MESON Chess Problem Database
Problem Display
PID: 134066 (1BB2R2/R1P3pN/3k2rN/KP3p2/n1P1b2b/2p1Q3/2q5/8 w - - 0 1)
Chepizhni, Viktor Ivanovich
Shanshin, Valery Yurevich
1st Prize, Shakhmatnaya Poeziya, 2005
#2
11 + 9
| 56 | The Problemist | 2009 |
| 23 | Die Schwalbe | 2011 |
SOLUTION
- SOUND
- Sets
- 1...Ke5
- 2.Sf7#
- 1...Ke7
- 2.Sxf5#
- 1...Bh1
- 2.Sf7#
- 1...Bg2
- 2.Sf7#
- 1...Bd3
- 2.Sf7#
- 1...Bf3
- 2.Sf7#
- 1...Bc6
- 2.Sf7#
- 1...Bb7
- 2.Sf7#
- 1...Ba8
- 2.Sf7#
- 1...Be7
- 2.Sf7#
- 1...Bd8
- 2.cxd8Q#
- 2.cxd8S#
- 2.cxd8B#
- 2.cxd8R#
- 1...Ke5
- Tries
- 1.Bxf5?
- threat
- 2.c8Q#
- 2.c8S#
- 2.c8B#
- 2.c8R#
- 1...Ke7
- 2.c8Q#
- 2.c8S#
- 2.c8B#
- 2.c8R#
- 1...Rxh6
- 2.c8Q#
- 2.c8S#
- 2.c8B#
- 2.c8R#
- 1...Bxf5
- 2.c8Q#
- 2.c8S#
- 2.c8B#
- 2.c8R#
- 1...gxh6
- 2.c8Q#
- 2.c8S#
- 2.c8B#
- 2.c8R#
- 1...Re6
- 2.c8Q#
- 2.c8S#
- 2.c8B#
- 2.c8R#
- 1...Qb1
- 2.c8Q#
- 2.c8S#
- 2.c8B#
- 2.c8R#
- 1...Qd1
- 2.c8Q#
- 2.c8S#
- 2.c8B#
- 2.c8R#
- 1...Qb3
- 2.c8Q#
- 2.c8S#
- 2.c8B#
- 2.c8R#
- 1...Qd3
- 2.c8Q#
- 2.c8S#
- 2.c8B#
- 2.c8R#
- 1...Qc1
- 2.c8Q#
- 2.c8S#
- 2.c8B#
- 2.c8R#
- 1...Qa2
- 2.c8Q#
- 2.c8S#
- 2.c8B#
- 2.c8R#
- 1...Qb2
- 2.c8Q#
- 2.c8S#
- 2.c8B#
- 2.c8R#
- 1...Qd2
- 2.c8Q#
- 2.c8S#
- 2.c8B#
- 2.c8R#
- 1...Qe2
- 2.c8Q#
- 2.c8S#
- 2.c8B#
- 2.c8R#
- 1...Qf2
- 2.c8Q#
- 2.c8S#
- 2.c8B#
- 2.c8R#
- 1...Qg2
- 2.c8Q#
- 2.c8S#
- 2.c8B#
- 2.c8R#
- 1...Qh2
- 2.c8Q#
- 2.c8S#
- 2.c8B#
- 2.c8R#
- 1...Rg1
- 2.c8Q#
- 2.c8S#
- 2.c8B#
- 2.c8R#
- 1...Rg2
- 2.c8Q#
- 2.c8S#
- 2.c8B#
- 2.c8R#
- 1...Rg3
- 2.c8Q#
- 2.c8S#
- 2.c8B#
- 2.c8R#
- 1...Rg4
- 2.c8Q#
- 2.c8S#
- 2.c8B#
- 2.c8R#
- 1...Rg5
- 2.c8Q#
- 2.c8S#
- 2.c8B#
- 2.c8R#
- 1...Rf6
- 2.c8Q#
- 2.c8S#
- 2.c8B#
- 2.c8R#
- 1...Bh1
- 2.Sf7#
- 2.c8Q#
- 2.c8S#
- 2.c8B#
- 2.c8R#
- 1...Bg2
- 2.Sf7#
- 2.c8Q#
- 2.c8S#
- 2.c8B#
- 2.c8R#
- 1...Bd3
- 2.Sf7#
- 2.c8Q#
- 2.c8S#
- 2.c8B#
- 2.c8R#
- 1...Bf3
- 2.Sf7#
- 2.c8Q#
- 2.c8S#
- 2.c8B#
- 2.c8R#
- 1...Bd5
- 2.c8Q#
- 2.c8S#
- 2.c8B#
- 2.c8R#
- 1...Bc6
- 2.Sf7#
- 2.c8Q#
- 2.c8S#
- 2.c8B#
- 2.c8R#
