MESON Chess Problem Database
Problem Display
PID: 174451 (1b2N1n1/N7/3pR1p1/2pk2P1/4R3/3pQ3/3K1n2/8 w - - 0 1)
Cresswell, James E
Comm., Busmen's Chess Review, 1971-1972
#2
7 + 8
SOLUTION
- SOUND
- Sets
- 1...Bxa7
- 2.Rxd6#
- 1...Bc7
- 2.Sxc7#
- 1...Sd1
- 2.Qxd3#
- 1...Sh1
- 2.Qxd3#
- 1...Sh3
- 2.Qxd3#
- 1...Sxe4+
- 2.Qxe4#
- 1...Sg4
- 2.Qxd3#
- 1...Sf6
- 2.Sxf6#
- 1...Sh6
- 2.Sf6#
- 1...Se7
- 2.Sf6#
- 1...c4
- 2.Qd4#
- 1...Bxa7
- Tries
- 1.Kc1?
- 1...Bxa7
- 2.Rxd6#
- 1...Sxe4
- 2.Qxe4#
- 1...Bc7
- 2.Sxc7#
- 1...Sd1
- 2.Qxd3#
- 1...Sh1
- 2.Qxd3#
- 1...Sh3
- 2.Qxd3#
- 1...Sg4
- 2.Qxd3#
- 1...Sf6
- 2.Sxf6#
- 1...Sh6
- 2.Sf6#
- 1...Se7
- 2.Sf6#
- 1...c4
- 2.Qd4#
- 1...d2+!
- 1...Bxa7
- 1.Ke1?
- 1...Bxa7
- 2.Rxd6#
- 1...Sxe4
- 2.Qxe4#
- 1...Bc7
- 2.Sxc7#
- 1...Sd1
- 2.Qxd3#
- 1...Sh1
- 2.Qxd3#
- 1...Sh3
- 2.Qxd3#
- 1...Sg4
- 2.Qxd3#
- 1...Sf6
- 2.Sxf6#
- 1...Sh6
- 2.Sf6#
- 1...Se7
- 2.Sf6#
- 1...c4
- 2.Qd4#
- 1...d2+!
- 1...Bxa7
- 1.Rb4?
- 1...Se4+
- 2.Qxe4#
- 1...Bxa7
- 2.Rxd6#
- 1...Bc7
- 2.Sxc7#
- 1...Sd1
- 2.Qe4#
- 1...Sh1
- 2.Qe4#
- 1...Sh3
- 2.Qe4#
- 1...Sg4
- 2.Qe4#
- 1...Sf6
- 2.Sxf6#
- 1...Sh6
- 2.Sf6#
- 1...Se7
- 2.Sf6#
- 1...c4
- 2.Rb5#
- 1...cxb4!
- 1...Se4+
- 1.Rf4?
- 1...Se4+
- 2.Qxe4#
- 1...Bxa7
- 2.Rxd6#
- 1...Bc7
- 2.Sxc7#
- 1...Sd1
- 2.Qe4#
- 1...Sh1
- 2.Qe4#
- 1...Sh3
- 2.Qe4#
- 1...Sg4
- 2.Qe4#
- 1...Sf6
- 2.Sxf6#
- 1...Sh6
- 2.Sf6#
- 1...Se7
- 2.Sf6#
- 1...c4!
- 1...Se4+
- 1.Rg4?
- 1...Se4+
- 2.Qxe4#
- 1...Bxa7
- 2.Rxd6#
- 1...Sxg4
- 2.Qe4#
- 1...Bc7
- 2.Sxc7#
- 1...Sd1
- 2.Qe4#
- 1...Sh1
- 2.Qe4#
- 1...Sh3
- 2.Qe4#
- 1...Sf6
- 2.Sxf6#
- 1...Sh6
- 2.Sf6#
- 1...Se7
- 2.Sf6#
- 1...c4!
- 1...Se4+
- 1.Rh4?
- 1...Se4+
- 2.Qxe4#
- 1...Bxa7
- 2.Rxd6#
- 1...Sg4
- 2.Qe4#
- 1...Bc7
- 2.Sxc7#
- 1...Sd1
- 2.Qe4#
- 1...Sh1
- 2.Qe4#
- 1...Sh3
- 2.Qe4#
- 1...Sf6
- 2.Sxf6#
- 1...Sh6
- 2.Sf6#
- 1...Se7
- 2.Sf6#
- 1...c4!
