MESON Chess Problem Database
Problem Display
PID: 264886 (8/qpbK2p1/6p1/3p4/p2nk1N1/7B/5R2/2BQ3N w - - 0 1)
Shanshin, Valery Yurevich
Coello-75 JT (Problemas), 2017
#2
7 + 9
SOLUTION
- SOUND
- Sets
- 1...Bg3
- 2.Sxg3#
- 1...Bf4
- 2.Rxf4#
- 1...Ba5
- 2.Sg3#
- 2.Rf4#
- 1...Bb6
- 2.Sg3#
- 2.Rf4#
- 1...Bd8
- 2.Sg3#
- 2.Rf4#
- 1...Sc2
- 2.Bg2#
- 1...Se2
- 2.Bg2#
- 1...Sb3
- 2.Bg2#
- 1...Sb5
- 2.Bg2#
- 1...Sf5
- 2.Bg2#
- 1...Sc6
- 2.Bg2#
- 1...Se6
- 2.Bg2#
- 1...Bg3
- Tries
- 1.Bf1?
- threat
- 2.Bd3#
- 2.Qd3#
- 1...Sf3
- 2.Qd3#
- 1...Sc2
- 2.Bg2#
- 2.Qd3#
- 1...Se2
- 2.Bg2#
- 1...Sb3
- 2.Bg2#
- 2.Qd3#
- 1...Sb5
- 2.Bg2#
- 2.Qd3#
- 1...Sf5
- 2.Bg2#
- 2.Qd3#
- 1...Sc6
- 2.Bg2#
- 2.Qd3#
- 1...Se6
- 2.Bg2#
- 2.Qd3#
- 1...Qa6!
- threat
- 1.Re2+?
- 1...Kf3
- 2.Qf1#
- 2.Qd3#
- 1...Kf5
- 2.Qd3#
- 1...Sxe2!
- 1...Kf3
- 1.Rf3?
- threat
- 2.Shf2#
- 2.Qd3#
- 1...Bf4
- 2.Rxf4#
- 2.Qd3#
- 1...Se2
- 2.Qd3#
- 1...Qa6
- 2.Shf2#
- 1...Bg3
- 2.Sxg3#
- 2.Qd3#
- 1...Sc2
- 2.Qd3#
- 1...Sb3
- 2.Qd3#
- 1...Sb5
- 2.Qd3#
- 1...Sf5
- 2.Qd3#
- 1...Sc6
- 2.Qd3#
- 1...Se6
- 2.Qd3#
- 1...Sxf3!
- threat
- 1.Rf7?
- threat
- 2.Shf2#
- 1...Bg3
- 2.Sxg3#
- 1...Sc2
- 2.Bg2#
- 1...Se2
- 2.Bg2#
- 1...Sb3
- 2.Bg2#
- 1...Sb5
- 2.Bg2#
- 1...Sf5
- 2.Bg2#
- 1...Sc6
- 2.Bg2#
- 1...Se6
- 2.Bg2#
- 1...Sf3!
- threat
- 1.Rf8?
- threat
- 2.Shf2#
- 1...Bg3
- 2.Sxg3#
- 1...Sc2
- 2.Bg2#
- 1...Se2
- 2.Bg2#
- 1...Sb3
- 2.Bg2#
- 1...Sb5
- 2.Bg2#
- 1...Sf5
- 2.Bg2#
- 1...Sc6
- 2.Bg2#
- 1...Se6
- 2.Bg2#
- 1...Sf3!
- threat
- 1.Qd2?
- threat
- 2.Qe3#
- 1...Bf4
- 2.Rxf4#
- 1...Sc2
- 2.Bg2#
- 1...Se2
- 2.Bg2#
- 1...Sb3
- 2.Bg2#
- 1...Sb5
- 2.Bg2#
- 1...Sf5
- 2.Bg2#
- 1...Sc6
- 2.Bg2#
- 1...Se6
- 2.Bg2#
- 1...Sf3!
- threat
- 1.Bf1?
- Keys
- 1.Rf5!
- threat
- 2.Sgf2#
- 1...Kxf5
- 2.Qd3#
- 1...Sxf5
- 2.Bg2#
- 1...gxf5
- 2.Shf2#
- 1...Bg3
- 2.Sxg3#
- 1...Sc2
- 2.Qxd5#
- 1...Se2
- 2.Qxd5#
- 1...Sb3
- 2.Qxd5#
- 1...Sf3
- 2.Qxd5#
- 1...Sb5
- 2.Qxd5#
- 1...Sc6
- 2.Qxd5#
- 1...Se6
- 2.Qxd5#
- threat
- 1.Rf5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 6
- ADDED MATES = 3
- REMOVED MATES = 1
- Sets
- B(h);N_GUARD::S(C),XB(h)
- B(h);N_GUARD::R1(D),XB(h)
- S(b);N_GUARD::B(E)
- Tries
- Try
- B(E);
- Threat
- DUALS(2)
- Vars
- S(b);::QAB1(B)
- S(b);N_GUARD::B(E)
- Refutation
- Q(f);
- Try
- R(D);CHECK
- Vars
- K(c);N_GUARD,S_FLIGHT::QAB(B)
- Refutation
- S(b);XR(D)
- Try
- R(D);
- Threat
- DUALS(2)
- Vars
- S(b);::QAB1(B)
- Q(f);::S(C)
- Refutation
- S(b);XR(D)
- Try
- R(D);
- Threat
- S(C)
- Vars
- B(h);N_GUARD::S(C),XB(h)
- S(b);N_GUARD::B(E)
- Refutation
- S(b);
- Try
- R(D);
- Threat
- S(C)
- Vars
- B(h);N_GUARD::S(C),XB(h)
- S(b);N_GUARD::B(E)
- Refutation
- S(b);
- Try
- Q(B);
- Threat
- QAR1(B)
- Vars
- B(h);N_GUARD::R1(D),XB(h)
- S(b);N_GUARD::B(E)
- Refutation
- S(b);
- Try
- Actual
- R(D);
- Threat
- S(F)
- Vars
- K(c);N_GUARD,S_FLIGHT,XR(D)::QAB(B)
- S(b);N_GUARD,SBLOCK,XR(D)::B(E)
- P(e);SBLOCK,XR(D)::S(C)
- B(h);N_GUARD::S(C),XB(h)
- S(b);OGATE::QAB1(B),XP(d)
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).