MESON Chess Problem Database
Problem Display
PID: 10559 (6N1/3pP1K1/p2pbR2/Rn4Q1/P3k1p1/1Nb3P1/4PB2/8 w - - 0 1)
Morse, Christopher Jeremy
The Problemist, 1965
#2
11 + 8
| 3174 | The Two-move Chess Problem Tradition and Development | 1966 |
SOLUTION
- SOUND
- Sets
- 1...Ba1
- 2.Sd2#
- 1...Be1
- 2.Rf4#
- 1...Bb2
- 2.Sd2#
- 1...Bd2
- 2.Sxd2#
- 1...Bb4
- 2.Rf4#
- 1...Bd4
- 2.Sd2#
- 1...Bxa5
- 2.Rf4#
- 1...Bxf6+
- 2.Sxf6#
- 1...Bxb3
- 2.Qf5#
- 1...Bc4
- 2.Qf5#
- 1...Bd5
- 2.Qe3#
- 2.Qf4#
- 2.Qf5#
- 1...Bf5
- 2.Qxf5#
- 1...Bf7
- 2.Qf5#
- 1...Bxg8
- 2.Qf5#
- 1...Sa3
- 2.Qe3#
- 2.Qf4#
- 1...Sd4
- 2.Rf4#
- 2.Qe3#
- 2.Qf4#
- 1...Sa7
- 2.Qe3#
- 2.Qf4#
- 1...Sc7
- 2.Qe3#
- 2.Qf4#
- 1...d5
- 2.Sc5#
- 2.Qe3#
- 2.Qf4#
- 1...Ba1
- Tries
- 1.Kh6?
- threat
- 2.Rf4#
- 1...Bxf6
- 2.Sd2#
- 2.Sxf6#
- 1...Bf5
- 2.Qxf5#
- 1...Bd2
- 2.Sxd2#
- 1...Be5!
- threat
- 1.Kf8?
- threat
- 2.Rf4#
- 1...Bxf6
- 2.Sd2#
- 2.Sxf6#
- 1...Bf5
- 2.Qxf5#
- 1...Bd2
- 2.Sxd2#
- 1...Be5!
- threat
- 1.Kh8?
- 1...Bxf6+
- 2.Sxf6#
- 1...Bxa5
- 2.Rf4#
- 1...Bxb3
- 2.Qf5#
- 1...Bxg8
- 2.Qf5#
- 1...Bf5
- 2.Qxf5#
- 1...Ba1
- 2.Sd2#
- 1...Be1
- 2.Rf4#
- 1...Bb2
- 2.Sd2#
- 1...Bd2
- 2.Sxd2#
- 1...Bb4
- 2.Rf4#
- 1...Bd4
- 2.Sd2#
- 1...Bc4
- 2.Qf5#
- 1...Bd5
- 2.Qe3#
- 2.Qf4#
- 2.Qf5#
- 1...Bf7
- 2.Qf5#
- 1...Sa3
- 2.Qe3#
- 2.Qf4#
- 1...Sd4
- 2.Rf4#
- 2.Qe3#
- 2.Qf4#
- 1...Sa7
- 2.Qe3#
- 2.Qf4#
- 1...Sc7
- 2.Qe3#
- 2.Qf4#
- 1...d5
- 2.Sc5#
- 2.Qe3#
- 2.Qf4#
- 1...Be5!
- 1...Bxf6+
- 1.Bg1?
- 1...Bxf6+
- 2.Sxf6#
- 1...Bxa5
- 2.Rf4#
- 1...Bxb3
- 2.Qf5#
- 1...Bxg8
- 2.Qf5#
- 1...Bf5
- 2.Qxf5#
- 1...Ba1
- 2.Sd2#
- 1...Be1
- 2.Rf4#
- 1...Bb2
- 2.Sd2#
- 1...Bd2
- 2.Sxd2#
- 1...Bb4
- 2.Rf4#
- 1...Bd4
- 2.Sd2#
- 1...Bc4
- 2.Qf5#
- 1...Bd5
- 2.Qe3#
- 2.Qf4#
- 2.Qf5#
- 1...Bf7
- 2.Qf5#
- 1...Sa3
- 2.Qe3#
- 2.Qf4#
- 1...Sd4
- 2.Rf4#
- 2.Qe3#
- 2.Qf4#
- 1...Sa7
- 2.Qe3#
- 2.Qf4#
- 1...Sc7
- 2.Qe3#
- 2.Qf4#
- 1...d5
- 2.Sc5#
- 2.Qe3#
- 2.Qf4#
- 1...Be5!