- 1...Se4+
- 1.Rxg6?
- 1...Bxa7
- 2.Rxd6#
- 1...Bc7
- 2.Sxc7#
- 1...Sd1
- 2.Qxd3#
- 1...Sh1
- 2.Qxd3#
- 1...Sh3
- 2.Qxd3#
- 1...Sg4
- 2.Qxd3#
- 1...Sf6
- 2.Sxf6#
- 1...Sh6
- 2.Sf6#
- 1...Se7
- 2.Sf6#
- 1...c4
- 2.Qd4#
- 1...Sxe4+!
- 1...Bxa7
- 1.Re7?
- 1...Sxe4+
- 2.Qxe4#
- 1...Sxe7
- 2.Sf6#
- 1...Bc7
- 2.Sxc7#
- 1...Sd1
- 2.Qxd3#
- 1...Sh1
- 2.Qxd3#
- 1...Sh3
- 2.Qxd3#
- 1...Sg4
- 2.Qxd3#
- 1...Sf6
- 2.Sxf6#
- 1...Sh6
- 2.Sf6#
- 1...c4
- 2.Qd4#
- 1...Bxa7!
- 1...Sxe4+
- 1.Qxf2?
- 1...Bc7
- 2.Sxc7#
- 1...Sf6
- 2.Sxf6#
- 1...Sh6
- 2.Sf6#
- 1...Se7
- 2.Sf6#
- 1...c4
- 2.Qd4#
- 1...Bxa7!
- 1...Bc7
- 1.Qf3?
- 1...Sxe4+
- 2.Qxe4#
- 1...Bxa7
- 2.Rxd6#
- 1...Bc7
- 2.Sxc7#
- 1...Sd1
- 2.Qxd3#
- 1...Sh1
- 2.Qxd3#
- 1...Sh3
- 2.Qxd3#
- 1...Sg4
- 2.Qxd3#
- 1...Sf6
- 2.Sxf6#
- 1...Sh6
- 2.Sf6#
- 1...Se7
- 2.Sf6#
- 1...c4!
- 1...Sxe4+
- 1.Kc1?
- Keys
- 1.Ra4!
- 1...Se4+
- 2.Qxe4#
- 1...Bxa7
- 2.Rxd6#
- 1...Bc7
- 2.Sxc7#
- 1...Sd1
- 2.Qe4#
- 1...Sh1
- 2.Qe4#
- 1...Sh3
- 2.Qe4#
- 1...Sg4
- 2.Qe4#
- 1...Sf6
- 2.Sxf6#
- 1...Sh6
- 2.Sf6#
- 1...Se7
- 2.Sf6#
- 1...c4
- 2.Ra5#
- 1...Se4+
- 1.Ra4!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 5
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- B(g);N_GUARD,XS(F)::R1(E),XP(e)
- B(g);N_GUARD::S(G),XB(g)
- S(a);N_GUARD::QAR2(B),XP(b)
- S(a);CHECK,OGATE,XR(C)::QAB1(B),XS(a)
- S(h);N_GUARD::S(G),XS(h)
- S(h);N_GUARD::S(G)
- P(c);N_GUARD::QAR1(B)
- Tries
- Try
- K(A);S_FLIGHT
- Vars
- B(g);N_GUARD,XS(F)::R1(E),XP(e)
- S(a);OGATE,XR(C)::QAB1(B),XS(a)
- B(g);N_GUARD::S(G),XB(g)
- S(a);N_GUARD::QAR2(B),XP(b)
- S(h);N_GUARD::S(G),XS(h)
- S(h);N_GUARD::S(G)
- P(c);N_GUARD::QAR1(B)
- Refutation
- P(b);CHECK
- Try
- K(A);S_FLIGHT
- Vars
- B(g);N_GUARD,XS(F)::R1(E),XP(e)
- S(a);OGATE,XR(C)::QAB1(B),XS(a)
- B(g);N_GUARD::S(G),XB(g)
- S(a);N_GUARD::QAR2(B),XP(b)
- S(h);N_GUARD::S(G),XS(h)
- S(h);N_GUARD::S(G)
- P(c);N_GUARD::QAR1(B)
- Refutation
- P(b);CHECK
- Try
- R(C);
- Vars
- S(a);CHECK,N_GUARD::QAB1(B),XS(a)
- B(g);N_GUARD,XS(F)::R1(E),XP(e)
