MESON Chess Problem Database
Problem Display
PID: 138480 (7n/1p2Rp2/1KbB2pR/1pr2k2/1P1Q2NP/3PPpp1/6n1/3B4 w - - 0 1)
Chepizhni, Viktor Ivanovich
2nd HM., Probleemblad, 1961
#2
11 + 11
| 6167 | Viktor Chepizhny | 2007 |
| 56 | The Problemist | 2011 |
SOLUTION
- SOUND
- Sets
- 1...Rc1
- 2.Re5#
- 1...Rc2
- 2.Re5#
- 1...Rc3
- 2.Re5#
- 1...Rc4
- 2.Re5#
- 1...Rd5
- 2.Qe4#
- 1...Re5
- 2.Rxe5#
- 1...Be4
- 2.Qxe4#
- 1...Bd5
- 2.Re5#
- 1...Bd7
- 2.Qe4#
- 1...Be8
- 2.Qe4#
- 1...Se1
- 2.Qf4#
- 1...Sxe3
- 2.Sxe3#
- 2.Qf4#
- 1...Sf4
- 2.Qxf4#
- 1...Sxh4
- 2.Qf4#
- 1...f2
- 2.Qf6#
- 1...g5
- 2.Rf6#
- 1...Rc1
- Tries
- 1.Sf2?
- 1...Sxe3
- 2.Qf4#
- 1...Sxh4
- 2.Qf4#
- 1...Re5
- 2.Qxe5#
- 1...f6
- 2.Qg4#
- 1...Rc1
- 2.Qe5#
- 1...Rc2
- 2.Qe5#
- 1...Rc3
- 2.Qe5#
- 1...Rc4
- 2.Qe5#
- 1...Rd5
- 2.e4#
- 1...Be4
- 2.dxe4#
- 1...Bd5
- 2.Qe5#
- 1...Bd7
- 2.e4#
- 1...Be8
- 2.e4#
- 1...Se1
- 2.Qf4#
- 1...Sf4
- 2.Qxf4#
- 1...g5
- 2.Rf6#
- 2.Qf6#
- 2.Qg4#
- 1...gxf2!
- 1...Sxe3
- 1.Sh2?
- 1...Sxe3
- 2.Qf4#
- 1...Sxh4
- 2.Qf4#
- 1...Re5
- 2.Qxe5#
- 1...f6
- 2.Qg4#
- 1...Rc1
- 2.Qe5#
- 1...Rc2
- 2.Qe5#
- 1...Rc3
- 2.Qe5#
- 1...Rc4
- 2.Qe5#
- 1...Rd5
- 2.e4#
- 1...Be4
- 2.dxe4#
- 1...Bd5
- 2.Qe5#
- 1...Bd7
- 2.e4#
- 1...Be8
- 2.e4#
- 1...Se1
- 2.Qf4#
- 1...Sf4
- 2.Qxf4#
- 1...f2
- 2.Bg4#
- 1...g5
- 2.Rf6#
- 2.Qf6#
- 2.Qg4#
- 1...gxh2!
- 1...Sxe3
- 1.Bb3?
- 1...Sxe3
- 2.Sxe3#
- 2.Qf4#
- 1...Sxh4
- 2.Qf4#
- 1...Be4
- 2.Qxe4#
- 1...Sf4
- 2.Qxf4#
- 1...f6
- 2.Be6#
- 1...Rc1
- 2.Re5#
- 1...Rc2
- 2.Re5#
- 1...Rc3
- 2.Re5#
- 1...Rc4
- 2.Re5#
- 1...Rd5
- 2.Qe4#
- 1...Re5
- 2.Rxe5#
- 1...Bd5
- 2.Re5#
- 1...Bd7
- 2.Qe4#
- 1...Be8
- 2.Qe4#
- 1...Se1
- 2.Qf4#
- 1...g5
- 2.Rf6#
- 1...f2!
- 1...Sxe3
- 1.Bxf3?
- threat
- 2.Qf6#
- 1...f6
- 2.Qxf6#
- 1...Re5
- 2.Rxe5#
- 2.Qxe5#
- 1...Bxf3!
- threat
- 1.Bxg3?