- 1...Bxf6+
- 1.Bd4?
- threat
- 2.Rf4#
- 1...Bxd4
- 2.Sd2#
- 1...Sxd4
- 2.Qf4#
- 1...Bf5
- 2.Qxf5#
- 1...Bd2!
- threat
- 1.Bb6?
- 1...Bxf6+
- 2.Sxf6#
- 1...Bxa5
- 2.Rf4#
- 1...Bxb3
- 2.Qf5#
- 1...Bxg8
- 2.Qf5#
- 1...Bf5
- 2.Qxf5#
- 1...Bd2
- 2.Sxd2#
- 1...Ba1
- 2.Sd2#
- 1...Be1
- 2.Rf4#
- 1...Bb2
- 2.Sd2#
- 1...Bb4
- 2.Rf4#
- 1...Bd4
- 2.Sd2#
- 1...Bc4
- 2.Qf5#
- 1...Bd5
- 2.Qe3#
- 2.Qf4#
- 2.Qf5#
- 1...Bf7
- 2.Qf5#
- 1...Sa3
- 2.Qe3#
- 2.Qf4#
- 1...Sd4
- 2.Qf4#
- 1...Sa7
- 2.Qe3#
- 2.Qf4#
- 1...Sc7
- 2.Qe3#
- 2.Qf4#
- 1...d5
- 2.Qe3#
- 2.Qf4#
- 1...Be5!
- 1...Bxf6+
- 1.Ba7?
- 1...Bxf6+
- 2.Sxf6#
- 1...Bxa5
- 2.Rf4#
- 1...Bxb3
- 2.Qf5#
- 1...Bxg8
- 2.Qf5#
- 1...Sxa7
- 2.Qf4#
- 1...Bf5
- 2.Qxf5#
- 1...Bd2
- 2.Sxd2#
- 1...Ba1
- 2.Sd2#
- 1...Be1
- 2.Rf4#
- 1...Bb2
- 2.Sd2#
- 1...Bb4
- 2.Rf4#
- 1...Bd4
- 2.Sd2#
- 1...Bc4
- 2.Qf5#
- 1...Bd5
- 2.Qe3#
- 2.Qf4#
- 2.Qf5#
- 1...Bf7
- 2.Qf5#
- 1...Sa3
- 2.Qe3#
- 2.Qf4#
- 1...Sd4
- 2.Qf4#
- 1...Sc7
- 2.Qe3#
- 2.Qf4#
- 1...d5
- 2.Qe3#
- 2.Qf4#
- 1...Be5!
- 1...Bxf6+
- 1.Rxb5?
- threat
- 2.Qe3#
- 2.Qf4#
- 1...Bxf6+
- 2.Sxf6#
- 1...Bd2
- 2.Sxd2#
- 1...Bd4
- 2.Sd2#
- 2.Qf4#
- 1...Be5
- 2.Sd2#
- 2.Qe3#
- 1...axb5!
- threat
- 1.Qc5?
- 1...Bxf6+
- 2.Sxf6#
- 1...Bxa5
- 2.Rf4#
- 1...Bxb3
- 2.Qf5#
- 1...Bxg8
- 2.Qf5#
- 1...Bd5
- 2.Qe3#
- 1...d5
- 2.Qe3#
- 1...Bd2
- 2.Sxd2#
- 1...Ba1
- 2.Sd2#
- 1...Be1
- 2.Rf4#
- 1...Bb2
- 2.Sd2#
- 1...Bb4
- 2.Rf4#
- 1...Bd4
- 2.Sd2#
- 1...Be5
- 2.Sd2#
- 1...Bc4
- 2.Qf5#
- 1...Bf5
- 2.Qxf5#
- 1...Bf7
- 2.Qf5#
- 1...Sa3
- 2.Qe3#
- 1...Sd4
- 2.Rf4#
- 1...Sa7
- 2.Qe3#
- 1...Sc7
- 2.Qe3#
- 1...dxc5!
