MESON Chess Problem Database
Problem Display
PID: 51386 (n1B2B2/P1p3rr/1pk3NR/7Q/P7/N1P5/1qpb2K1/3R2n1 w - - 0 1)
Eaton, Vincent Lanius
Manchester Guardian, 1959
#2
11 + 10
SOLUTION
- SOUND
- Sets
- 1...Qa1
- 2.Qb5#
- 1...Qc1
- 2.Qb5#
- 1...Qxa3
- 2.Qb5#
- 1...Qxc3
- 2.Qb5#
- 1...Qa2
- 2.Qb5#
- 1...Qb5
- 2.Qxb5#
- 2.axb5#
- 1...Rxg6+
- 2.Rxg6#
- 1...Rd7
- 2.Se7#
- 1...Re7
- 2.Sxe7#
- 1...Rf7
- 2.Se7#
- 1...Bc1
- 2.Qd5#
- 1...Be1
- 2.Qd5#
- 1...Bxc3
- 2.Qd5#
- 1...Be3
- 2.Qd5#
- 1...Bf4
- 2.Qd5#
- 1...Bg5
- 2.Se5#
- 1...Bxh6
- 2.Qd5#
- 1...Se2
- 2.Qf3#
- 1...Sf3
- 2.Qxf3#
- 1...Sh3
- 2.Qf3#
- 1...b5
- 2.Qc5#
- 1...Qa1
- Tries
- 1.Kh1?
- threat
- 2.Se7#
- 1...Rxg6
- 2.Rxg6#
- 1...Bxh6
- 2.Se5#
- 2.Qd5#
- 1...Re7
- 2.Sxe7#
- 1...Bg5
- 2.Se5#
- 1...Rxh6!
- threat
- 1.Bb4?
- threat
- 2.Qb5#
- 1...Rxg6+
- 2.Rxg6#
- 1...b5
- 2.Qxb5#
- 2.Qc5#
- 1...Bg5
- 2.Se5#
- 2.Se7#
- 1...Qxb4!
- threat
- 1.Rxd2?
- threat
- 2.Qd5#
- 1...Rxg6+
- 2.Rxg6#
- 2.Qxg6#
- 1...b5
- 2.Qc5#
- 1...Qa2
- 2.Qb5#
- 1...Qb5
- 2.Qxb5#
- 2.axb5#
- 1...Rd7
- 2.Se5#
- 2.Se7#
- 1...Qb3!
- threat
- 1.Qg5?
- threat
- 2.Se7#
- 1...Rxg6
- 2.Rxg6#
- 1...Bxg5
- 2.Se5#
- 1...Re7
- 2.Sxe7#
- 1...Rxh6!
- threat
- 1.Kh1?
- Keys
- 1.Sxc2!
- threat
- 2.Sd4#
- 1...Rxg6+
- 2.Rxg6#
- 1...Qxc3
- 2.Qb5#
- 1...Qxc2
- 2.Qb5#
- 1...Bxc3
- 2.Qd5#
- 1...Bxh6
- 2.Qd5#
- 1...Re7
- 2.Sxe7#
- 1...b5
- 2.Qc5#
- 1...Qb4
- 2.Sxb4#
- 1...Rd7
- 2.Se7#
- 1...Bc1
- 2.Qd5#
- 1...Be1
- 2.Qd5#
- 1...Be3
- 2.Qd5#
- 1...Bf4
- 2.Qd5#
- 1...Bg5
- 2.Se5#
- 1...Se2
- 2.Qf3#
- 1...Sf3
- 2.Qxf3#
- threat
- 1.Sxc2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 6
- Sets
- Q(b);N_GUARD::QAB1(F)
- Q(b);N_GUARD,XS(C)::QAB1(F)
- Q(b);N_GUARD,XP(D)::QAB1(F)
- R(h);CHECK,OGATE,P_SPINR(h),XS(G)::R(H),XR(h)
- R(h);N_PINS(G)::R(H)+S(G),DCHECK
- R(h);N_PINS(G)::R(H)+S(G),DCHECK,XR(h)
- B(d);::QAB1(F)
- B(d);XP(D)::QAB1(F)
- B(d);N_PINS(G)::R(H)+S(G),DCHECK
- B(d);XR(H)::QAB1(F)
- S(a);N_GUARD::QAB(F)
- S(a);N_GUARD::QAB(F),XS(a)
- P(e);N_GUARD::QAR1(F)
- Tries
- Try
- K(B);N_SPINS(G),S_FLIGHT
- Threat
- R(H)+S(G),DCHECK
- Vars
- R(h);OGATE,P_SPINR(h),XS(G)::R(H),XR(h)
- R(h);::R(H)+S(G),DCHECK,XR(h)
- B(d);::R(H)+S(G),DCHECK
- Refutation
- R(i);P_PINQ(F),XR(H)
- Try
- B(K);
- Threat
- QAB1(F)
- Vars
- R(h);CHECK,OGATE,P_SPINR(h),XS(G)::R(H),XR(h)
- Refutation
- Q(b);XB(K)
- Try
- R(A);XB(d)
- Threat
- QAB1(F)
- Vars
- P(e);N_GUARD::QAR1(F)
- Q(b);N_GUARD::QAB1(F)
- Refutation
- Q(b);
- Try
- Q(F);N_SPINS(G)
- Threat
- R(H)+S(G),DCHECK
- Vars
- R(h);OGATE,P_PINQ(F),P_SPINR(h),XS(G)::R(H),XR(h)
- B(d);XQ(F)::R(H)+S(G),DCHECK
- R(h);::R(H)+S(G),DCHECK,XR(h)
- Refutation
- R(i);XR(H)
- Try
- Actual
- S(C);XP(c)
- Threat
- S(C)
- Vars
- R(h);CHECK,OGATE,P_SPINR(h),XS(G)::R(H),XR(h)
- Q(b);N_GUARD,XP(D)::QAB1(F)
- Q(b);N_GUARD,XS(C)::QAB1(F)
- B(d);N_PINS(G),P_PINS(C),XP(D)::QAB1(F)
- B(d);N_PINS(G),P_PINS(C),XR(H)::QAB1(F)
- R(h);N_PINS(G)::R(H)+S(G),DCHECK,XR(h)
- P(e);N_GUARD::QAR1(F)
- Q(b);N_GUARD::S(C),XQ(b)
- R(h);N_PINS(G)::R(H)+S(G),DCHECK
- B(d);N_PINS(G),P_PINS(C)::QAB1(F)
- B(d);N_PINS(G),P_PINS(C)::R(H)+S(G),DCHECK
- S(a);N_GUARD::QAB(F)
- S(a);N_GUARD::QAB(F),XS(a)
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).