- 1...Sxe3
- 2.Sxe3#
- 2.Qf4#
- 1...Sxh4
- 2.Qf4#
- 1...Be4
- 2.Qxe4#
- 2.Qd7#
- 1...Sf4
- 2.Qxf4#
- 1...Rc1
- 2.Re5#
- 1...Rc2
- 2.Re5#
- 1...Rc3
- 2.Re5#
- 1...Rc4
- 2.Re5#
- 1...Rd5
- 2.Qe4#
- 1...Re5
- 2.Rxe5#
- 1...Bd5
- 2.Re5#
- 1...Bd7
- 2.Qe4#
- 2.Qxd7#
- 1...Be8
- 2.Qe4#
- 1...Se1
- 2.Qf4#
- 1...f2
- 2.Qf6#
- 1...g5
- 2.Rf6#
- 1...f6!
- 1...Sxe3
- 1.Bxc5?
- threat
- 2.Re5#
- 1...Be4
- 2.Qxe4#
- 2.Qd7#
- 1...Sf4
- 2.Qxf4#
- 1...f6!
- threat
- 1.Bc7?
- 1...Sxe3
- 2.Sxe3#
- 2.Qf4#
- 1...Sxh4
- 2.Qf4#
- 1...Be4
- 2.Qxe4#
- 2.Qd7#
- 1...Sf4
- 2.Qxf4#
- 1...Rc1
- 2.Re5#
- 1...Rc2
- 2.Re5#
- 1...Rc3
- 2.Re5#
- 1...Rc4
- 2.Re5#
- 1...Rd5
- 2.Qe4#
- 1...Re5
- 2.Rxe5#
- 1...Bd5
- 2.Re5#
- 1...Bd7
- 2.Qe4#
- 2.Qxd7#
- 1...Be8
- 2.Qe4#
- 1...Se1
- 2.Qf4#
- 1...f2
- 2.Qf6#
- 1...g5
- 2.Rf6#
- 1...f6!
- 1...Sxe3
- 1.Bb8?
- 1...Sxe3
- 2.Sxe3#
- 2.Qf4#
- 1...Sxh4
- 2.Qf4#
- 1...Be4
- 2.Qxe4#
- 2.Qd7#
- 1...Sf4
- 2.Qxf4#
- 1...Rc1
- 2.Re5#
- 1...Rc2
- 2.Re5#
- 1...Rc3
- 2.Re5#
- 1...Rc4
- 2.Re5#
- 1...Rd5
- 2.Qe4#
- 1...Re5
- 2.Rxe5#
- 1...Bd5
- 2.Re5#
- 1...Bd7
- 2.Qe4#
- 2.Qxd7#
- 1...Be8
- 2.Qe4#
- 1...Se1
- 2.Qf4#
- 1...f2
- 2.Qf6#
- 1...g5
- 2.Rf6#
- 1...f6!
- 1...Sxe3
- 1.Rh5+?
- 1...g5
- 2.Rxg5#
- 1...gxh5!
- 1...g5
- 1.Rxg6?
- threat
- 2.Rg5#
- 2.Rf6#
- 2.Qf6#
- 1...Sxh4
- 2.Qf6#
- 1...Sxg6
- 2.Sh6#
- 1...fxg6
- 2.Sh6#
- 1...f6
- 2.Rxf6#
- 2.Qxf6#
- 1...Re5
- 2.Rg5#
- 2.Rf6#
- 1...Be4
- 2.Rg5#
- 2.Qf6#
- 2.Qxe4#
- 1...Sf4
- 2.Rg5#
- 2.Qf6#
- 1...Kxg6!
- threat
- 1.Rh7?
- threat
- 2.Sh6#
- 1...Sxh4
- 2.Qf4#
- 1...Re5
- 2.Rxe5#
- 1...g5!
- threat
- 1.Rxh8?
- threat
- 2.Sh6#
- 1...Sxh4
- 2.Qf4#
- 1...Re5
- 2.Rxe5#
- 1...g5!
- threat
- 1.Re4?
- threat
- 2.Qf6#
- 1...Bxe4
- 2.Qxe4#
- 1...Re5
- 2.Rxe5#
- 2.Qxe5#
- 1...f6
- 2.Qxf6#
- 1...Sf4!
- threat
- 1.Re8?
- 1...Bxe8
- 2.Qe4#
- 1...Sxe3
- 2.Sxe3#
- 2.Qf4#
- 1...Sxh4
- 2.Qf4#
- 1...Be4
- 2.Qxe4#
- 1...Sf4
- 2.Qxf4#
- 1...Rc1
- 2.Re5#
- 1...Rc2
- 2.Re5#
- 1...Rc3
- 2.Re5#
- 1...Rc4
- 2.Re5#
- 1...Rd5
- 2.Qe4#
- 1...Re5
- 2.Rxe5#
- 1...Bd5
- 2.Re5#
- 1...Bd7
- 2.Qe4#
- 1...Se1
- 2.Qf4#
- 1...f2
- 2.Qf6#
- 1...g5
- 2.Rf6#
- 1...f6!
