MESON Chess Problem Database
Problem Display
PID: 246332 (2N5/1nbB1Pq1/3BPPN1/2rk2KR/6pQ/3PP2p/4n3/6r1 w - - 0 1)
Chepizhni, Viktor Ivanovich
Shakhmatnaya Poeziya, 2003
#2
12 + 9
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Qxf6+
- 2.Kxf6#
- 1...Qh6+
- 2.Kxh6#
- 1...Qh8
- 2.Sge7#
- 1...Qxg6+
- 2.Kxg6#
- 1...Qxf7
- 2.Kh6#
- 1...Qh7
- 2.Sge7#
- 1...Qg8
- 2.Kh6#
- 1...Ra1
- 2.Kxg4#
- 1...Rb1
- 2.Kxg4#
- 1...Rgc1
- 2.Kxg4#
- 1...Rd1
- 2.Kxg4#
- 1...Re1
- 2.Kxg4#
- 1...Rh1
- 2.Kxg4#
- 1...Bxd6
- 2.Sb6#
- 1...Sc1
- 2.Kf4#
- 1...Sc3
- 2.Kf4#
- 1...Sd4
- 2.e4#
- 1...Sf4
- 2.Kxf4#
- 1...Sxd6
- 2.Se7#
- 1...g3
- 2.Kg4#
- 2.Qe4#
- 1...Qxf6+
- Tries
- 1.Qf2?
- threat
- 2.Kh4#
- 2.Qf5#
- 2.e4#
- 1...Qxf6+
- 2.Kxf6#
- 1...Qh6+
- 2.Kxh6#
- 1...Qxg6+
- 2.Kxg6#
- 1...Bxd6
- 2.Sb6#
- 2.e4#
- 1...Sxd6
- 2.Se7#
- 1...Qh8
- 2.Sge7#
- 2.Qf5#
- 2.e4#
- 1...Qh7
- 2.Sge7#
- 2.Qf5#
- 2.e4#
- 1...Rf1
- 2.Kxg4#
- 2.Kh4#
- 2.e4#
- 1...Rc4
- 2.Kh4#
- 2.Qf5#
- 1...Sc3
- 2.Kf4#
- 2.Kh4#
- 2.Qf5#
- 1...Sd4
- 2.e4#
- 1...Sf4
- 2.Kxf4#
- 2.e4#
- 1...Sg3!
- threat
- 1.Qg3?
- threat
- 2.Kxg4#
- 2.Kh4#
- 2.Se7#
- 2.Qe5#
- 1...Qxf6+
- 2.Kxf6#
- 1...Qh6+
- 2.Kxh6#
- 1...Qxg6+
- 2.Kxg6#
- 1...Qxf7
- 2.Kxg4#
- 2.Kh4#
- 2.Kh6#
- 2.Qe5#
- 1...Rxg3
- 2.Kh4#
- 1...Bxd6
- 2.Sb6#
- 1...Sxd6
- 2.Se7#
- 2.Qe5#
- 1...Qf8
- 2.Kxg4#
- 2.Kh4#
- 2.Qe5#
- 1...Qh8
- 2.Sge7#
- 2.Sce7#
- 2.Qe5#
- 1...Qh7
- 2.Sge7#
- 2.Sce7#
- 2.Qe5#
- 1...Rf1
- 2.Se7#
- 2.Qe5#
- 1...Rc4
- 2.Kh4#
- 2.Se7#
- 2.Qe5#
- 1...Bd8
- 2.Kxg4#
- 2.Kh4#
- 2.Qe5#
- 1...Sd4
- 2.Se7#
- 2.Qe5#
- 2.e4#
- 1...Sf4
- 2.Kxf4#
- 1...Sxg3!
- threat
- 1.fxg7?
- threat
- 2.Kf6#
- 2.Kh6#
- 2.Sge7#
- 1...Bxd6
- 2.Sb6#
- 1...Sxd6
- 2.Sce7#
- 1...Sg3
- 2.Sf4#
- 2.Sge7#
- 1...Rf1
- 2.Sge7#
- 1...Sd4
- 2.Sf4#
- 2.Sge7#
- 2.e4#
- 1...Sf4
- 2.Kxf4#
- 2.Sxf4#
- 2.Sge7#
- 1...Bd8+!
