECK,N_GUARD::S(F),XS(c)
- B(f);XP(I)::S(F),XB(f)
- S(c);N_GUARD,XP(E)::S(F)
- S(l);N_GUARD::QAB1(D),XS(l)
- S(c);N_GUARD::S(F)
- Refutation
- Q(a);N_SPINQ(a),XB(C)
- Try
- P(I);XB(f)
- Threat
- S(F)
- Vars
- Q(a);CHECK,OGATE::B(C),XQ(a)
- S(c);CHECK,N_GUARD::S(F),XS(c)
- S(l);N_GUARD::QAB1(D),XS(l)
- S(l);N_GUARD::QAB1(D)
- Refutation
- P(i);XP(I)
- Try
- Actual
- R(B);
- Vars
- Q(a);CHECK,OGATE::R(B)
- S(c);CHECK,N_GUARD::S(F),XS(c)
- K(d);S_FLIGHT::QAB(D)+S(F)
- Q(a);N_SPINQ(a),OGATE,XB(C)::QAB(D),XQ(a)
- B(f);XP(I)::S(F),XB(f)
- S(c);N_GUARD,XP(E)::S(F)
- S(c);N_GUARD::S(F)
- S(l);N_GUARD::QAB1(D),XS(l)
- S(l);N_GUARD::QAB1(D)
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).