- 1...Bxf6+
- 1.e8Q?
- threat
- 2.Qf5#
- 1...Bxf6+
- 2.Sxf6#
- 1...Sd4
- 2.Rf4#
- 2.Qe3#
- 2.Qf4#
- 2.Qxg4#
- 2.Qd5#
- 1...Be5!
- threat
- 1.e8S?
- 1...Bxf6+
- 2.Sexf6#
- 2.Sgxf6#
- 1...Bxa5
- 2.Rf4#
- 1...Bxb3
- 2.Qf5#
- 1...Bxg8
- 2.Qf5#
- 1...Bf5
- 2.Qxf5#
- 1...Bd2
- 2.Sxd2#
- 1...Ba1
- 2.Sd2#
- 1...Be1
- 2.Rf4#
- 1...Bb2
- 2.Sd2#
- 1...Bb4
- 2.Rf4#
- 1...Bd4
- 2.Sd2#
- 1...Bc4
- 2.Qf5#
- 1...Bd5
- 2.Qe3#
- 2.Qf4#
- 2.Qf5#
- 1...Bf7
- 2.Qf5#
- 1...Sa3
- 2.Sxd6#
- 2.Qe3#
- 2.Qf4#
- 1...Sd4
- 2.Sxd6#
- 2.Rf4#
- 2.Qe3#
- 2.Qf4#
- 1...Sa7
- 2.Sxd6#
- 2.Qe3#
- 2.Qf4#
- 1...Sc7
- 2.Sxd6#
- 2.Qe3#
- 2.Qf4#
- 1...d5
- 2.Sc5#
- 2.Qe3#
- 2.Qf4#
- 1...Be5!
- 1...Bxf6+
- 1.e8B?
- 1...Bxf6+
- 2.Sxf6#
- 1...Bxa5
- 2.Rf4#
- 1...Bxb3
- 2.Bg6#
- 2.Qf5#
- 1...Bxg8
- 2.Bg6#
- 2.Qf5#
- 1...Bf5
- 2.Qxf5#
- 1...Bd2
- 2.Sxd2#
- 1...Ba1
- 2.Sd2#
- 1...Be1
- 2.Rf4#
- 1...Bb2
- 2.Sd2#
- 1...Bb4
- 2.Rf4#
- 1...Bd4
- 2.Sd2#
- 1...Bc4
- 2.Bg6#
- 2.Qf5#
- 1...Bd5
- 2.Bg6#
- 2.Qe3#
- 2.Qf4#
- 2.Qf5#
- 1...Bf7
- 2.Qf5#
- 1...Sa3
- 2.Qe3#
- 2.Qf4#
- 1...Sd4
- 2.Rf4#
- 2.Qe3#
- 2.Qf4#
- 1...Sa7
- 2.Qe3#
- 2.Qf4#
- 1...Sc7
- 2.Qe3#
- 2.Qf4#
- 1...d5
- 2.Sc5#
- 2.Qe3#
- 2.Qf4#
- 1...Be5!
- 1...Bxf6+
- 1.e8R?
- threat
- 2.Qf5#
- 1...Bxf6+
- 2.Sxf6#
- 1...Sd4
- 2.Rf4#
- 2.Qe3#
- 2.Qf4#
- 2.Qxg4#
- 2.Qd5#
- 1...Be5!
- threat
- 1.Kh6?
- Keys
- 1.Qh5!