- 1...Bb7
- 2.Sf7#
- 2.c8Q#
- 2.c8S#
- 2.c8B#
- 2.c8R#
- 1...Ba8
- 2.Sf7#
- 2.c8Q#
- 2.c8S#
- 2.c8B#
- 2.c8R#
- 1...Be1
- 2.c8Q#
- 2.c8S#
- 2.c8B#
- 2.c8R#
- 1...Bf2
- 2.c8Q#
- 2.c8S#
- 2.c8B#
- 2.c8R#
- 1...Bg3
- 2.c8Q#
- 2.c8S#
- 2.c8B#
- 2.c8R#
- 1...Bg5
- 2.c8Q#
- 2.c8S#
- 2.c8B#
- 2.c8R#
- 1...Bf6
- 2.c8Q#
- 2.c8S#
- 2.c8B#
- 2.c8R#
- 1...Be7
- 2.Sf7#
- 2.c8Q#
- 2.c8S#
- 2.c8B#
- 2.c8R#
- 1...Bd8
- 2.cxd8Q#
- 2.cxd8S#
- 2.cxd8B#
- 2.cxd8R#
- 1...Sb2
- 2.c8Q#
- 2.c8S#
- 2.c8B#
- 2.c8R#
- 1...Sc5
- 2.c8Q#
- 2.c8S#
- 2.c8B#
- 2.c8R#
- 1...Sb6
- 2.c8Q#
- 2.c8S#
- 2.c8B#
- 2.c8R#
- 1...Ke5!
- threat
- 1.Ba6?
- threat
- 2.c8Q#
- 2.c8B#
- 1...Ke6
- 2.c8Q#
- 2.c8B#
- 1...Kd7
- 2.c8Q#
- 2.c8B#
- 1...Ke7
- 2.c8Q#
- 2.c8B#
- 1...Rxh6
- 2.c8Q#
- 2.c8B#
- 1...gxh6
- 2.c8Q#
- 2.c8B#
- 1...Qb1
- 2.c8Q#
- 2.c8B#
- 1...Qd1
- 2.c8Q#
- 2.c8B#
- 1...Qb3
- 2.c8Q#
- 2.c8B#
- 1...Qd3
- 2.c8Q#
- 2.c8B#
- 1...Qc1
- 2.c8Q#
- 2.c8B#
- 1...Qa2
- 2.c8Q#
- 2.c8B#
- 1...Qb2
- 2.c8Q#
- 2.c8B#
- 1...Qd2
- 2.c8Q#
- 2.c8B#
- 1...Qe2
- 2.c8Q#
- 2.c8B#
- 1...Qf2
- 2.c8Q#
- 2.c8B#
- 1...Qg2
- 2.c8Q#
- 2.c8B#
- 1...Qh2
- 2.c8Q#
- 2.c8B#
- 1...Rg1
- 2.c8Q#
- 2.c8B#
- 1...Rg2
- 2.c8Q#
- 2.c8B#
- 1...Rg3
- 2.c8Q#
- 2.c8B#
- 1...Rg4
- 2.c8Q#
- 2.c8B#
- 1...Rg5
- 2.c8Q#
- 2.c8B#
- 1...Re6
- 2.c8Q#
- 2.c8S#
- 2.c8B#
- 2.c8R#
- 1...Rf6
- 2.c8Q#
- 2.c8B#
- 1...Bh1
- 2.c8Q#
- 2.c8S#
- 2.c8B#
- 2.c8R#
- 1...Bg2
- 2.c8Q#
- 2.c8S#
- 2.c8B#
- 2.c8R#
- 1...Bd3
- 2.c8Q#
- 2.c8S#
- 2.c8B#
- 2.c8R#
- 1...Bf3
- 2.c8Q#
- 2.c8S#
- 2.c8B#
- 2.c8R#
- 1...Bd5
- 2.c8Q#
- 2.c8S#
- 2.c8B#
- 2.c8R#
- 1...Bc6
- 2.c8Q#
- 2.c8S#
- 2.c8B#
- 2.c8R#
- 1...Bb7
- 2.c8Q#
- 2.c8B#
- 1...Ba8
- 2.c8Q#
- 2.c8S#
- 2.c8B#
- 2.c8R#
- 1...Be1
- 2.c8Q#
- 2.c8B#
- 1...Bf2
- 2.c8Q#
- 2.c8B#
- 1...Bg3
- 2.c8Q#
- 2.c8B#
- 1...Bg5
- 2.c8Q#
- 2.c8B#
- 1...Bf6
- 2.c8Q#
- 2.c8B#
- 1...Be7
- 2.c8Q#
- 2.c8B#
- 1...Bd8
- 2.cxd8S#
- 1...Sb2
- 2.c8Q#
- 2.c8B#
- 1...Sc5
- 2.c8Q#
- 2.c8B#
- 1...Sb6
- 2.c8Q#
- 2.c8B#
- 1...f4
- 2.c8Q#
- 2.c8B#
- 1...Ke5!
