MESON Chess Problem Database
Problem Display
PID: 180389 (5n2/3prP1P/4P2B/3P2N1/Q3K3/2Pp1P1P/NpBkprb1/4b1n1 w - - 0 1)
Lider, Valentin Viktorovich
Sp. Prize, Themes-64, 1973
#2
13 + 11
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Rxf3
- 2.Sxf3#
- 1...Rxe6+
- 2.Sxe6#
- 1...Rxf7
- 2.Sxf7#
- 1...Bxf3+
- 2.Sxf3#
- 1...Bxh3
- 2.Sxh3#
- 1...Sxf3
- 2.Sxf3#
- 1...Sxh3
- 2.Sxh3#
- 1...Sxe6
- 2.Sxe6#
- 1...Sxh7
- 2.Sxh7#
- 1...dxc2
- 2.Qd4#
- 1...dxe6
- 2.Sxe6#
- 1...Rxf3
- Tries
- 1.Kd4?
- threat
- 2.Se4#
- 1...Sxf3+
- 2.Sxf3#
- 1...Sxe6+
- 2.Sxe6#
- 1...dxc2!
- threat
- 1.h4?
- threat
- 2.Sh3#
- 1...Rxe6+
- 2.Sxe6#
- 1...Bxf3+
- 2.Sxf3#
- 1...Rxf3
- 2.Sxf3#
- 1...Rxf7
- 2.Sxf7#
- 1...Sxf3
- 2.Sxf3#
- 1...Sxe6
- 2.Sxe6#
- 1...Sxh7
- 2.Sxh7#
- 1...dxc2
- 2.Qd4#
- 1...Bh3
- 2.Sxh3#
- 1...Sh3
- 2.Sxh3#
- 1...Sg6!
- threat
- 1.h8Q?
- threat
- 2.Sh7#
- 1...Rxe6+
- 2.Sxe6#
- 1...Bxf3+
- 2.Sxf3#
- 1...Rxf3
- 2.Sxf3#
- 1...Rxf7
- 2.Sxf7#
- 1...Sxf3
- 2.Sxf3#
- 1...Sxh3
- 2.Sxh3#
- 1...Sxe6
- 2.Sxe6#
- 1...dxc2
- 2.Qhd4#
- 2.Qad4#
- 1...Sh7
- 2.Sxh7#
- 1...Sg6!
- threat
- 1.h8S?
- threat
- 2.Sh7#
- 1...Rxe6+
- 2.Sxe6#
- 1...Bxf3+
- 2.Sxf3#
- 1...Rxf3
- 2.Sxf3#
- 1...Rxf7
- 2.Sgxf7#
- 1...Sxf3
- 2.Sxf3#
- 1...Sxh3
- 2.Sxh3#
- 1...Sxe6
- 2.Sxe6#
- 1...dxc2
- 2.Qd4#
- 1...Sh7
- 2.Sxh7#
- 1...Sg6!
- threat
- 1.h8B?
- threat
- 2.Sh7#
- 1...Rxe6+
- 2.Sxe6#
- 1...Bxf3+
- 2.Sxf3#
- 1...Rxf3
- 2.Sxf3#
- 1...Rxf7
- 2.Sxf7#
- 1...Sxf3
- 2.Sxf3#
- 1...Sxh3
- 2.Sxh3#
- 1...Sxe6
- 2.Sxe6#
- 1...dxc2
- 2.Qd4#
- 1...Sh7
- 2.Sxh7#
- 1...Sg6!
- threat
- 1.h8R?
- threat
- 2.Sh7#
- 1...Rxe6+
- 2.Sxe6#
- 1...Bxf3+
- 2.Sxf3#
- 1...Rxf3
- 2.Sxf3#
- 1...Rxf7
- 2.Sxf7#
- 1...Sxf3
- 2.Sxf3#
- 1...Sxh3
- 2.Sxh3#
- 1...Sxe6
- 2.Sxe6#
- 1...dxc2
- 2.Qd4#
- 1...Sh7
- 2.Sxh7#
- 1...Sg6!
- threat
- 1.Kd4?
- Keys
- 1.Kf5!
