MESON Chess Problem Database
Problem Display
PID: 206514 (3N3B/1pK2Pn1/3R1rp1/3Pk1p1/5pP1/Q1P1rB2/4n3/4R3 w - - 0 1)
Millins, James Lever
Brisbane Courier, 1925
#2
11 + 9
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Rxc3+
- 2.Qxc3#
- 1...Rf5
- 2.Re6#
- 1...Rxd6
- 2.Qxd6#
- 1...Re6
- 2.Rxe6#
- 1...Rxf7+
- 2.Sxf7#
- 1...Sxc3
- 2.Qxc3#
- 1...Sf5
- 2.Bxf6#
- 2.Re6#
- 1...Sh5
- 2.Re6#
- 1...Se6+
- 2.Rxe6#
- 1...Se8+
- 2.fxe8Q#
- 2.fxe8R#
- 1...b5
- 2.Sc6#
- 1...b6
- 2.Sc6#
- 1...Rxc3+
- Tries
- 1.Bxg7?
- threat
- 2.Bxf6#
- 2.Re6#
- 1...Rxc3+
- 2.Qxc3#
- 1...Sxc3
- 2.Bxf6#
- 2.Qxc3#
- 1...Re4
- 2.Bxf6#
- 1...Sd4
- 2.Bxf6#
- 1...Rxf3!
- threat
- 1.Rxe2?
- 1...Rxf7+
- 2.Sxf7#
- 1...Se6+
- 2.Rxe6#
- 1...Se8+
- 2.fxe8Q#
- 2.fxe8R#
- 1...Rxd6
- 2.Qxd6#
- 1...Re6
- 2.Rxe6#
- 1...Re4
- 2.Rxe4#
- 1...Rf5
- 2.Re6#
- 1...Sf5
- 2.Bxf6#
- 2.Re6#
- 1...Sh5
- 2.Re6#
- 1...b5
- 2.Sc6#
- 1...b6
- 2.Sc6#
- 1...Rxe2!
- 1...Rxf7+
- 1.f8Q?
- threat
- 2.Qxf6#
- 1...Rxc3+
- 2.Qxc3#
- 1...Rf7+
- 2.Sxf7#
- 1...Se6+
- 2.Rxe6#
- 1...Se8+
- 2.Qxe8#
- 1...Rxd6
- 2.Qaxd6#
- 2.Qfxd6#
- 1...Rxf8
- 2.Re6#
- 1...Rf5
- 2.Re6#
- 2.Qe7#
- 2.Qe8#
- 1...Re6
- 2.Rxe6#
- 1...Sh5
- 2.Sf7#
- 2.Re6#
- 2.Qe7#
- 2.Qe8#
- 1...Rxf3!
- threat
- 1.Bxg7?
- Keys
- 1.Qb4!