- threat
- 1.Be6?
- threat
- 2.c8Q#
- 2.c8B#
- 1...Ke5
- 2.c8Q#
- 2.c8B#
- 1...Kxe6
- 2.c8Q#
- 2.c8B#
- 1...Rxe6
- 2.c8Q#
- 2.c8S#
- 2.c8B#
- 2.c8R#
- 1...Rxh6
- 2.c8Q#
- 2.c8B#
- 1...gxh6
- 2.c8Q#
- 2.c8B#
- 1...Qb1
- 2.c8Q#
- 2.c8B#
- 1...Qd1
- 2.c8Q#
- 2.c8B#
- 1...Qb3
- 2.c8Q#
- 2.c8B#
- 1...Qd3
- 2.c8Q#
- 2.c8B#
- 1...Qc1
- 2.c8Q#
- 2.c8B#
- 1...Qa2
- 2.c8Q#
- 2.c8B#
- 1...Qb2
- 2.c8Q#
- 2.c8B#
- 1...Qd2
- 2.c8Q#
- 2.c8B#
- 1...Qe2
- 2.c8Q#
- 2.c8B#
- 1...Qf2
- 2.c8Q#
- 2.c8B#
- 1...Qg2
- 2.c8Q#
- 2.c8B#
- 1...Qh2
- 2.c8Q#
- 2.c8B#
- 1...Rg1
- 2.c8Q#
- 2.c8B#
- 1...Rg2
- 2.c8Q#
- 2.c8B#
- 1...Rg3
- 2.c8Q#
- 2.c8B#
- 1...Rg4
- 2.c8Q#
- 2.c8B#
- 1...Rg5
- 2.c8Q#
- 2.c8B#
- 1...Rf6
- 2.c8Q#
- 2.c8B#
- 1...Bh1
- 2.c8Q#
- 2.c8S#
- 2.c8B#
- 2.c8R#
- 1...Bg2
- 2.c8Q#
- 2.c8S#
- 2.c8B#
- 2.c8R#
- 1...Bd3
- 2.c8Q#
- 2.c8S#
- 2.c8B#
- 2.c8R#
- 1...Bf3
- 2.c8Q#
- 2.c8S#
- 2.c8B#
- 2.c8R#
- 1...Bd5
- 2.c8Q#
- 2.c8S#
- 2.c8B#
- 2.c8R#
- 1...Bc6
- 2.c8Q#
- 2.c8S#
- 2.c8B#
- 2.c8R#
- 1...Ba8
- 2.c8Q#
- 2.c8S#
- 2.c8B#
- 2.c8R#
- 1...Be1
- 2.c8Q#
- 2.c8B#
- 1...Bf2
- 2.c8Q#
- 2.c8B#
- 1...Bg3
- 2.c8Q#
- 2.c8B#
- 1...Bg5
- 2.c8Q#
- 2.c8B#
- 1...Bf6
- 2.c8Q#
- 2.c8B#
- 1...Be7
- 2.c8Q#
- 2.c8B#
- 1...Bd8
- 2.cxd8S#
- 1...Sb2
- 2.c8Q#
- 2.c8B#
- 1...Sc5
- 2.c8Q#
- 2.c8B#
- 1...Sb6
- 2.c8Q#
- 2.c8B#
- 1...f4
- 2.c8Q#
- 2.c8B#
- 1...Ke7!
- threat
- 1.Ra6+?
- 1...Ke5
- 2.Sf7#
- 2.Rxf5#
- 1...Ke7
- 2.Sxf5#
- 2.Sg8#
- 1...Bc6
- 2.Sf7#
- 2.Rxc6#
- 1...Sb6!