- B(g);N_GUARD::S(G),XB(g)
- S(a);N_GUARD::QAB1(B)
- S(h);N_GUARD::S(G),XS(h)
- S(h);N_GUARD::S(G)
- P(c);OGATEB,SBLOCK::R(C)
- Refutation
- P(c);XR(C)
- Try
- R(C);
- Vars
- S(a);CHECK,N_GUARD::QAB1(B),XS(a)
- B(g);N_GUARD,XS(F)::R1(E),XP(e)
- B(g);N_GUARD::S(G),XB(g)
- S(a);N_GUARD::QAB1(B)
- S(h);N_GUARD::S(G),XS(h)
- S(h);N_GUARD::S(G)
- Refutation
- P(c);
- Try
- R(C);
- Vars
- S(a);CHECK,N_GUARD::QAB1(B),XS(a)
- B(g);N_GUARD,XS(F)::R1(E),XP(e)
- S(a);N_GUARD,XR(C)::QAB1(B)
- B(g);N_GUARD::S(G),XB(g)
- S(a);N_GUARD::QAB1(B)
- S(h);N_GUARD::S(G),XS(h)
- S(h);N_GUARD::S(G)
- Refutation
- P(c);
- Try
- R(C);
- Vars
- S(a);CHECK,N_GUARD::QAB1(B),XS(a)
- B(g);N_GUARD,XS(F)::R1(E),XP(e)
- S(a);N_GUARD::QAB1(B)
- B(g);N_GUARD::S(G),XB(g)
- S(h);N_GUARD::S(G),XS(h)
- S(h);N_GUARD::S(G)
- Refutation
- P(c);
- Try
- R(E);XP(f)
- Vars
- B(g);N_GUARD,XS(F)::R1(E),XP(e)
- B(g);N_GUARD::S(G),XB(g)
- S(a);N_GUARD::QAR2(B),XP(b)
- S(h);N_GUARD::S(G),XS(h)
- S(h);N_GUARD::S(G)
- P(c);N_GUARD::QAR1(B)
- Refutation
- S(a);CHECK,XR(C)
- Try
- R(E);
- Vars
- S(a);CHECK,OGATE,XR(C)::QAB1(B),XS(a)
- S(h);N_GUARD,XR(E)::S(G)
- B(g);N_GUARD::S(G),XB(g)
- S(a);N_GUARD::QAR2(B),XP(b)
- S(h);N_GUARD::S(G),XS(h)
- S(h);N_GUARD::S(G)
- P(c);N_GUARD::QAR1(B)
- Refutation
- B(g);XS(F)
- Try
- Q(B);XS(a)
- Vars
- B(g);N_GUARD::S(G),XB(g)
- S(h);N_GUARD::S(G),XS(h)
- S(h);N_GUARD::S(G)
- P(c);N_GUARD::QAR1(B)
- Refutation
- B(g);XS(F)
- Try
- Q(B);
- Vars
- S(a);CHECK,OGATE,P_SPINS(a),XR(C)::QAB1(B),XS(a)
- B(g);N_GUARD,XS(F)::R1(E),XP(e)
- B(g);N_GUARD::S(G),XB(g)
- S(a);N_GUARD::QAR2(B),XP(b)
- S(h);N_GUARD::S(G),XS(h)
- S(h);N_GUARD::S(G)
- Refutation
- P(c);
- Try
- Actual
- R(C);
- Vars
- S(a);CHECK,N_GUARD::QAB1(B),XS(a)
- B(g);N_GUARD,XS(F)::R1(E),XP(e)
- B(g);N_GUARD::S(G),XB(g)
- S(a);N_GUARD::QAB1(B)
- S(h);N_GUARD::S(G),XS(h)
- S(h);N_GUARD::S(G)
- P(c);OGATEB,SBLOCK::R(C)
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
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