MESON Chess Problem Database
Problem Display
PID: 132065 (4NQ1K/Np1PR3/3P3p/RBnk4/r1p4r/1PB4b/2n3Pb/8 w - - 0 1)
Shanshin, Valery Yurevich
1st Prize, Uralski Skazi, 2000
#2
12 + 10
| 56 | The Problemist | 2008 |
SOLUTION
- SOUND
- Sets
- 1...Rf4
- 2.Re5#
- 1...Bg1
- 2.Re5#
- 1...Be5+
- 2.Rxe5#
- 1...Bxd6
- 2.Sf6#
- 1...Sxb3
- 2.Bc6#
- 1...Sd3
- 2.Bxc4#
- 2.Bc6#
- 1...Se4
- 2.Bxc4#
- 2.Bc6#
- 1...Sa6
- 2.Bxc4#
- 2.Bc6#
- 1...Se6
- 2.Bc6#
- 1...Sxd7
- 2.Bxc4#
- 2.Bc6#
- 1...b6
- 2.Bc6#
- 1...Rf4
- Tries
- 1.Re2?
- threat
- 2.Sf6#
- 2.Sc7#
- 1...Be5+
- 2.Rxe5#
- 1...Bxd6
- 2.Sf6#
- 2.Qxd6#
- 1...Sxb3
- 2.Bc6#
- 1...Sxd7
- 2.Bxc4#
- 2.Bc6#
- 1...Re4
- 2.Sc7#
- 1...Sd3
- 2.Bxc4#
- 2.Bc6#
- 1...Se4
- 2.Bxc4#
- 1...Sa6
- 2.Bxc4#
- 2.Bc6#
- 1...Se6
- 2.Bxc4#
- 2.Bc6#
- 1...Rf4
- 2.Sc7#
- 2.Re5#
- 1...Se3!
- threat
- 1.Re3?
- threat
- 2.Sf6#
- 2.Sc7#
- 1...Be5+
- 2.Rxe5#
- 1...Bxd6
- 2.Sf6#
- 2.Qxd6#
- 1...Sxb3
- 2.Bc6#
- 1...Sxd7
- 2.Bxc4#
- 2.Bc6#
- 1...Re4
- 2.Sc7#
- 1...Sd3
- 2.Bxc4#
- 2.Bc6#
- 1...Se4
- 2.Bxc4#
- 1...Sa6
- 2.Bxc4#
- 2.Bc6#
- 1...Se6
- 2.Bxc4#
- 2.Bc6#
- 1...Rf4
- 2.Sc7#
- 2.Re5#
- 1...Sxe3!
- threat
- 1.Re6?
- threat
- 2.Sc7#
- 1...Be5+
- 2.Rxe5#
- 1...Kxe6
- 2.Sc7#
- 1...Bxd6
- 2.Qxd6#
- 1...Bxe6
- 2.Sf6#
- 1...Sxe6
- 2.Bc6#
- 1...Sxd7
- 2.Bxc4#
- 1...Sd3
- 2.Bxc4#
- 1...Se4
- 2.Bxc4#
- 1...Sa6
- 2.Bxc4#
- 1...Sxb3!
- threat
- 1.Qf3+?
- 1...Se4
- 2.Bxc4#
- 2.Bc6#
- 1...Re4!
- 1...Se4
- 1.Qf4?
- threat
- 2.Sf6#
- 2.Sc7#
- 2.Re5#
- 1...Rxf4
- 2.Re5#
- 1...Sxb3
- 2.Bxc4#
- 2.Bc6#
- 2.Re5#
- 1...Sxd7
- 2.Bxc4#
- 2.Bc6#
- 1...Sd3
- 2.Bxc4#
- 2.Bc6#
- 1...Se4
- 2.Bxc4#
- 2.Bc6#
- 2.Re5#
- 1...Sa6
- 2.Bxc4#
- 2.Bc6#
- 2.Re5#
- 1...Se6
- 2.Bxc4#
- 2.Bc6#
- 1...Rh5
- 2.Sf6#
- 2.Sc7#
- 1...Be6
- 2.Sf6#
- 2.Sc7#
- 1...Bxf4!
- threat
- 1.Qf5+?
- 1...Be5+
- 2.Rxe5#
- 2.Qxe5#
- 1...Bxf5!
- 1...Be5+
- 1.Qf6?
- threat
- 2.Sc7#
- 1...Bxd6
- 2.Qxd6#
- 1...Sxb3
- 2.Bc6#
- 1...Sxd7
- 2.Bxc4#
- 2.Bc6#
- 1...Be5
- 2.Rxe5#
- 2.Qxe5#
- 1...Sd3
- 2.Bxc4#
- 2.Bc6#
- 1...Se4
- 2.Bxc4#
- 2.Bc6#
- 1...Sa6
- 2.Bxc4#
- 2.Bc6#
- 1...Se6
- 2.Bc6#
- 1...Be6!
- threat
- 1.Qf7+?
- 1...Se6
- 2.Bc6#
- 1...Be6!
- 1...Se6
- 1.Qg8+?
- 1...Se6
- 2.Bc6#
- 1...Be6!
- 1...Se6
- 1.d8Q?
- threat
- 2.Sf6#
- 2.Sc7#
- 1...Be5+
- 2.Rxe5#
- 1...Sxb3
- 2.Bc6#
- 1...Be6
- 2.Sf6#
- 1...Sd3
- 2.Bxc4#
- 2.Bc6#
- 1...Se4
- 2.Bxc4#
- 2.Bc6#
- 1...Sa6
- 2.Bxc4#
- 2.Bc6#
- 1...Se6
- 2.Bc6#
- 1...Sd7
- 2.Bxc4#
- 2.Bc6#
- 1...Rf4
- 2.Sc7#
- 2.Re5#
- 1...Bd7!