- 1...Bxf6+
- 2.Sxf6#
- 1...Bxa5
- 2.Rf4#
- 1...Bxb3
- 2.Qf5#
- 1...Bxg8
- 2.Qf5#
- 1...Be5
- 2.Qh1#
- 1...Bf5
- 2.Qxf5#
- 1...Bd2
- 2.Sxd2#
- 1...Ba1
- 2.Sd2#
- 1...Be1
- 2.Rf4#
- 1...Bb2
- 2.Sd2#
- 1...Bb4
- 2.Rf4#
- 1...Bd4
- 2.Sd2#
- 1...Bc4
- 2.Qf5#
- 1...Bd5
- 2.Qf5#
- 1...Bf7
- 2.Qf5#
- 1...Sa3
- 2.Qh1#
- 1...Sd4
- 2.Rf4#
- 1...Sa7
- 2.Qh1#
- 1...Sc7
- 2.Qh1#
- 1...d5
- 2.Sc5#
- 1...Bxf6+
- 1.Qh5!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 7
- REMOVED MATES = 0
- Sets
- B(a);N_GUARD::S(C)
- B(a);N_PINR(H)::R1(H)
- B(a);N_GUARD,N_PINR(H)::S(C),XB(a)
- B(a);N_PINR(H),XR(F)::R1(H)
- B(a);CHECK,XR(H)::S(K),XB(a)
- B(g);N_GUARD,XS(C)::QAB1(G)
- B(g);N_GUARD::QAB1(G)
- B(g);N_GUARD::QAB1(G),XB(g)
- B(g);N_GUARD,XS(K)::QAB1(G)
- Tries
- Try
- K(J);N_SPINR(H),S_FLIGHT
- Threat
- R1(H)
- Vars
- B(g);N_GUARD::QAB1(G),XB(g)
- B(a);N_GUARD,P_PINQ(G)::S(C),XB(a)
- Refutation
- B(a);
- Try
- K(J);N_SPINR(H),S_FLIGHT
- Threat
- R1(H)
- Vars
- B(g);N_GUARD::QAB1(G),XB(g)
- B(a);N_GUARD::S(C),XB(a)
- Refutation
- B(a);
- Try
- K(J);S_FLIGHT
- Vars
- B(a);CHECK,XR(H)::S(K),XB(a)
- B(a);N_PINR(H),XR(F)::R1(H)
- B(g);N_GUARD,XS(C)::QAB1(G)
- B(g);N_GUARD,XS(K)::QAB1(G)
- B(g);N_GUARD::QAB1(G),XB(g)
- B(a);N_GUARD::S(C)
- B(a);N_PINR(H)::R1(H)
- B(a);N_GUARD,N_PINR(H)::S(C),XB(a)
- B(g);N_GUARD::QAB1(G)
- Refutation
- B(a);
- Try
- B(B);
- Vars
- B(a);CHECK,XR(H)::S(K),XB(a)
- B(a);N_PINR(H),XR(F)::R1(H)
- B(g);N_GUARD,XS(C)::QAB1(G)
- B(g);N_GUARD,XS(K)::QAB1(G)
- B(g);N_GUARD::QAB1(G),XB(g)
- B(a);N_GUARD::S(C)
- B(a);N_PINR(H)::R1(H)
- B(a);N_GUARD,N_PINR(H)::S(C),XB(a)
- B(g);N_GUARD::QAB1(G)
- Refutation
- B(a);
- Try
- B(B);N_SPINR(H)
- Threat
- R1(H)
- Vars
- B(a);N_GUARD,P_PINR(H),SBLOCK,XB(B)::S(C)
- S(d);XB(B)::QAR1(G)
- B(g);N_GUARD::QAB1(G),XB(g)
- Refutation
- B(a);
- Try
- B(B);
- Vars
- B(a);CHECK,XR(H)::S(K),XB(a)
- B(a);N_PINR(H),XR(F)::R1(H)
- B(g);N_GUARD,XS(C)::QAB1(G)
- B(g);N_GUARD,XS(K)::QAB1(G)
- B(g);N_GUARD::QAB1(G),XB(g)
- B(a);N_GUARD,N_PINR(H)::S(C),XB(a)
- B(a);N_GUARD::S(C)
- B(a);N_PINR(H)::R1(H)
- B(g);N_GUARD::QAB1(G)
