MESON Chess Problem Database
Problem Display
PID: 59972 (n2K2n1/3B4/3p4/1N1kq2R/2p1p1N1/2PrB3/8/3Q3R w - - 0 1)
McDowell, Michael
The Wangling Wizards, 2005
#2
9 + 8
SOLUTION
- SOUND
- Sets
- 1...Qf5
- 2.Rxf5#
- 1...Qg5+
- 2.Rxg5#
- 1...Qxh5
- 2.Rxh5#
- 1...Rxd1
- 2.Rxd1#
- 1...Rd2
- 2.Qxd2#
- 1...Rd4
- 2.Qxd4#
- 1...Sb6
- 2.Sc7#
- 1...Sc7
- 2.Sxc7#
- 1...Sf6
- 2.Sxf6#
- 1...Sh6
- 2.Sf6#
- 1...Se7
- 2.Sf6#
- 1...Qf5
- Tries
- 1.Bf2?
- 1...Qg5+
- 2.Rxg5#
- 1...Qxh5
- 2.Rxh5#
- 1...Rxd1
- 2.Rxd1#
- 1...Rd4
- 2.Qxd4#
- 1...Sf6
- 2.Sxf6#
- 1...Qf5
- 2.Rxf5#
- 1...Rd2
- 2.Qxd2#
- 1...Sb6
- 2.Sc7#
- 1...Sc7
- 2.Sxc7#
- 1...Sh6
- 2.Sf6#
- 1...Se7
- 2.Sf6#
- 1...e3!
- 1...Qg5+
- 1.Bb6?
- threat
- 2.Se3#
- 1...Qg5+
- 2.Rxg5#
- 1...Qxh5
- 2.Rxh5#
- 1...e3
- 2.Qf3#
- 1...Qf5
- 2.Rxf5#
- 1...Sxb6!
- threat
- 1.Ba7?
- threat
- 2.Se3#
- 1...Qg5+
- 2.Rxg5#
- 1...Qxh5
- 2.Rxh5#
- 1...e3
- 2.Qf3#
- 1...Qf5
- 2.Rxf5#
- 1...Sb6!
- threat
- 1.Re1?
- 1...Qg5+
- 2.Rxg5#
- 1...Rxd1
- 2.Rxd1#
- 1...Rd4
- 2.Qxd4#
- 1...Sf6
- 2.Sxf6#
- 1...Qf5
- 2.Rxf5#
- 1...Rd2
- 2.Qxd2#
- 1...Sb6
- 2.Sc7#
- 1...Sc7
- 2.Sxc7#
- 1...Sh6
- 2.Sf6#
- 1...Se7
- 2.Sf6#
- 1...Qxh5!
- 1...Qg5+
- 1.Rf1?
- 1...Qg5+
- 2.Rxg5#
- 1...Rxd1
- 2.Rxd1#
- 1...Rd4
- 2.Qxd4#
- 1...Sf6
- 2.Sxf6#
- 1...Qf5
- 2.Rfxf5#
- 2.Rhxf5#
- 1...Rd2
- 2.Qxd2#
- 1...Sb6
- 2.Sc7#
- 1...Sc7
- 2.Sxc7#
- 1...Sh6
- 2.Sf6#
- 1...Se7
- 2.Sf6#
- 1...Qxh5!
- 1...Qg5+
- 1.Rg1?
- 1...Qg5+
- 2.Rxg5#
- 1...Rxd1
- 2.Rxd1#
- 1...Rd4
- 2.Qxd4#
- 1...Sf6
- 2.Sxf6#
- 1...Qf5
- 2.Rxf5#
- 1...Rd2
- 2.Qxd2#
- 1...Sb6
- 2.Sc7#
- 1...Sc7
- 2.Sxc7#
- 1...Sh6
- 2.Sf6#
- 1...Se7
- 2.Sf6#
- 1...Qxh5!
- 1...Qg5+
- 1.R1h2?
