MESON Chess Problem Database
Problem Display
PID: 186194 (b2R4/2K3p1/7p/n1QpNp2/r3kP2/r7/2q1P1N1/nB2b3 w - - 0 1)
Stoyanov, Kiril N
Chess, 1959
#2
8 + 12
SOLUTION
- SOUND
- Sets
- 1...Qd3
- 2.Qe3#
- 1...Rf3
- 2.exf3#
- 1...Bc3
- 2.Qe3#
- 1...S1b3
- 2.Bxc2#
- 1...Sc6
- 2.Qxd5#
- 1...Qd3
- Tries
- 1.Sc4?
- threat
- 2.Sd6#
- 2.Re8#
- 1...Rxc4
- 2.Re8#
- 1...dxc4
- 2.Rd4#
- 2.Re8#
- 2.Qd4#
- 2.Qe7#
- 2.Qe5#
- 1...Bc3
- 2.Sd6#
- 2.Qe3#
- 1...Bh4
- 2.Sd2#
- 2.Sd6#
- 1...Bc6
- 2.Sd6#
- 1...Sc6
- 2.Sd6#
- 2.Qxd5#
- 1...Sb7
- 2.Re8#
- 2.Qxd5#
- 1...Sxc4!
- threat
- 1.Sc6?
- threat
- 2.Re8#
- 2.Qe7#
- 2.Qxd5#
- 1...Sxc6
- 2.Qxd5#
- 1...Rd3
- 2.Re8#
- 2.Qe7#
- 1...Rd4
- 2.Re8#
- 2.Qxd4#
- 2.Qe7#
- 1...Bc3
- 2.Qe3#
- 2.Qxd5#
- 1...Bb4
- 2.Re8#
- 2.Qd4#
- 2.Qxd5#
- 1...Bh4
- 2.Qxd5#
- 1...Sc4
- 2.Qd4#
- 2.Qxd5#
- 1...d4
- 2.Re8#
- 2.Qe7#
- 2.Qd5#
- 2.Qe5#
- 1...Bxc6!
- threat
- 1.Sf7?
- threat
- 2.Sd6#
- 2.Re8#
- 1...Bh4
- 2.Sd6#
- 1...Bc3
- 2.Sd6#
- 2.Qe3#
- 1...Bc6
- 2.Sd6#
- 1...Sc6
- 2.Sd6#
- 2.Qxd5#
- 1...Sb7
- 2.Re8#
- 1...Sc4!
- threat
- 1.Bxc2+?
- 1...Rd3
- 2.Bxd3#
- 2.Qe3#
- 2.exd3#
- 1...Sxc2!
- 1...Rd3
- 1.Re8?
- threat
- 2.Sd3#
- 2.Sf3#
- 2.Sc4#
- 2.Sg4#
- 2.Sc6#
- 2.Sg6#
- 2.Sd7#
- 2.Sf7#
- 1...Qd3
- 2.Sxd3#
- 2.Sf3#
- 2.Sc4#
- 2.Sg4#
- 2.Sc6#
- 2.Sg6#
- 2.Sd7#
- 2.Sf7#
- 2.Qe3#
- 1...Rd3
- 2.Sxd3#
- 2.Sf3#
- 2.Sc4#
- 2.Sg4#
- 2.Sc6#
- 2.Sg6#
- 2.Sd7#
- 2.Sf7#
- 1...Rf3
- 2.Sd3#
- 2.Sxf3#
- 2.Sc4#
- 2.Sg4#
- 2.Sc6#
- 2.Sg6#
- 2.Sd7#
- 2.Sf7#
- 2.exf3#
- 1...Rc4
- 2.Sd3#
- 2.Sf3#
- 2.Sxc4#
- 2.Sg4#
- 2.Sc6#
- 2.Sg6#
- 2.Sd7#
- 2.Sf7#
- 1...Bc3
- 2.Qe3#
- 1...Bc6
- 2.Sxc6#
- 2.Sd7#
- 1...Sc4
- 2.Sxc4#
- 1...Sc6
- 2.Sxc6#
- 1...g6
- 2.Sd3#
- 2.Sf3#
- 2.Sc4#
- 2.Sg4#
- 2.Sc6#
- 2.Sxg6#
- 2.Sd7#
- 2.Sf7#
- 1...Bh4!
- threat
- 1.Sc4?
- Keys
- 1.Sf3!
- threat
- 2.Re8#
- 1...Bc3
- 2.Qe3#
- 1...Bh4
- 2.Sd2#
- 1...Bc6
- 2.Qe7#
- 1...Sc4
- 2.Qd4#
- 1...Sc6
- 2.Qxd5#
- threat
- 1.Sf3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 3
- Sets
- Q(c);N_PINQ(E)::QAR1(E)
- R(d);OGATE::P(B),XR(d)
- B(b);N_PINQ(E)::QAR1(E)
- S(a);N_GUARD,S_CUTR(d)::B(A),XQ(c)
- S(g);N_PINQ(E)::QAB1(E),XP(h)
- Tries
- Try
- S(F);N_SPINQ(E)
- Threat
- DUALS(2)
- Vars
- R(e);P_PINQ(E),XS(F)::R(H)
- B(l);::S(F)
- Refutation
- S(g);XS(F)
- Try
- S(F);N_SPINQ(E)
- Threat
- DUALS(3)
- Vars
- S(g);XS(F)::QAB1(E),XP(h)
- B(b);::QAB1(E),XP(h)
- Refutation
- B(l);XS(F)
- Try
- S(F);
- Threat
- DUALS(2)
- Vars
- B(b);::S(F)
- B(l);N_PINQ(E)::S(F)
- S(g);::R(H)
- Refutation
- S(g);N_PINQ(E)
- Try
- B(A);CHECK,N_SPINQ(E),XQ(c)
- Refutation
- S(a);XB(A)
- Try
- R(H);
- Threat
- DUALS(8)
- Vars
- B(b);N_PINQ(E)::QAR1(E)
- S(g);N_PINQ(E)::R(H)+S(F),XS(g)
- Refutation
- B(b);
- Try
- Actual
- S(F);
- Threat
- R(H)
- Vars
- B(b);N_PINQ(E)::QAR1(E)
- B(b);N_GUARD::S(F)
- B(l);N_PINQ(E)::QAR(E)
- S(g);N_PINQ(E)::QAR1(E)
- S(g);N_PINQ(E)::QAB1(E),XP(h)
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).