- S(d);N_PINR(H)::QAR1(G)
- Refutation
- B(a);
- Try
- B(B);
- Vars
- B(a);CHECK,XR(H)::S(K),XB(a)
- B(a);N_PINR(H),XR(F)::R1(H)
- B(g);N_GUARD,XS(C)::QAB1(G)
- B(g);N_GUARD,XS(K)::QAB1(G)
- S(d);XB(B)::QAR1(G)
- B(g);N_GUARD::QAB1(G),XB(g)
- B(a);N_GUARD,N_PINR(H)::S(C),XB(a)
- B(a);N_GUARD::S(C)
- B(a);N_PINR(H)::R1(H)
- B(g);N_GUARD::QAB1(G)
- S(d);N_PINR(H)::QAR1(G)
- Refutation
- B(a);
- Try
- R(F);XS(d)
- Threat
- DUALS(2)
- Vars
- B(a);CHECK,XR(H)::S(K),XB(a)
- B(a);N_GUARD,N_PINR(H)::S(C),XB(a)
- Refutation
- P(e);XR(F)
- Try
- Q(G);
- Vars
- B(a);CHECK,XR(H)::S(K),XB(a)
- B(a);N_PINR(H),XR(F)::R1(H)
- B(g);N_GUARD,XS(C)::QAB1(G)
- B(g);N_GUARD,XS(K)::QAB1(G)
- B(g);SBLOCK::QAR1(G)
- P(f);SBLOCK::QAR1(G)
- B(a);N_GUARD,N_PINR(H)::S(C),XB(a)
- B(a);N_GUARD::S(C)
- B(a);N_PINR(H)::R1(H)
- B(g);N_GUARD::QAB1(G)
- B(g);N_GUARD::QAB1(G),XB(g)
- S(d);::QAR1(G)
- S(d);N_PINR(H)::R1(H)
- Refutation
- P(f);XQ(G)
- Try
- P(I);P_PINB(g)
- Threat
- QAB1(G)
- Vars
- B(a);CHECK,XR(H)::S(K),XB(a)
- Refutation
- B(a);N_SPINB(g)
- Try
- P(I);
- Vars
- B(a);N_PINR(H),XR(F)::R1(H)
- B(g);N_GUARD,XS(C)::QAB1(G)
- B(g);N_GUARD,XS(K)::QAB1(G)
- B(g);N_GUARD::QAB1(G),XB(g)
- B(a);N_GUARD,N_PINR(H)::S(C),XB(a)
- B(a);N_GUARD::S(C)
- B(a);N_PINR(H)::R1(H)
- B(g);N_GUARD::QAB1(G)
- Refutation
- B(a);
- Try
- P(I);
- Vars
- B(a);CHECK,XR(H)::S(K),XB(a)
- B(a);N_PINR(H),XR(F)::R1(H)
- B(g);N_GUARD::QAB1(G),XB(g)
- B(a);N_GUARD,N_PINR(H)::S(C),XB(a)
- B(a);N_GUARD::S(C)
- B(a);N_PINR(H)::R1(H)
- B(g);N_GUARD::QAB1(G)
- Refutation
- B(a);
- Try
- P(I);P_PINB(g)
- Threat
- QAB1(G)
- Vars
- B(a);CHECK,XR(H)::S(K),XB(a)
- Refutation
- B(a);N_SPINB(g)
- Try
- Actual
- Q(G);
- Vars
- B(a);CHECK,XR(H)::S(K),XB(a)
- B(a);N_PINR(H),XR(F)::R1(H)
- B(g);N_GUARD,XS(C)::QAB1(G)
- B(g);N_GUARD,XS(K)::QAB1(G)
- B(a);SBLOCK::QAB(G)
- B(g);N_GUARD::QAB1(G),XB(g)
- B(a);N_GUARD,N_PINR(H)::S(C),XB(a)
- B(a);N_GUARD::S(C)
- B(a);N_PINR(H)::R1(H)
- B(g);N_GUARD::QAB1(G)
- S(d);::QAB(G)
- S(d);N_PINR(H)::R1(H)
- P(f);N_GUARD::S(C)
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).