- threat
- 1.d8R?
- threat
- 2.Sf6#
- 2.Sc7#
- 1...Be5+
- 2.Rxe5#
- 1...Sxb3
- 2.Bc6#
- 1...Be6
- 2.Sf6#
- 1...Sd3
- 2.Bxc4#
- 2.Bc6#
- 1...Se4
- 2.Bxc4#
- 2.Bc6#
- 1...Sa6
- 2.Bxc4#
- 2.Bc6#
- 1...Se6
- 2.Bc6#
- 1...Sd7
- 2.Bxc4#
- 2.Bc6#
- 1...Rf4
- 2.Sc7#
- 2.Re5#
- 1...Bd7!
- threat
- 1.Re2?
- Keys
- 1.Re4!
- threat
- 2.Sf6#
- 1...Be5+
- 2.Rxe5#
- 1...Kxe4
- 2.Qf3#
- 1...Rxe4
- 2.Sc7#
- 1...Sxb3
- 2.Bc6#
- 1...Sxe4
- 2.Bxc4#
- 1...Sxd7
- 2.Bc6#
- 1...Sd3
- 2.Bc6#
- 1...Sa6
- 2.Bc6#
- 1...Se6
- 2.Bc6#
- 1...Rf4
- 2.Re5#
- threat
- 1.Re4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 6
- REMOVED MATES = 3
- Sets
- R(f);S_CUTB(b)::R1(I)
- B(b);N_GUARD::R1(I)
- B(b);CHECK,N_GUARD::R1(I),XB(b)
- B(b);SBLOCK,XP(F)::S(J)
- S(g);XP(B)::R(D)+B(E),DCHECK
- S(g);::R(D)+B(E),DCHECK
- P(j);N_GUARD::B(E)
- Tries
- Try
- R(I);
- Threat
- DUALS(2)
- Vars
- B(b);CHECK,N_GUARD::R1(I),XB(b)
- S(g);XP(B)::R(D)+B(E),DCHECK
- R(f);::S(J)
- S(g);::R(D)+B(E),DCHECK,XP(e)
- Refutation
- S(a);
- Try
- R(I);
- Threat
- DUALS(2)
- Vars
- B(b);CHECK,N_GUARD::R1(I),XB(b)
- S(g);XP(B)::R(D)+B(E),DCHECK
- R(f);::S(J)
- S(g);::R(D)+B(E),DCHECK,XP(e)
- Refutation
- S(a);XR(I)
- Try
- R(I);
- Threat
- S(J)
- Vars
- B(b);CHECK,N_GUARD::R1(I),XB(b)
- K(h);S_FLIGHT,XR(I)::S(J)
- B(b);OGATE,XP(F)::QAR1(K),XB(b)
- B(c);SBLOCK,XR(I)::S(J)
- S(g);SBLOCK,XR(I)::R(D)+B(E),DCHECK
- S(g);XP(H)::R(D)+B(E),DCHECK,XP(e)
- S(g);::R(D)+B(E),DCHECK,XP(e)
- Refutation
- S(g);XP(B)
- Try
- Q(K);CHECK
- Refutation
- R(f);P_SPINR(f)
- Try
- Q(K);
- Threat
- DUALS(3)
- Vars
- R(f);XQ(K)::R1(I)
- Refutation
- B(b);XQ(K)
- Try
- Q(K);CHECK
- Refutation
- B(c);XQ(K)
- Try
- Q(K);
- Threat
- S(J)
- Vars
- B(b);OGATE,XP(F)::QAR1(K),XB(b)
- S(g);XP(B)::R(D)+B(E),DCHECK
- S(g);::R(D)+B(E),DCHECK
- Refutation
- B(c);
- Try
- Q(K);CHECK
- Vars
- S(g);P_SPINS(g)::R(D)+B(E),DCHECK
- Refutation
- B(c);P_SPINB(c)
- Try
- Q(K);CHECK
- Vars
- S(g);P_SPINS(g)::R(D)+B(E),DCHECK
- Refutation
- B(c);P_SPINB(c)
- Try
- P(H);
- Threat
- DUALS(2)
- Vars
- B(b);CHECK,N_GUARD::R1(I),XB(b)
- S(g);XP(B)::R(D)+B(E),DCHECK
- B(c);::S(J)
- S(g);::R(D)+B(E),DCHECK
- Refutation
- B(c);
- Try
- P(H);
- Threat
- DUALS(2)
- Vars
- B(b);CHECK,N_GUARD::R1(I),XB(b)
- S(g);XP(B)::R(D)+B(E),DCHECK
- B(c);::S(J)
- S(g);::R(D)+B(E),DCHECK
- Refutation
- B(c);
- Try
- Actual
- R(I);
- Threat
- S(J)
- Vars
- B(b);CHECK,N_GUARD::R1(I),XB(b)
- K(h);OGATEB,S_FLIGHT,XR(I)::QAB1(K)
- R(f);SBLOCK,XR(I)::S(J)
- S(g);XP(B)::R(D)+B(E),DCHECK
- S(g);SBLOCK,XR(I)::R(D)+B(E),DCHECK,XP(e)
- S(g);XP(H)::R(D)+B(E),DCHECK
- S(g);::R(D)+B(E),DCHECK
- R(f);S_CUTB(b)::R1(I)
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).