- 1...Qg5+
- 2.Rxg5#
- 1...Qxh5
- 2.Rxh5#
- 1...Rd4
- 2.Qxd4#
- 1...Sf6
- 2.Sxf6#
- 1...Qf5
- 2.Rxf5#
- 1...Rd2
- 2.Rxd2#
- 2.Qxd2#
- 1...Sb6
- 2.Sc7#
- 1...Sc7
- 2.Sxc7#
- 1...Sh6
- 2.Sf6#
- 1...Se7
- 2.Sf6#
- 1...Rxd1!
- 1...Qg5+
- 1.R1h3?
- 1...Qg5+
- 2.Rxg5#
- 1...Qxh5
- 2.Rxh5#
- 1...Rd4
- 2.Qxd4#
- 1...Sf6
- 2.Sxf6#
- 1...Qf5
- 2.Rxf5#
- 1...Rd2
- 2.Qxd2#
- 1...Sb6
- 2.Sc7#
- 1...Sc7
- 2.Sxc7#
- 1...Sh6
- 2.Sf6#
- 1...Se7
- 2.Sf6#
- 1...Rxd1!
- 1...Qg5+
- 1.R1h4?
- 1...Qg5+
- 2.Rxg5#
- 1...Qxh5
- 2.Rxh5#
- 1...Rd4
- 2.Qxd4#
- 1...Sf6
- 2.Sxf6#
- 1...Qf5
- 2.Rxf5#
- 1...Rd2
- 2.Qxd2#
- 1...Sb6
- 2.Sc7#
- 1...Sc7
- 2.Sxc7#
- 1...Sh6
- 2.Sf6#
- 1...Se7
- 2.Sf6#
- 1...Rxd1!
- 1...Qg5+
- 1.Rf5?
- 1...Rxd1
- 2.Rxd1#
- 1...Rd4
- 2.Qxd4#
- 1...Sf6
- 2.Sxf6#
- 1...Rd2
- 2.Qxd2#
- 1...Sb6
- 2.Sc7#
- 1...Sc7
- 2.Sxc7#
- 1...Sh6
- 2.Sf6#
- 1...Se7
- 2.Sf6#
- 1...Qxf5!
- 1...Rxd1
- 1.Rg5?
- 1...Rxd1
- 2.Rxd1#
- 1...Rd4
- 2.Qxd4#
- 1...Sf6
- 2.Sxf6#
- 1...Qf5
- 2.Rxf5#
- 1...Rd2
- 2.Qxd2#
- 1...Sb6
- 2.Sc7#
- 1...Sc7
- 2.Sxc7#
- 1...Sh6
- 2.Sf6#
- 1...Se7
- 2.Sf6#
- 1...Qxg5+!
- 1...Rxd1
- 1.Qd2?
- 1...Qg5+
- 2.Rxg5#
- 1...Qxh5
- 2.Rxh5#
- 1...Rd4
- 2.Qxd4#
- 1...Sf6
- 2.Sxf6#
- 1...Qf5
- 2.Rxf5#
- 1...Sb6
- 2.Sc7#
- 1...Sc7
- 2.Sxc7#
- 1...Sh6
- 2.Sf6#
- 1...Se7
- 2.Sf6#
- 1...Rxd2!
- 1...Qg5+
- 1.Bf2?
- Keys
- 1.Bd4!
- 1...Qg5+
- 2.Rxg5#
- 1...Qxh5
- 2.Rxh5#
- 1...Rxd1
- 2.Se3#
- 1...Rxc3
- 2.Sxc3#
- 1...Rxd4
- 2.Qxd4#
- 1...e3
- 2.Qf3#
- 1...Sf6
- 2.Sxf6#
- 1...Qf5
- 2.Rxf5#
- 1...Rd2
- 2.Se3#
- 1...Re3
- 2.Sxe3#
- 2.Bxe3#
- 1...Rf3
- 2.Be3#
- 1...Rg3
- 2.Be3#
- 1...Rh3
- 2.Be3#
- 1...Sb6
- 2.Sc7#
- 1...Sc7
- 2.Sxc7#
- 1...Sh6
- 2.Sf6#
- 1...Se7
- 2.Sf6#
- 1...Qg5+
- 1.Bd4!