- 1...Ke5
- 1.Rd8+?
- 1...Ke5
- 2.Sf7#
- 2.Rd5#
- 1...Bxd8
- 2.cxd8Q#
- 2.cxd8S#
- 2.cxd8B#
- 2.cxd8R#
- 1...Ke7!
- 1...Ke5
- 1.Qd4+?
- 1...Ke7
- 2.Sg8#
- 2.Qd7#
- 2.Qd8#
- 1...Bd5!
- 1...Ke7
- 1.Qf4+?
- 1...Ke7
- 2.Sg8#
- 1...Kc5!
- 1...Ke7
- 1.Bxf5?
- Keys
- 1.Bd7!
- threat
- 2.c8S#
- 1...Ke5
- 2.Sf7#
- 1...Kxd7
- 2.c8Q#
- 2.c8B#
- 1...Ke7
- 2.c8S#
- 1...Bh1
- 2.c8Q#
- 2.c8S#
- 2.c8B#
- 2.c8R#
- 1...Bg2
- 2.c8Q#
- 2.c8S#
- 2.c8B#
- 2.c8R#
- 1...Bd3
- 2.c8Q#
- 2.c8S#
- 2.c8B#
- 2.c8R#
- 1...Bf3
- 2.c8Q#
- 2.c8S#
- 2.c8B#
- 2.c8R#
- 1...Bd5
- 2.c8Q#
- 2.c8S#
- 2.c8B#
- 2.c8R#
- 1...Bc6
- 2.c8Q#
- 2.c8S#
- 2.c8B#
- 2.c8R#
- 1...Bb7
- 2.c8Q#
- 2.c8B#
- 1...Ba8
- 2.c8Q#
- 2.c8S#
- 2.c8B#
- 2.c8R#
- 1...Be7
- 2.c8Q#
- 2.c8S#
- 2.c8B#
- 2.c8R#
- 1...Bd8
- 2.cxd8Q#
- 2.cxd8B#
- threat
- 1.Bd7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 0
- REMOVED MATES = 8
- Sets
- K(g);P_SPINB(d),S_FLIGHT::S(E)
- K(g);P_SPINB(d),S_FLIGHT::S(E),XP(f)
- B(d);::S(E)
- B(e);SBLOCK::S(E)
- Tries
- Try
- B(J);XP(f)
- Threat
- DUALS(4)
- Refutation
- K(g);P_SPINB(d),S_FLIGHT
- Try
- B(J);
- Threat
- P=Q
- Vars
- K(g);P-FLIGHT,P_SPINB(d)::P=Q
- K(g);P-FLIGHT::P=Q
- K(g);P_SPINB(d),S_FLIGHT::P=Q
- R(h);XS(E)::P=Q
- P(i);XS(E)::P=Q
- Q(a);::P=Q
- R(h);::P=Q
- B(d);::P=Q
- B(e);::P=Q
- B(e);OGATE,P_PINP(G)::PXB(e)=S
- S(c);::P=Q
- P(f);::P=Q
- Refutation
- K(g);P_SPINB(d),S_FLIGHT
- Try
- B(J);
- Threat
- P=Q
- Vars
- K(g);P_SPINB(d),S_FLIGHT::P=Q
- K(g);P-FLIGHT,P_SPINB(d),XB(J)::P=Q
- R(h);XS(E)::P=Q
- P(i);XS(E)::P=Q
- Q(a);::P=Q
- R(h);::P=Q
- B(e);::P=Q
- B(e);OGATE,P_PINP(G)::PXB(e)=S
- S(c);::P=Q
- P(f);::P=Q
- Refutation
- K(g);S_FLIGHT
- Try
- R(F);CHECK
- Refutation
- S(c);P_SPINS(c)
- Try
- R(K);CHECK
- Refutation
- K(g);P_SPINB(d),S_FLIGHT
- Try
- Q(A);CHECK
- Refutation
- B(d);P_SPINB(d)
- Try
- Q(A);CHECK
- Vars
- K(g);S_FLIGHT::S(E)
- Refutation
- K(g);S_FLIGHT
- Try
- Actual
- B(J);
- Threat
- P=S
- Vars
- K(g);P_SPINB(d),S_FLIGHT::S(E)
- K(g);P-FLIGHT,XB(J)::P=Q
- K(g);P_SPINB(d),S_FLIGHT::P=S
- B(d);::P=Q
- B(e);OGATE,P_PINP(G)::PXB(e)=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).