- 1...Bxe8
- 1.e4+?
- 1...Bxe4
- 2.Qxe4#
- 1...Kxg4!
- 1...Bxe4
- 1.bxc5?
- threat
- 2.Re5#
- 1...Be4
- 2.Qxe4#
- 1...Sf4
- 2.Qxf4#
- 1...f6!
- threat
- 1.Sf2?
- Keys
- 1.Sf6!
- 1...Sxe3
- 2.Qf4#
- 1...Sxh4
- 2.Qf4#
- 1...Re5
- 2.Qxe5#
- 1...Rc1
- 2.Qe5#
- 1...Rc2
- 2.Qe5#
- 1...Rc3
- 2.Qe5#
- 1...Rc4
- 2.Qe5#
- 1...Rd5
- 2.e4#
- 1...Be4
- 2.dxe4#
- 1...Bd5
- 2.Qe5#
- 1...Bd7
- 2.e4#
- 1...Be8
- 2.e4#
- 1...Se1
- 2.Qf4#
- 1...Sf4
- 2.Qxf4#
- 1...f2
- 2.Bg4#
- 1...g5
- 2.Qg4#
- 1...Sxe3
- 1.Sf6!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 12
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- R(e);N_GUARD::R1(K)
- R(e);S_CUTB(g)::QAB1(E)
- R(e);N_GUARD::R1(K),XR(e)
- B(g);N_GUARD::QAB1(E),XB(g)
- B(g);S_CUTR(e)::R1(K)
- B(g);N_GUARD::QAB1(E)
- S(a);N_GUARD::QAR1(E)
- S(a);N_GUARD::QAR1(E),XS(a)
- S(a);N_GUARD,XP(G)::QAR1(E)
- P(b);::QAR1(E)
- P(h);OGATE::R1(J)
- Tries
- Try
- S(F);
- Vars
- S(a);N_GUARD,XP(C)::QAR1(E)
- S(a);N_GUARD,XP(G)::QAR1(E)
- R(e);N_GUARD::QAR1(E),XR(e)
- P(j);SBLOCK::QAB1(E)
- R(e);N_GUARD::QAR1(E)
- R(e);S_CUTB(g)::P(C)
- B(g);OGATE::P(B),XB(g)
- B(g);S_CUTR(e)::QAR1(E)
- B(g);N_GUARD::P(C)
- S(a);N_GUARD::QAR1(E)
- S(a);N_GUARD::QAR1(E),XS(a)
- Refutation
- P(c);XS(F)
- Try
- S(F);
- Vars
- S(a);N_GUARD,XP(C)::QAR1(E)
- S(a);N_GUARD,XP(G)::QAR1(E)
- R(e);N_GUARD::QAR1(E),XR(e)
- P(j);SBLOCK::QAB1(E)
- R(e);N_GUARD::QAR1(E)
- R(e);S_CUTB(g)::P(C)
- B(g);OGATE::P(B),XB(g)
- B(g);S_CUTR(e)::QAR1(E)
- B(g);N_GUARD::P(C)
- S(a);N_GUARD::QAR1(E)
- S(a);N_GUARD::QAR1(E),XS(a)
- P(b);OGATE::B(A)
- Refutation
- P(c);XS(F)
- Try
- B(A);
- Vars
- S(a);N_GUARD,XP(G)::QAR1(E)
- B(g);N_GUARD::QAB1(E),XB(g)
- S(a);N_GUARD::QAR1(E),XS(a)
- P(j);N_GUARD::B(A)
- R(e);N_GUARD::R1(K)
- R(e);S_CUTB(g)::QAB1(E)
- R(e);N_GUARD::R1(K),XR(e)
- B(g);S_CUTR(e)::R1(K)
- B(g);N_GUARD::QAB1(E)
- S(a);N_GUARD::QAR1(E)
- P(h);OGATE::R1(J)
- Refutation
- P(b);
- Try
- B(A);XP(b)
- Threat
- QAR1(E)
- Vars
- P(j);::QAR1(E),XP(j)
- Refutation
- B(g);XB(A)
- Try
- B(I);XP(c)
- Vars
- S(a);N_GUARD,XP(G)::QAR1(E)
- S(a);N_GUARD::QAR1(E),XS(a)
- R(e);N_GUARD::R1(K)
- R(e);S_CUTB(g)::QAB1(E)
- R(e);N_GUARD::R1(K),XR(e)
- B(g);S_CUTR(e)::R1(K)
- B(g);N_GUARD::QAB1(E)
- S(a);N_GUARD::QAR1(E)
- P(b);::QAR1(E)