This is a version of 3125
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 2
- ADDED MATES = 5
- REMOVED MATES = 0
- Sets
- Q(e);OGATEB::R(G),XQ(e)
- Q(e);CHECK,OGATEB::R(G),XQ(e)
- Q(e);N_SPINQ(e),OGATE,XR(G)::R(B),XQ(e)
- R(a);N_SPINR(a),OGATE,XQ(A)::R(B),XR(a)
- R(a);OGATEB::QAR(A),XR(a)
- R(a);OGATE::QAR1(A),XR(a)
- S(g);N_GUARD::S(F)
- S(g);N_GUARD::S(F),XS(g)
- S(h);N_GUARD::S(E),XS(h)
- S(h);N_GUARD::S(E)
- Tries
- Try
- B(D);
- Vars
- Q(e);CHECK,OGATEB::R(G),XQ(e)
- Q(e);N_SPINQ(e),OGATE,XR(G)::R(B),XQ(e)
- R(a);N_SPINR(a),OGATE,XQ(A)::R(B),XR(a)
- R(a);OGATE::QAR1(A),XR(a)
- S(h);N_GUARD::S(E),XS(h)
- Q(e);OGATEB::R(G),XQ(e)
- R(a);OGATEB::QAR(A),XR(a)
- S(g);N_GUARD::S(F)
- S(g);N_GUARD::S(F),XS(g)
- S(h);N_GUARD::S(E)
- Refutation
- P(c);
- Try
- B(D);
- Threat
- S(E)
- Vars
- Q(e);CHECK,OGATEB::R(G),XQ(e)
- Q(e);N_SPINQ(e),OGATE,XR(G)::R(B),XQ(e)
- P(c);OGATEB::QAB(A)
- Q(e);OGATEB::R(G),XQ(e)
- Refutation
- S(g);XB(D)
- Try
- B(D);
- Threat
- S(E)
- Vars
- Q(e);CHECK,OGATEB::R(G),XQ(e)
- Q(e);N_SPINQ(e),OGATE,XR(G)::R(B),XQ(e)
- P(c);OGATEB::QAB(A)
- Q(e);OGATEB::R(G),XQ(e)
- Refutation
- S(g);
- Try
- R(B);
- Vars
- Q(e);CHECK,OGATEB::R(G),XQ(e)
- R(a);N_SPINR(a),OGATE,XQ(A)::R(B),XR(a)
- R(a);OGATE::QAR1(A),XR(a)
- S(h);N_GUARD::S(E),XS(h)
- Q(e);OGATEB::R(G),XQ(e)
- R(a);OGATEB::QAR(A),XR(a)
- S(g);N_GUARD::S(F)
- S(g);N_GUARD::S(F),XS(g)
- S(h);N_GUARD::S(E)
- Refutation
- Q(e);N_SPINQ(e),XR(G)
- Try
- R(B);
- Vars
- Q(e);CHECK,OGATEB::R(G),XQ(e)
- R(a);N_SPINR(a),OGATE,XQ(A)::R(B),XR(a)
- R(a);OGATE::QAR1(A),XR(a)
- S(h);N_GUARD::S(E),XS(h)
- R(a);OGATEB::QAR(A),XR(a)
- S(g);N_GUARD::S(F)
- S(g);N_GUARD::S(F),XS(g)
- S(h);N_GUARD::S(E)
- Refutation
- Q(e);N_SPINQ(e),XR(G)
- Try
- R(B);
- Vars
- Q(e);CHECK,OGATEB::R(G),XQ(e)
- R(a);N_SPINR(a),OGATE,XQ(A)::R(B),XR(a)
- R(a);OGATE::QAR1(A),XR(a)
- S(h);N_GUARD::S(E),XS(h)
- Q(e);OGATEB::R(G),XQ(e)
- R(a);OGATEB::QAR(A),XR(a)
- S(g);N_GUARD::S(F)
- S(g);N_GUARD::S(F),XS(g)
- S(h);N_GUARD::S(E)
- Refutation
- Q(e);N_SPINQ(e),XR(G)
- Try
- R(B);
- Vars
- Q(e);CHECK,OGATEB::R(G),XQ(e)