- 1...Rxc3+
- 2.Qxc3#
- 1...Rxf7+
- 2.Sxf7#
- 1...Se6+
- 2.Rxe6#
- 1...Se8+
- 2.fxe8Q#
- 2.fxe8R#
- 1...Rxf3
- 2.Qd4#
- 1...Rxd6
- 2.Qxd6#
- 1...Sxc3
- 2.Qxc3#
- 1...Re6
- 2.Rxe6#
- 1...Rd3
- 2.Qe4#
- 1...Re4
- 2.Qxe4#
- 1...Rf5
- 2.Re6#
- 1...Sc1
- 2.Qd4#
- 1...Sg1
- 2.Qd4#
- 1...Sg3
- 2.Qd4#
- 1...Sd4
- 2.Qxd4#
- 2.cxd4#
- 1...Sf5
- 2.Bxf6#
- 2.Re6#
- 1...Sh5
- 2.Re6#
- 1...b5
- 2.Sc6#
- 1...b6
- 2.Sc6#
- 1...Rxc3+
- 1.Qb4!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 6
- REMOVED MATES = 0
- Sets
- R(b);CHECK,OGATE,P_SPINS(a),XP(C)::QAB(B),XR(b)
- R(f);N_GUARD,P_SPINS(i)::R1(G)
- R(f);OGATE,P_SPINS(i),XR(G)::QAB1(B),XR(f)
- R(f);N_GUARD,P_SPINS(i)::R1(G),XR(f)
- R(f);CHECK,P_SPINS(i),XP(I)::S(J),XR(f)
- S(a);OGATE,P_SPINR(b),XP(C)::QAB(B),XS(a)
- S(i);N_GUARD,P_SPINR(f)::R1(G)
- S(i);CHECK,N_GUARD,P_SPINR(f)::R1(G),XS(i)
- S(i);CHECK,OGATE,P_SPINR(f)::PXS(i)=Q
- P(h);N_GUARD::S(J)
- Tries
- Try
- B(K);P_PINR(f),XS(i)
- Threat
- DUALS(2)
- Vars
- R(b);CHECK,OGATE,P_SPINS(a),XP(C)::QAB(B),XR(b)
- R(b);::B(K),XR(f)
- S(a);N_SPINR(f),P_SPINR(b)::B(K),XR(f)
- Refutation
- R(b);P_SPINS(a),XB(D)
- Try
- R(A);P_PINR(b),XS(a)
- Vars
- R(f);CHECK,P_SPINS(i),XP(I)::S(J),XR(f)
- S(i);CHECK,N_GUARD,S_CUTR(f)::R1(G),XS(i)
- S(i);CHECK,OGATE::PXS(i)=Q
- R(f);OGATE,P_SPINS(i),XR(G)::QAB1(B),XR(f)
- R(f);N_GUARD,P_SPINS(i)::R1(G),XR(f)
- R(b);OGATE::R1(A),XR(b)
- R(f);N_GUARD,P_SPINS(i)::R1(G)
- S(i);N_GUARD,S_CUTR(f)::R1(G)
- P(h);N_GUARD::S(J)
- Refutation
- R(b);N_SPINR(b),XR(A)
- Try
- P(I);
- Threat
- QAB1(I),XR(f)
- Vars
- R(b);CHECK,OGATE,P_SPINS(a),XP(C)::QAB(B),XR(b)
- R(f);CHECK,N_GUARD,P_SPINS(i)::S(J),XR(f)
- S(i);CHECK,N_GUARD,P_SPINR(f)::R1(G),XS(i)
- S(i);CHECK,N_GUARD,P_SPINR(f)::QAR(I),XS(i)
- R(f);N_GUARD,P_SPINS(i),XQ(I)::R1(G)
- R(f);N_GUARD,P_SPINS(i)::R1(G),XR(f)
- Refutation
- R(b);P_SPINS(a),XB(D)
- Try
- Actual
- Q(B);
- Vars
- R(b);CHECK,OGATE,P_SPINS(a),XP(C)::QAB(B),XR(b)
- R(f);CHECK,P_SPINS(i),XP(I)::S(J),XR(f)
- S(i);CHECK,N_GUARD,P_SPINR(f)::R1(G),XS(i)
- S(i);CHECK,OGATE,P_SPINR(f)::PXS(i)=Q
- R(b);P_SPINS(a),XB(D)::QAB1(B)
- R(f);OGATE,P_SPINS(i),XR(G)::QAB1(B),XR(f)
- S(a);OGATE,P_SPINR(b),XP(C)::QAB(B),XS(a)
- R(f);N_GUARD,P_SPINS(i)::R1(G),XR(f)
- R(b);N_GUARD,P_SPINS(a)::QAR1(B)
- R(b);N_GUARD::QAR1(B),XR(b)
- R(f);N_GUARD,P_SPINS(i)::R1(G)
- S(a);N_GUARD,P_SPINR(b)::QAB1(B)
- S(i);N_GUARD,P_SPINR(f)::R1(G)
- P(h);N_GUARD::S(J)
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).