MESON Chess Problem Database
Problem Display
PID: 71278 (2K1R3/P6N/1b2N2Q/1BPkp3/1p1B2n1/5P2/r7/8 w - - 0 1)
Shanshin, Valery Yurevich
Zhuravlev, Andrey Nikolaevich
The Problemist, 2006
#2
10 + 6
SOLUTION
- SOUND
- Sets
- 1...Rb2
- 2.a8Q#
- 2.a8B#
- 1...Rc2
- 2.a8Q#
- 2.a8B#
- 1...Rd2
- 2.a8Q#
- 2.a8B#
- 1...Re2
- 2.a8Q#
- 2.a8B#
- 1...Rf2
- 2.a8Q#
- 2.a8B#
- 1...Rg2
- 2.a8Q#
- 2.a8B#
- 1...Rh2
- 2.a8Q#
- 2.a8B#
- 1...Ba5
- 2.a8Q#
- 2.a8B#
- 1...Bxa7
- 2.Rd8#
- 1...Bd8
- 2.Rxd8#
- 1...Sf2
- 2.Sf6#
- 1...Sh2
- 2.Sf6#
- 1...Se3
- 2.Sf6#
- 1...Sf6
- 2.Sxf6#
- 1...Sxh6
- 2.Sf6#
- 1...Rb2
- Tries
- 1.Sf4+?
- 1...exf4
- 2.Qd6#
- 1...Kxd4!
- 1...exf4
- 1.Bb2?
- threat
- 2.Qd2#
- 1...Rxb2
- 2.a8Q#
- 2.a8B#
- 1...Bxc5
- 2.Sc7#
- 1...Sxh6
- 2.Sf6#
- 1...Sf2
- 2.Sf6#
- 1...Se3
- 2.Sf6#
- 1...Ra3!
- threat
- 1.Bc4+?
- 1...Kc6
- 2.Sd8#
- 1...Kxc4!
- 1...Kc6
- 1.Qd2?
- threat
- 2.Bb2#
- 1...Rxd2
- 2.a8Q#
- 2.a8B#
- 1...exd4
- 2.Qxd4#
- 1...Ra3
- 2.Bc3#
- 1...Rb2
- 2.Bxb2#
- 2.a8Q#
- 2.a8B#
- 1...Rc2
- 2.a8Q#
- 2.a8B#
- 1...Sf2
- 2.Sf6#
- 1...Bxc5!
- threat
- 1.Qe3?
- threat
- 2.Qb3#
- 2.Qe4#
- 1...Sxe3
- 2.Sf6#
- 1...exd4
- 2.Qxd4#
- 2.Qe4#
- 1...Ra3
- 2.Qe4#
- 1...Rb2
- 2.Qe4#
- 2.a8Q#
- 2.a8B#
- 1...Rc2
- 2.Qe4#
- 2.a8Q#
- 2.a8B#
- 1...Re2
- 2.Qb3#
- 2.a8Q#
- 2.a8B#
- 1...Sf2
- 2.Sf6#
- 2.Qb3#
- 2.Qxe5#
- 1...Sf6
- 2.Sxf6#
- 2.Qb3#
- 2.Qxe5#
- 1...b3
- 2.Qxb3#
- 2.Qe4#
- 1...e4
- 2.Sf4#
- 2.Qb3#
- 2.Qxe4#
- 2.fxe4#
- 1...Bxc5!
- threat
- 1.Qf8?
- threat
- 2.Qd6#
- 1...Bxc5
- 2.Qxc5#
- 1...Bc7!
- threat
- 1.Qg6?
- threat
- 2.Qe4#
- 1...Re2
- 2.a8Q#
- 2.a8B#
- 1...Sf2
- 2.Sf6#
- 1...Sf6
- 2.Sxf6#
- 1...e4
- 2.Qxe4#
- 2.fxe4#
- 1...Bxc5!
- threat
- 1.Sf4+?
- Keys
- 1.Qc1!
- threat
- 2.Qc4#
- 1...Bxc5
- 2.Qxc5#
- 1...exd4
- 2.Sf4#
- 1...Rc2
- 2.a8Q#
- 2.a8B#
- 1...Se3
- 2.Sf6#
- threat
- 1.Qc1!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 6
- Sets
- R(a);N_GUARD::P=Q
- R(a);N_GUARD,P_PINP(D)::P=Q
- B(f);S_CUTR(a)::P=Q
- B(f);N_GUARD,XP(G)::R(J)
- B(f);N_GUARD::R(J),XB(f)
- S(c);N_GUARD::S(H)
- S(c);N_GUARD::S(H),XS(c)
- S(c);N_GUARD,XQ(F)::S(H)
- Tries
- Try
- S(E);CHECK
- Vars
- P(e);XS(E)::QAR1(F)
- Refutation
- K(d);P-FLIGHT,XB(B)
- Try
- B(B);
- Threat
- QAR(F)
- Vars
- R(a);N_GUARD,XB(B)::P=Q
- B(f);N_GUARD,SBLOCK,XP(D)::S(E)
- S(c);N_GUARD,XQ(F)::S(H)
- S(c);N_GUARD::S(H)
- Refutation
- R(a);
- Try
- B(C);CHECK
- Vars
- K(d);S_FLIGHT::QAR(F)+S(E),DCHECK
- Refutation
- K(d);S_FLIGHT,XB(C)
- Try
- Q(F);
- Threat
- QAR(F)+B(B)
- Vars
- R(a);N_GUARD,XQ(F)::P=Q
- P(e);OGATE,P_SPINP(e),XB(B)::QAR1(F),XP(e)
- R(a);N_GUARD::QAR(F)+B(B)
- R(a);N_GUARD,P_PINP(D)::P=Q
- S(c);N_GUARD::S(H)
- Refutation
- B(f);XP(D)
- Try
- Q(F);
- Threat
- DUALS(2)
- Vars
- S(c);N_GUARD,XQ(F)::S(H)
- R(a);::QAB1(F)
- Refutation
- B(f);XP(D)
- Try
- Q(F);
- Threat
- QAR1(F)
- Vars
- B(f);OGATE,XP(D)::QAR1(F),XB(f)
- Refutation
- B(f);
- Try
- Q(F);
- Threat
- QAB1(F)
- Vars
- R(a);N_GUARD::P=Q
- S(c);N_GUARD::S(H)
- S(c);N_GUARD::S(H),XS(c)
- Refutation
- B(f);XP(D)
- Try
- Actual
- Q(F);
- Threat
- QAB1(F)
- Vars
- B(f);OGATE,XP(D)::QAR1(F),XB(f)
- P(e);N_GUARD,SBLOCK,XB(B)::S(E)
- R(a);N_GUARD,P_PINP(D)::P=Q
- S(c);N_GUARD::S(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).