MESON Chess Problem Database
Problem Display
PID: 104685 (1B6/7K/4P3/1p2P1p1/1Rn1nkP1/2P4P/3N1PB1/Q7 w - - 0 1)
Rice, John Michael
32er, 1996
#2
12 + 5
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Sb2
- 2.Rxe4#
- 1...Sa3
- 2.Rxe4#
- 1...Se3
- 2.Rxe4#
- 1...Sa5
- 2.Rxe4#
- 1...Sxe5
- 2.Rxe4#
- 1...Sb6
- 2.Rxe4#
- 1...Sf6+
- 2.exf6#
- 1...Sb2
- Tries
- 1.Qe1?
- threat
- 2.Qxe4#
- 1...Sf6+
- 2.exf6#
- 1...Scxd2
- 2.Qxd2#
- 2.Qe3#
- 1...Sexd2
- 2.Qxd2#
- 2.Qe3#
- 1...Sxf2
- 2.Qxf2#
- 1...Sxc3
- 2.Qe3#
- 1...Se3
- 2.Rxe4#
- 2.Qxe3#
- 2.fxe3#
- 1...Sg3
- 2.Qe3#
- 2.fxg3#
- 1...Sc5
- 2.Qe3#
- 1...Sed6
- 2.Qe3#
- 1...Scd6!
- threat
- 1.Qg1?
- 1...Sf6+
- 2.exf6#
- 1...Scxd2
- 2.Qh2#
- 1...Sxe5
- 2.Rxe4#
- 2.Qh2#
- 1...Sexd2
- 2.Qh2#
- 1...Sxf2
- 2.Qxf2#
- 1...Sxc3
- 2.Qh2#
- 1...Scd6
- 2.Qh2#
- 1...Sed6
- 2.Qh2#
- 1...Sb2
- 2.Rxe4#
- 2.Qh2#
- 1...Sa3
- 2.Rxe4#
- 2.Qh2#
- 1...Se3
- 2.Rxe4#
- 2.Qh2#
- 1...Sa5
- 2.Rxe4#
- 2.Qh2#
- 1...Sb6
- 2.Rxe4#
- 2.Qh2#
- 1...Sc5
- 2.Qh2#
- 1...Sg3!
- 1...Sf6+
- 1.Qa7?
- 1...Sf6+
- 2.exf6#
- 1...Scxd2
- 2.Qe3#
- 2.Qf7#
- 1...Sxe5
- 2.Rxe4#
- 2.Qe3#
- 2.Qf7#
- 1...Sexd2
- 2.Qe3#
- 2.Qf7#
- 1...Sxf2
- 2.Qxf2#
- 1...Sxc3
- 2.Qe3#
- 2.Qf7#
- 1...Sed6
- 2.Qe3#
- 1...Sg3
- 2.Qe3#
- 1...Sb2
- 2.Rxe4#
- 2.Qe3#
- 2.Qf7#
- 1...Sa3
- 2.Rxe4#
- 2.Qe3#
- 2.Qf7#
- 1...Se3
- 2.Rxe4#
- 2.Qxe3#
- 1...Sa5
- 2.Rxe4#
- 2.Qe3#
- 2.Qf7#
- 1...Sb6
- 2.Rxe4#
- 2.Qf7#
- 1...Sc5
- 2.Qf7#
- 1...Scd6!
- 1...Sf6+
- 1.Qe1?
- Keys
- 1.Qc1!
- 1...Sf6+
- 2.exf6#
- 1...Scxd2
- 2.Rxe4#
- 2.Qxd2#
- 1...Sxe5
- 2.Sb1#
- 2.Sf1#
- 2.Sb3#
- 2.Sf3#
- 2.Sxe4#
- 2.Rxe4#
- 1...Sexd2
- 2.Qxd2#
- 1...Sxf2
- 2.Sf1#
- 1...Sxc3
- 2.Sb1#
- 2.Sf1#
- 2.Sb3#
- 2.Sxc4#
- 1...Scd6
- 2.Sf3#
- 1...Sed6
- 2.Sxc4#
- 1...Sb2
- 2.Sb1#
- 2.Sf1#
- 2.Sb3#
- 2.Sf3#
- 2.Sxe4#
- 2.Rxe4#
- 1...Sa3
- 2.Sb1#
- 2.Sf1#
- 2.Sb3#
- 2.Sf3#
- 2.Sxe4#
- 2.Rxe4#
- 1...Se3
- 2.Rxe4#
- 1...Sa5
- 2.Sb1#
- 2.Sf1#
- 2.Sb3#
- 2.Sf3#
- 2.Sxe4#
- 2.Rxe4#
- 1...Sb6
- 2.Sb1#
- 2.Sf1#
- 2.Sb3#
- 2.Sf3#
- 2.Sxe4#
- 2.Rxe4#
- 1...Sg3
- 2.Sb1#
- 2.Sf1#
- 2.Sb3#
- 2.Sxc4#
- 1...Sc5
- 2.Sb1#
- 2.Sf1#
- 2.Sb3#
- 2.Sxc4#
- 1...Sf6+
- 1.Qc1!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 5
- Sets
- S(a);OGATE,P_SPINS(b)::R1(G),XS(b)
- S(a);OGATE,P_SPINS(b),XP(I)::R1(G),XS(b)
- S(b);CHECK,OGATE,P_SPINS(a)::B(L)+P(I),XS(b)
- Tries
- Try
- Q(A);
- Threat
- QAR1(A),XS(b)
- Vars
- S(b);CHECK,OGATE,P_SPINS(a)::B(L)+P(I),XS(b)
- S(b);OGATE,P_SPINS(a),XP(C)::QAR2(A),XS(b)
- S(b);P_SPINS(a),XP(E)::QAB1(A)
- S(b);P_SPINS(a)::QAB1(A)
- Refutation
- S(a);P_SPINS(b)
- Try
- Q(A);
- Vars
- S(b);CHECK,OGATE,P_SPINS(a)::B(L)+P(I),XS(b)
- S(a);P_SPINS(b),XS(B)::QAB(A)
- S(b);N_GUARD,P_SPINS(a),XS(B)::QAB(A)
- S(b);OGATE,P_SPINS(a),XP(C)::QAR2(A),XS(b)
- S(b);N_GUARD,P_SPINS(a),XP(E)::QAB(A)
- S(a);P_SPINS(b)::QAB(A)
- S(b);N_GUARD,P_SPINS(a)::QAB(A)
- Refutation
- S(b);P_SPINS(a)
- Try
- Q(A);
- Vars
- S(b);CHECK,OGATE,P_SPINS(a)::B(L)+P(I),XS(b)
- S(b);OGATE,P_SPINS(a),XP(C)::QAR2(A),XS(b)
- S(b);P_SPINS(a)::QAB1(A)
- S(b);N_GUARD,P_SPINS(a)::QAR(A)
- Refutation
- S(a);P_SPINS(b)
- Try
- Actual
- Q(A);
- Vars
- S(b);CHECK,OGATE,P_SPINS(a)::B(L)+P(I),XS(b)
- S(b);OGATE,P_SPINS(b),XS(B)::QAB(A),XS(b)
- S(b);N_GUARD,P_SPINS(a),XP(C)::QAB(A)+S(B)
- S(a);N_GUARD,P_SPINS(b)::QAB(A)+S(B)
- S(b);N_GUARD,P_SPINS(a)::QAB(A)+S(B),XS(a)
- S(a);OGATE,P_SPINS(b)::R1(G),XS(b)
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).