MESON Chess Problem Database
Problem Display
PID: 135995 (6br/2P1R3/1prk1P2/1P1Pp1N1/PKpQ4/BBR5/6qb/8 w - - 0 1)
Fastosky, Pedro
4th HM., BCF 095. Ty., 1960-1961
#2
12 + 9
SOLUTION
- SOUND
- Sets
- 1...Qf1
- 2.Se4#
- 1...Qh3
- 2.Se4#
- 1...Qe4
- 2.Sxe4#
- 1...Qxd5
- 2.Se4#
- 1...Qg1
- 2.Se4#
- 1...Qa2
- 2.Se4#
- 1...Qb2
- 2.Se4#
- 1...Qd2
- 2.Se4#
- 1...Qf2
- 2.Se4#
- 1...Qg3
- 2.Se4#
- 1...Bg1
- 2.Qxe5#
- 1...Bxd5
- 2.Sf7#
- 1...Bf7
- 2.Sxf7#
- 1...Bh7
- 2.Sf7#
- 1...cxb3
- 2.Rxc6#
- 1...Qf1
- Tries
- 1.bxc6?
- threat
- 2.Kxc4#
- 2.Kb5#
- 2.Rd7#
- 2.c8S#
- 1...Bxd5
- 2.Kb5#
- 1...cxb3
- 2.Kxb3#
- 2.Kc4#
- 2.Kb5#
- 2.Rd7#
- 2.c8S#
- 1...exd4
- 2.Kxc4#
- 1...Qf1
- 2.Kb5#
- 2.Se4#
- 2.Rd7#
- 2.c8S#
- 1...Qh3
- 2.Kxc4#
- 2.Kb5#
- 2.Se4#
- 1...Qa2
- 2.Se4#
- 2.Rd7#
- 2.c8S#
- 1...Qb2
- 2.Se4#
- 2.Rd7#
- 2.c8S#
- 1...Qe2
- 2.Kb5#
- 2.Rd7#
- 2.c8S#
- 1...Qg4
- 2.Kxc4#
- 2.Kb5#
- 1...Rh7
- 2.Kxc4#
- 2.Kb5#
- 2.c8S#
- 1...Be6
- 2.Kxc4#
- 2.Kb5#
- 1...Bf7
- 2.Kxc4#
- 2.Kb5#
- 2.Sxf7#
- 2.Rd7#
- 1...Bh7
- 2.Kxc4#
- 2.Kb5#
- 2.Sf7#
- 2.Rd7#
- 1...b5
- 2.Kxb5#
- 2.Rd7#
- 2.Qc5#
- 2.c8S#
- 1...Qxd5!
- threat
- 1.dxc6+?
- 1...Qd5
- 2.Se4#
- 2.Rd7#
- 2.c8S#
- 1...Bd5
- 2.Sf7#
- 2.Rd7#
- 1...exd4!
- 1...Qd5
- 1.c8Q?
- threat
- 2.Rd7#
- 2.Qd7#
- 2.Qxc6#
- 2.Qd8#
- 1...Bxd5
- 2.Sf7#
- 2.Re6#
- 2.Rd7#
- 2.Qe6#
- 2.Qd7#
- 2.Qxc6#
- 1...exd4
- 2.Qd7#
- 2.Qxc6#
- 2.Qd8#
- 1...Qh3
- 2.Se4#
- 2.Qxc6#
- 1...Qg4
- 2.Qxc6#
- 1...Rc5
- 2.Rd7#
- 2.Qd7#
- 2.Qd8#
- 1...Rc7
- 2.Qxc7#
- 1...Rh7
- 2.Qd7#
- 2.Qxc6#
- 2.Qd8#
- 1...Be6
- 2.Rxe6#
- 2.Qxe6#
- 2.Qxc6#
- 1...Bf7
- 2.Sxf7#
- 2.Rd7#
- 2.Qd7#
- 2.Qxc6#
- 1...Bh7
- 2.Sf7#
- 2.Re6#
- 2.Rd7#
- 2.Qe6#
- 2.Qd7#
- 2.Qxc6#
- 1...Rxc8!
- threat
- 1.bxc6?
- Keys
- 1.Qxb6!
- threat
- 2.Qxc6#
- 1...Kxd5
- 2.Rd3#
- 1...Qxd5
- 2.c8S#
- 1...Rxb6
- 2.Kxc4#
- 1...Bxd5
- 2.Ka5#
- threat
- 1.Qxb6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 2
- REMOVED MATES = 13
- Sets
- Q(a);N_GUARD::S(I)
- Q(a);N_GUARD::S(I),XQ(a)
- Q(a);N_GUARD,P_SPINQ(a),XP(H)::S(I)
- Q(a);N_GUARD,P_PINB(B)::S(I)
- Q(a);N_GUARD,P_PINR(C)::S(I)
- B(b);N_GUARD::QAB1(F),XP(d)
- B(h);N_GUARD,P_SPINB(h),XP(H)::S(I)
- B(h);N_GUARD::S(I),XB(h)
- B(h);N_GUARD::S(I)
- P(c);OGATE,XB(B)::R1(C),XR(f)
- Tries
- Try
- P(G);XR(f)
- Threat
- DUALS(4)
- Vars
- B(h);P_SPINB(h),XP(H)::B(A)+K(E)
- P(d);XQ(F)::B(A)+K(E),XP(c)
- Refutation
- Q(a);P_SPINQ(a),XP(H)
- Try
- P(H);CHECK,XR(f)
- Refutation
- P(d);XQ(F)
- Try
- P(K);
- Threat
- DUALS(4)
- Vars
- Q(a);::QAR1(K),XR(f)
- R(f);N_GUARD::QAB1(K),XR(f)
- Refutation
- R(f);XQ(K)
- Try
- Actual
- Q(F);P_PINR(f),XP(e)
- Threat
- QAR1(F),XR(f)
- Vars
- K(g);N_SPINR(f),OGATEB,P-FLIGHT,P_SPINP(c),XP(H)::R(C)
- Q(a);SBLOCK,XP(H)::P=S
- R(f);N_SPINR(f),P_PINP(G),XQ(F)::B(A)+K(E),XP(c)
- B(h);SBLOCK,XP(H)::B(A)+K(E)
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).