MESON Chess Problem Database
Problem Display
PID: 150420 (r1N1K2B/1B6/r1np1Pp1/b2P1kp1/1R2N3/3Pqn1P/7Q/8 w - - 0 1)
Stoyanov, Kiril N
Chess, 1955
#2
11 + 10
SOLUTION
- SOUND
- Sets
- 1...Qc1
- 2.Sxd6#
- 1...Qg1
- 2.Sxd6#
- 1...Qd2
- 2.Sxd6#
- 1...Qf2
- 2.Sxd6#
- 1...Qd4
- 2.Sxd6#
- 1...Qb6
- 2.Sxd6#
- 1...Qa7
- 2.Sxd6#
- 1...Qxd3
- 2.Sxd6#
- 1...Qxe4+
- 2.dxe4#
- 1...Ra7
- 2.Sxd6#
- 1...Rxc8+
- 2.Bxc8#
- 1...Bd8
- 2.Sxd6#
- 1...Sfe5
- 2.Sxd6#
- 1...Sce5
- 2.Sg3#
- 1...Sb8
- 2.Se7#
- 1...Sd8
- 2.Se7#
- 1...Qc1
- Tries
- 1.Qe5+?
- 1...Sfxe5
- 2.Sxd6#
- 1...Scxe5
- 2.Sg3#
- 1...dxe5
- 2.Sg3#
- 2.Sd6#
- 1...Kxe5!
- 1...Sfxe5
- 1.Qe5+?
- Keys
- 1.f7!
- threat
- 2.f8Q#
- 2.f8R#
- 1...Qxe4+
- 2.dxe4#
- 1...Rxc8+
- 2.Bxc8#
- 1...Qxd3
- 2.Sg3#
- 2.Sxd6#
- 2.f8Q#
- 2.f8R#
- 1...Bxb4
- 2.f8Q#
- 2.f8R#
- 1...Sxh2
- 2.f8Q#
- 2.f8R#
- 1...Sxb4
- 2.f8Q#
- 2.f8R#
- 1...Qc1
- 2.Sg3#
- 2.Sxd6#
- 2.f8Q#
- 2.f8R#
- 1...Qg1
- 2.Sxd6#
- 2.f8Q#
- 2.f8R#
- 1...Qd2
- 2.Sg3#
- 2.Sxd6#
- 2.f8Q#
- 2.f8R#
- 1...Qf2
- 2.Sxd6#
- 2.f8Q#
- 2.f8R#
- 1...Qd4
- 2.Sxd6#
- 1...Qf4
- 2.f8Q#
- 2.f8R#
- 1...Qc5
- 2.Sg3#
- 2.f8Q#
- 2.f8R#
- 1...Qb6
- 2.Sg3#
- 2.Sxd6#
- 2.f8Q#
- 2.f8R#
- 1...Qa7
- 2.Sg3#
- 2.Sxd6#
- 2.f8Q#
- 2.f8R#
- 1...Qe1
- 2.f8Q#
- 2.f8R#
- 1...Qe2
- 2.f8Q#
- 2.f8R#
- 1...Rb6
- 2.f8Q#
- 2.f8R#
- 1...R6a7
- 2.f8Q#
- 2.f8R#
- 1...R8a7
- 2.Sxd6#
- 2.f8Q#
- 2.f8R#
- 1...Rb8
- 2.f8Q#
- 2.f8R#
- 1...Bb6
- 2.f8Q#
- 2.f8R#
- 1...Bc7
- 2.f8Q#
- 2.f8R#
- 1...Bd8
- 2.Sxd6#
- 1...Se1
- 2.f8Q#
- 2.f8R#
- 1...Sg1
- 2.f8Q#
- 2.f8R#
- 1...Sd2
- 2.f8Q#
- 2.f8R#
- 1...Sfd4
- 2.f8Q#
- 2.f8R#
- 1...Sh4
- 2.f8Q#
- 2.f8R#
- 1...Sfe5
- 2.Sxd6#
- 1...Scd4
- 2.f8Q#
- 2.f8R#
- 1...Sce5
- 2.Sg3#
- 1...Sa7
- 2.f8Q#
- 2.f8R#
- 1...Se7
- 2.Sg3#
- 2.f8Q#
- 2.f8R#
- 1...Sb8
- 2.Se7#
- 2.f8Q#
- 2.f8R#
- 1...Sd8
- 2.Se7#
- 1...g4
- 2.f8Q#
- 2.f8R#
- threat
- 1.f7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 9
- Sets
- Q(a);N_PINS(E),P_PINS(I)::S(E),XP(h)
- Q(a);N_PINS(E),P_PINS(I),XP(B)::S(E),XP(h)
- Q(a);CHECK,OGATE,P_PINS(I),XS(E)::P(B),XQ(a)
- R(j);::S(I),XP(h)
- R(j);CHECK,OGATE,XS(I)::B(H),XR(j)
- B(c);::S(I),XP(h)
- S(b);N_PINS(E),P_PINS(I)::S(E),XP(h)
- S(g);N_PINS(E),P_PINS(I),SBLOCK::S(E)
- S(g);::S(I)
- Tries
- Try
- Q(A);CHECK,N_SPINS(E),P_SPINS(I)
- Vars
- S(b);SBLOCK,XQ(A)::S(E),XP(h)
- S(g);SBLOCK,XQ(A)::S(E)
- Refutation
- K(d);P-FLIGHT,XQ(A)
- Try
- Actual
- P(G);
- Threat
- P=Q
- Vars
- Q(a);CHECK,OGATE,P_PINS(I),XS(E)::P(B),XQ(a)
- R(j);CHECK,OGATE,XS(I)::B(H),XR(j)
- B(c);XR(D)::P=Q
- S(b);XQ(A)::P=Q
- S(g);XR(D)::P=Q
- Q(a);N_PINS(E),P_PINS(I)::S(E),XP(h)
- Q(a);N_PINS(E),P_PINS(I)::P=Q
- Q(a);::P=Q
- R(f);::P=Q
- R(j);::P=Q
- B(c);::P=Q
- B(c);::S(I),XP(h)
- S(b);::P=Q
- S(b);N_PINS(E),P_PINS(I)::S(E),XP(h)
- S(g);::P=Q
- S(g);N_PINS(E),P_PINS(I)::S(E)
- S(g);::S(I)
- P(e);::P=Q
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).