MESON Chess Problem Database
Problem Display
PID: 268981 (n2B4/2pR1Pp1/2p1p3/4kNP1/4ppRN/2K4P/2n1Q3/7b w - - 0 1)
Belchikov, Nikolai Ivanovich
Frigin, Valery Fedorovich
20/27 Place, 09. WCCT, 2012-2013
#2
10 + 10
SOLUTION
- SOUND
- Sets
- 1...Sb6
- 2.Bxc7#
- 1...f3
- 2.Rxe4#
- 2.Qh2#
- 2.Qxe4#
- 1...g6
- 2.Bf6#
- 1...Sb6
- Tries
- 1.Se3?
- threat
- 2.Sc4#
- 2.Sg6#
- 1...fxe3
- 2.Qh2#
- 1...Sa3
- 2.Sg6#
- 1...Sb6
- 2.Sg6#
- 2.Bxc7#
- 1...g6
- 2.Sc4#
- 2.Sxg6#
- 2.Bf6#
- 1...Sxe3!
- threat
- 1.Sg3?
- threat
- 2.Sg6#
- 1...g6
- 2.Sxg6#
- 2.Bf6#
- 1...fxg3!
- threat
- 1.Sh6?
- threat
- 2.Sg6#
- 1...gxh6
- 2.Bf6#
- 1...g6
- 2.Sxg6#
- 2.Bf6#
- 1...e3!
- threat
- 1.Se7?
- threat
- 2.Shg6#
- 2.Sxc6#
- 2.Seg6#
- 1...Sb4
- 2.Shg6#
- 2.Seg6#
- 1...Sd4
- 2.Shg6#
- 2.Seg6#
- 1...c5
- 2.Shg6#
- 2.Sc6#
- 2.Seg6#
- 1...g6
- 2.Shxg6#
- 2.Sxc6#
- 2.Sexg6#
- 1...e3!
- threat
- 1.Rxf4?
- threat
- 2.Sg6#
- 1...Kxf4
- 2.Qh2#
- 1...g6
- 2.Sxg6#
- 1...exf5!
- threat
- 1.Qb5+?
- 1...c5
- 2.Qxc5#
- 1...cxb5!
- 1...c5
- 1.Qd2?
- threat
- 2.Qxf4#
- 1...exf5
- 2.Re7#
- 1...Se3
- 2.Qd4#
- 1...f3
- 2.Qf4#
- 2.Qh2#
- 1...e3!
- threat
- 1.Qf2?
- threat
- 2.Qc5#
- 2.Qxf4#
- 1...e3
- 2.Qxf4#
- 1...Bf3
- 2.Qc5#
- 1...Se3
- 2.Qxf4#
- 1...Sb4
- 2.Qd4#
- 2.Qxf4#
- 1...Sd4
- 2.Qxd4#
- 2.Qxf4#
- 1...Sb6
- 2.Bxc7#
- 2.Qxf4#
- 1...f3
- 2.Qg3#
- 2.Qc5#
- 2.Qh2#
- 1...c5
- 2.Qxc5#
- 2.Qxf4#
- 1...exf5!
- threat
- 1.f8Q?
- threat
- 2.Sg6#
- 2.Qc5#
- 2.Qxg7#
- 1...exf5
- 2.Qe7#
- 2.Qxf5#
- 2.Qe8#
- 1...Se3
- 2.Sg6#
- 2.Qxg7#
- 1...Sb4
- 2.Sg6#
- 2.Qxg7#
- 1...Sb6
- 2.Sg6#
- 2.Bxc7#
- 2.Qxg7#
- 1...c5
- 2.Sg6#
- 2.Qxc5#
- 2.Qxg7#
- 1...g6
- 2.Sxg6#
- 2.Bf6#
- 2.Qc5#
- 2.Qg7#
- 2.Qf6#
- 2.Qh8#
- 1...e3!
- threat
- 1.f8S?
- threat
- 2.Sfg6#
- 1...exf5
- 2.Shg6#
- 1...g6
- 2.Sfxg6#
- 2.Bf6#
- 1...e3!
- threat
- 1.f8R?
- threat
- 2.Sg6#
- 1...exf5
- 2.Re8#
- 1...g6
- 2.Sxg6#
- 2.Bf6#
- 1...e3!
- threat
- 1.Se3?
- Keys
- 1.Qc4!
- threat
- 2.Qc5#
- 1...exf5
- 2.Sg6#
- 1...Se3
- 2.Qd4#
- 1...Sb4
- 2.Qd4#
- 1...Sb6
- 2.Bxc7#
- 1...e3
- 2.Qxf4#
- 1...c5
- 2.Qxc5#
- threat
- 1.Qc4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 1
- Sets
- S(j);N_GUARD::B(J),XP(h)
- P(i);N_GUARD::B(J)
- Tries
- Try
- S(F);N_PINP(c)
- Threat
- DUALS(2)
- Vars
- P(d);OGATEB,XS(F)::QAB(A)
- S(b);::S(E)
- Refutation
- S(b);XS(F)
- Try
- S(F);
- Threat
- S(E)
- Refutation
- P(d);XS(F)
- Try
- S(F);
- Threat
- S(E)
- Vars
- P(i);N_GUARD,XS(F)::B(J)
- Refutation
- P(c);
- Try
- S(F);
- Threat
- DUALS(3)
- Refutation
- P(c);
- Try
- R(D);XP(d)
- Threat
- S(E)
- Vars
- K(e);N_SPINP(c),OGATEB,S_FLIGHT,XR(D)::QAB(A)
- P(i);::S(E),XP(i)
- Refutation
- P(g);XS(F)
- Try
- Q(A);CHECK,N_PINP(c)
- Vars
- P(f);P_SPINP(f)::QAR2(A),XP(f)
- Refutation
- P(f);XQ(A)
- Try
- Q(A);N_PINP(c)
- Threat
- QAB1(A),XP(d)
- Vars
- P(g);OGATEB,XS(F)::R(H)
- S(b);N_GUARD::QAB1(A)
- Refutation
- P(c);
- Try
- Q(A);N_PINP(c)
- Threat
- DUALS(2)
- Vars
- P(c);::QAB1(A),XP(d)
- B(a);::QAR2(A)
- S(b);::QAB1(A),XP(d)
- Refutation
- P(g);XS(F)
- Try
- P(I);
- Threat
- DUALS(3)
- Refutation
- P(c);
- Try
- P(I);
- Threat
- S(I)
- Vars
- P(g);SBLOCK,XS(F)::S(E)
- Refutation
- P(c);
- Try
- P(I);
- Threat
- S(E)
- Vars
- P(g);OGATEB,XS(F)::R(I)
- Refutation
- P(c);
- Try
- Actual
- Q(A);N_PINP(c)
- Threat
- QAR2(A)
- Vars
- P(g);SBLOCK,XS(F)::S(E)
- S(b);N_GUARD::QAB1(A)
- S(j);N_GUARD::B(J),XP(h)
- P(c);OGATE::QAB1(A),XP(d)
- P(f);::QAR2(A),XP(f)
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).