- threat
- 2.Se4#
- 1...Rxf3+
- 2.Sxf3#
- 1...Rxf7+
- 2.Sxf7#
- 1...Bxh3+
- 2.Sxh3#
- 1...dxe6+
- 2.Sxe6#
- 1...Ke3
- 2.Qf4#
- 1...dxc2
- 2.Qd4#
- threat
- 1.Kf5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 6
- Sets
- R(f);P_PINP(J),XP(D)::B(K)+S(I),DCHECK,XR(f)
- R(j);CHECK,XP(J)::B(K)+S(I),XR(j)
- R(j);XP(L)::B(K)+S(I),XR(j)
- B(g);CHECK,P_PINP(J),XP(D)::B(K)+S(I),DCHECK,XB(g)
- B(g);N_PINP(D),P_PINP(J),XP(E)::B(K)+S(I),XB(g)
- S(b);P_PINP(J),XP(D)::B(K)+S(I),DCHECK,XS(b)
- S(b);XP(E)::B(K)+S(I),XS(b)
- S(k);XP(J)::B(K)+S(I),XS(k)
- S(k);XP(M)::B(K)+S(I),XS(k)
- P(h);OGATEB,SBLOCK,XB(B)::QAR2(F)
- P(i);XP(J)::B(K)+S(I),XP(i)
- Tries
- Try
- K(G);N_SPINP(D),P-FLIGHT
- Threat
- B(K)+S(I),DCHECK
- Vars
- S(b);CHECK,XP(D)::B(K)+S(I),DCHECK,XS(b)
- S(k);CHECK,XP(J)::B(K)+S(I),XS(k)
- Refutation
- P(h);XB(B)
- Try
- P(E);
- Threat
- B(K)+S(I)
- Vars
- R(j);CHECK,XP(J)::B(K)+S(I),XR(j)
- B(g);CHECK,P_PINP(J),XP(D)::B(K)+S(I),DCHECK,XB(g)
- R(f);P_PINP(J),XP(D)::B(K)+S(I),DCHECK,XR(f)
- R(j);XP(L)::B(K)+S(I),XR(j)
- S(b);P_PINP(J),XP(D)::B(K)+S(I),DCHECK,XS(b)
- S(k);XP(J)::B(K)+S(I),XS(k)
- S(k);XP(M)::B(K)+S(I),XS(k)
- P(h);OGATEB,SBLOCK,XB(B)::QAR2(F)
- B(g);N_PINP(D),P_PINP(J)::B(K)+S(I),XB(g)
- S(b);::B(K)+S(I),XS(b)
- Refutation
- S(k);
- Try
- P(M);
- Threat
- B(K)+S(I)
- Vars
- R(j);CHECK,XP(J)::B(K)+S(I),XR(j)
- B(g);CHECK,P_PINP(J),XP(D)::B(K)+S(I),DCHECK,XB(g)
- R(f);P_PINP(J),XP(D)::B(K)+S(I),DCHECK,XR(f)
- R(j);XP(L)::B(K)+S(I),XR(j)
- S(b);P_PINP(J),XP(D)::B(K)+S(I),DCHECK,XS(b)
- S(b);XP(E)::B(K)+S(I),XS(b)
- S(k);XP(J)::B(K)+S(I),XS(k)
- S(k);::B(K)+S(I),XS(k)
- Refutation
- S(k);
- Try
- P(M);
- Threat
- B(K)+S(I)
- Vars
- R(j);CHECK,XP(J)::B(K)+S(I),XR(j)
- B(g);CHECK,P_PINP(J),XP(D)::B(K)+S(I),DCHECK,XB(g)
- R(f);P_PINP(J),XP(D)::B(K)+S(I),DCHECK,XR(f)
- R(j);XP(L)::B(K)+S(I),XR(j)
- S(b);P_PINP(J),XP(D)::B(K)+S(I),DCHECK,XS(b)
- S(b);XP(E)::B(K)+S(I),XS(b)
- S(k);XP(J)::B(K)+S(I),XS(k)
- P(h);OGATEB,SBLOCK,XB(B)::QAR2(F)
- S(k);::B(K)+S(I),XS(k)
- Refutation
- S(k);
- Try
- P(M);
- Threat
- B(K)+S(I)
- Vars
- R(j);CHECK,XP(J)::B(K)+S(I),XR(j)
- B(g);CHECK,P_PINP(J),XP(D)::B(K)+S(I),DCHECK,XB(g)
- R(f);P_PINP(J),XP(D)::B(K)+S(I),DCHECK,XR(f)
- R(j);XP(L)::B(K)+S(I),XR(j)
- S(b);P_PINP(J),XP(D)::B(K)+S(I),DCHECK,XS(b)
- S(b);XP(E)::B(K)+S(I),XS(b)
- S(k);XP(J)::B(K)+S(I),XS(k)
- P(h);OGATEB,SBLOCK,XB(B)::QAR2(F)
- S(k);::B(K)+S(I),XS(k)
- Refutation
- S(k);
- Try
- P(M);
- Threat
- B(K)+S(I)
- Vars
- R(j);CHECK,XP(J)::B(K)+S(I),XR(j)
- B(g);CHECK,P_PINP(J),XP(D)::B(K)+S(I),DCHECK,XB(g)
- R(f);P_PINP(J),XP(D)::B(K)+S(I),DCHECK,XR(f)
- R(j);XP(L)::B(K)+S(I),XR(j)
- S(b);P_PINP(J),XP(D)::B(K)+S(I),DCHECK,XS(b)
- S(b);XP(E)::B(K)+S(I),XS(b)
- S(k);XP(J)::B(K)+S(I),XS(k)
- P(h);OGATEB,SBLOCK,XB(B)::QAR2(F)
- S(k);::B(K)+S(I),XS(k)
- Refutation
- S(k);
- Try
- Actual
- K(G);S_FLIGHT
- Threat
- B(K)+S(I),DCHECK
- Vars
- R(f);CHECK,XP(D)::B(K)+S(I),DCHECK,XR(f)
- R(j);CHECK,XP(L)::B(K)+S(I),XR(j)
- B(g);CHECK,XP(E)::B(K)+S(I),XB(g)
- P(i);CHECK,XP(J)::B(K)+S(I),XP(i)
- K(d);S_FLIGHT::QAB1(F)
- P(h);OGATEB,SBLOCK,XB(B)::QAR2(F)
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).