- threat
- 1.Qf2?
- Keys
- 1.Qxg4!
- threat
- 2.Kh4#
- 1...Qxf6+
- 2.Kxf6#
- 1...Qh6+
- 2.Kxh6#
- 1...Qxg6+
- 2.Kxg6#
- 1...Rxg4+
- 2.Kxg4#
- 1...Bxd6
- 2.Sb6#
- 1...Sxd6
- 2.Se7#
- 1...Sg3
- 2.Qd4#
- 1...Qh8
- 2.Sge7#
- 1...Qh7
- 2.Sge7#
- 1...Rf1
- 2.Qe4#
- 1...Sd4
- 2.e4#
- 1...Sf4
- 2.Kxf4#
- threat
- 1.Qxg4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 10
- Sets
- Q(i);CHECK,N_PINS(I),XP(H)::R(E)+K(D),XQ(i)
- Q(i);CHECK,N_PINS(I)::R(E)+K(D),XQ(i)
- Q(i);N_PINS(I)::S(I)
- Q(i);CHECK,XS(I)::R(E)+K(D),XQ(i)
- Q(i);N_PINS(I),XP(K)::R(E)+K(D)
- Q(i);::R(E)+K(D)
- R(a);::R(E)+K(D),XP(d)
- B(h);N_GUARD,SBLOCK,XB(F)::S(L)
- S(b);::R(E)+K(D)
- S(b);SBLOCK::P(B)
- S(b);::R(E)+K(D),XS(b)
- S(g);SBLOCK,XB(F)::S(L)
- Tries
- Try
- Q(C);
- Threat
- DUALS(3)
- Vars
- Q(i);CHECK,N_PINS(I),XP(H)::R(E)+K(D),XQ(i)
- Q(i);CHECK,N_PINS(I)::R(E)+K(D),XQ(i)
- Q(i);CHECK,XS(I)::R(E)+K(D),XQ(i)
- S(g);SBLOCK,XB(F)::S(L)
- S(b);::P(B)
- Refutation
- S(b);
- Try
- Q(C);
- Threat
- DUALS(4)
- Vars
- Q(i);CHECK,N_PINS(I),XP(H)::R(E)+K(D),XQ(i)
- Q(i);CHECK,N_PINS(I)::R(E)+K(D),XQ(i)
- Q(i);CHECK,XS(I)::R(E)+K(D),XQ(i)
- R(a);XQ(C)::R(E)+K(D)
- B(h);N_GUARD,XB(F)::S(L)
- S(b);::R(E)+K(D),XS(b)
- Refutation
- S(b);XQ(C)
- Try
- P(H);N_SPINS(I),XQ(i)
- Threat
- DUALS(3)
- Vars
- B(h);N_GUARD,SBLOCK,XB(F)::S(L)
- S(g);SBLOCK,XB(F)::S(L)
- R(a);::S(I)
- Refutation
- B(h);CHECK
- Try
- Actual
- Q(C);P_SPINQ(C),XP(d)
- Threat
- R(E)+K(D)
- Vars
- Q(i);CHECK,N_PINS(I),XP(H)::R(E)+K(D),XQ(i)
- Q(i);CHECK,N_PINS(I)::R(E)+K(D),XQ(i)
- Q(i);CHECK,XS(I)::R(E)+K(D),XQ(i)
- R(a);CHECK,XQ(C)::R(E)+K(D),XR(a)
- B(h);N_GUARD,SBLOCK,XB(F)::S(L)
- S(g);SBLOCK,XB(F)::S(L)
- S(b);N_PINQ(C)::QAR1(C)
- Q(i);N_PINS(I)::S(I)
- R(a);N_PINQ(C)::QAB1(C)
- S(b);SBLOCK::P(B)
- S(b);::R(E)+K(D),XS(b)
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).