- P(h);OGATE::R1(J)
- Refutation
- P(j);
- Try
- B(I);XR(e)
- Threat
- R1(K)
- Vars
- S(a);N_GUARD::QAR1(E),XS(a)
- Refutation
- P(j);
- Try
- B(I);
- Vars
- S(a);N_GUARD,XP(G)::QAR1(E)
- S(a);N_GUARD::QAR1(E),XS(a)
- R(e);N_GUARD::R1(K)
- R(e);S_CUTB(g)::QAB1(E)
- R(e);N_GUARD::R1(K),XR(e)
- B(g);S_CUTR(e)::R1(K)
- B(g);N_GUARD::QAB1(E)
- S(a);N_GUARD::QAR1(E)
- P(b);::QAR1(E)
- P(h);OGATE::R1(J)
- Refutation
- P(j);
- Try
- B(I);
- Vars
- S(a);N_GUARD,XP(G)::QAR1(E)
- S(a);N_GUARD::QAR1(E),XS(a)
- R(e);N_GUARD::R1(K)
- R(e);S_CUTB(g)::QAB1(E)
- R(e);N_GUARD::R1(K),XR(e)
- B(g);S_CUTR(e)::R1(K)
- B(g);N_GUARD::QAB1(E)
- S(a);N_GUARD::QAR1(E)
- P(b);::QAR1(E)
- P(h);OGATE::R1(J)
- Refutation
- P(j);
- Try
- R(J);CHECK
- Vars
- P(h);P_SPINP(h)::R1(J),XP(h)
- Refutation
- P(h);XR(J)
- Try
- R(J);XP(h)
- Threat
- DUALS(3)
- Vars
- S(a);XP(G)::QAR1(E)
- S(k);SBLOCK,XR(J)::S(F)
- P(j);SBLOCK,XR(J)::S(F)
- Refutation
- K(f);S_FLIGHT,XR(J)
- Try
- R(J);
- Threat
- S(F)
- Vars
- S(a);N_GUARD,XP(G)::QAR1(E)
- R(e);N_GUARD::R1(K),XR(e)
- Refutation
- P(h);
- Try
- R(J);XS(k)
- Threat
- S(F)
- Vars
- S(a);N_GUARD,XP(G)::QAR1(E)
- R(e);N_GUARD::R1(K),XR(e)
- Refutation
- P(h);
- Try
- R(K);
- Threat
- QAR1(E)
- Vars
- B(g);OGATE,XR(K)::QAB1(E),XB(g)
- P(j);::QAR1(E),XP(j)
- Refutation
- S(a);
- Try
- R(K);
- Vars
- B(g);N_GUARD,XR(K)::QAB1(E)
- S(a);N_GUARD,XP(G)::QAR1(E)
- B(g);N_GUARD::QAB1(E),XB(g)
- S(a);N_GUARD::QAR1(E),XS(a)
- R(e);N_GUARD::R1(K)
- R(e);S_CUTB(g)::QAB1(E)
- R(e);N_GUARD::R1(K),XR(e)
- B(g);S_CUTR(e)::R1(K)
- B(g);N_GUARD::QAB1(E)
- S(a);N_GUARD::QAR1(E)
- P(b);::QAR1(E)
- P(h);OGATE::R1(J)
- Refutation
- P(j);
- Try
- P(C);CHECK
- Vars
- B(g);OGATE,XP(C)::QAB1(E),XB(g)
- Refutation
- K(f);P_SPINP(b),S_FLIGHT,XS(F)
- Try
- P(D);XR(e)
- Threat
- R1(K)
- Vars
- B(g);N_GUARD::QAB1(E),XB(g)
- S(a);N_GUARD::QAR1(E),XS(a)
- Refutation
- P(j);
- Try
- Actual
- S(F);
- Vars
- S(a);N_GUARD,XP(C)::QAR1(E)
- S(a);N_GUARD,XP(G)::QAR1(E)
- R(e);N_GUARD::QAR1(E),XR(e)
- R(e);N_GUARD::QAR1(E)
- R(e);S_CUTB(g)::P(C)
- B(g);OGATE::P(B),XB(g)
- B(g);S_CUTR(e)::QAR1(E)
- B(g);N_GUARD::P(C)
- S(a);N_GUARD::QAR1(E)
- S(a);N_GUARD::QAR1(E),XS(a)
- P(b);OGATE::B(A)
- P(h);::QAB1(E)
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).