- Q(e);N_SPINQ(e),OGATE,XR(G)::R(B),XQ(e)
- R(a);OGATE::QAR1(A),XR(a)
- S(h);N_GUARD::S(E),XS(h)
- Q(e);OGATEB::R(G),XQ(e)
- S(g);N_GUARD::S(F)
- S(g);N_GUARD::S(F),XS(g)
- S(h);N_GUARD::S(E)
- Refutation
- R(a);N_SPINR(a),XQ(A)
- Try
- R(B);
- Vars
- Q(e);CHECK,OGATEB::R(G),XQ(e)
- Q(e);N_SPINQ(e),OGATE,XR(G)::R(B),XQ(e)
- R(a);OGATE::QAR1(A),XR(a)
- S(h);N_GUARD::S(E),XS(h)
- Q(e);OGATEB::R(G),XQ(e)
- R(a);OGATEB::QAR(A),XR(a)
- S(g);N_GUARD::S(F)
- S(g);N_GUARD::S(F),XS(g)
- S(h);N_GUARD::S(E)
- Refutation
- R(a);N_SPINR(a),XQ(A)
- Try
- R(B);
- Vars
- Q(e);CHECK,OGATEB::R(G),XQ(e)
- Q(e);N_SPINQ(e),OGATE,XR(G)::R(B),XQ(e)
- R(a);OGATE::QAR1(A),XR(a)
- S(h);N_GUARD::S(E),XS(h)
- Q(e);OGATEB::R(G),XQ(e)
- R(a);OGATEB::QAR(A),XR(a)
- S(g);N_GUARD::S(F)
- S(g);N_GUARD::S(F),XS(g)
- S(h);N_GUARD::S(E)
- Refutation
- R(a);N_SPINR(a),XQ(A)
- Try
- R(G);
- Vars
- R(a);N_SPINR(a),OGATE,XQ(A)::R(B),XR(a)
- R(a);OGATE::QAR1(A),XR(a)
- S(h);N_GUARD::S(E),XS(h)
- R(a);OGATEB::QAR(A),XR(a)
- S(g);N_GUARD::S(F)
- S(g);N_GUARD::S(F),XS(g)
- S(h);N_GUARD::S(E)
- Refutation
- Q(e);N_SPINQ(e),XR(G)
- Try
- R(G);
- Vars
- R(a);N_SPINR(a),OGATE,XQ(A)::R(B),XR(a)
- R(a);OGATE::QAR1(A),XR(a)
- S(h);N_GUARD::S(E),XS(h)
- Q(e);OGATEB::R(G),XQ(e)
- R(a);OGATEB::QAR(A),XR(a)
- S(g);N_GUARD::S(F)
- S(g);N_GUARD::S(F),XS(g)
- S(h);N_GUARD::S(E)
- Refutation
- Q(e);CHECK,N_SPINQ(e),XR(G)
- Try
- Q(A);
- Vars
- Q(e);CHECK,OGATEB::R(G),XQ(e)
- Q(e);N_SPINQ(e),OGATE,XR(G)::R(B),XQ(e)
- R(a);OGATE::QAR1(A),XR(a)
- S(h);N_GUARD::S(E),XS(h)
- Q(e);OGATEB::R(G),XQ(e)
- S(g);N_GUARD::S(F)
- S(g);N_GUARD::S(F),XS(g)
- S(h);N_GUARD::S(E)
- Refutation
- R(a);N_SPINR(a),XQ(A)
- Try
- Actual
- B(D);N_PINR(a)
- Vars
- Q(e);CHECK,OGATEB::R(G),XQ(e)
- Q(e);N_SPINQ(e),OGATE,XR(G)::R(B),XQ(e)
- R(a);N_GUARD,XQ(A)::S(E)
- R(a);XP(C)::S(F),XR(a)
- R(a);OGATE,P_SPINR(a),XB(D)::QAR1(A),XR(a)
- P(c);OGATEB::QAB(A)
- S(h);N_GUARD::S(E),XS(h)
- Q(e);OGATEB::R(G),XQ(e)
- R(a);N_GUARD::S(E)
- R(a);OGATEB::QAR(A)+B(D)
- S(g);N_GUARD::S(F)
- S(g);N_GUARD::S(F),XS(g)
- S(h);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).