MESON Chess Problem Database
Problem Display
PID: 23921 (B2n1B2/5n2/2NNp3/1Ppk1q1R/2p1p1pr/b1P1Q2r/5P2/1K5b w - - 0 1)
Shanshin, Valery Yurevich
1st Prize, Lebedkin MT, 1996
#2
10 + 13
| 5417 | FIDE Album (1995-1997) | 2004 |
SOLUTION
- SOUND
- Sets
- 1...Qe5
- 2.Sb4#
- 2.Sxd8#
- 1...Rh2
- 2.Qd2#
- 1...Rf3
- 2.Qxe4#
- 1...Bf3
- 2.Qd2#
- 1...Se5
- 2.Sb4#
- 1...g3
- 2.Qd2#
- 1...e5
- 2.Sxd8#
- 1...Qe5
- Tries
- 1.Sxf7?
- threat
- 2.Sb4#
- 2.Se7#
- 2.Scxd8#
- 1...Sxc6
- 2.Bxc6#
- 1...e5
- 2.Scxd8#
- 1...Bb4
- 2.Sxb4#
- 2.Se7#
- 2.Scxd8#
- 1...Sb7
- 2.Se7#
- 1...Sxf7!
- threat
- 1.Sc8?
- threat
- 2.Sb6#
- 1...e5
- 2.Sxd8#
- 1...Sxc6!
- threat
- 1.Se8?
- threat
- 2.Sf6#
- 2.Sc7#
- 1...Rxh5
- 2.Sc7#
- 1...e5
- 2.Sxd8#
- 2.Sc7#
- 1...Se5
- 2.Sb4#
- 2.Se7#
- 2.Sc7#
- 1...Sg5
- 2.Sc7#
- 1...Sxc6!
- threat
- 1.Rxf5+?
- 1...Se5
- 2.Sb4#
- 2.Sxd8#
- 2.Rxe5#
- 1...e5
- 2.Sxd8#
- 1...exf5!
- 1...Se5
- 1.f4?
- threat
- 2.Sb4#
- 2.Sxd8#
- 1...exf4 ep+
- 2.Qe4#
- 1...Sxd6
- 2.Sb4#
- 2.Se7#
- 1...Sxc6
- 2.Bxc6#
- 1...gxf4 ep
- 2.Qd2#
- 1...e5
- 2.Sxd8#
- 1...Bb4
- 2.Sxb4#
- 2.Sxd8#
- 1...Se5
- 2.Sb4#
- 1...Sb7!
- threat
- 1.Sxf7?
- Keys
- 1.f3!
- threat
- 2.Qd2#
- 2.Qxe4#
- 1...exf3+
- 2.Qe4#
- 1...Rxf3
- 2.Qxe4#
- 1...Rxh5
- 2.Qd2#
- 1...Bxf3
- 2.Qd2#
- 1...Sxd6
- 2.Qd2#
- 1...Sxc6
- 2.Qxe4#
- 1...gxf3
- 2.Qd2#
- 1...e5
- 2.Sxd8#
- 1...Rh2
- 2.Qxe4#
- 1...Bc1
- 2.Qxe4#
- 1...Se5
- 2.Sb4#
- 1...Sg5
- 2.Qd2#
- 1...g3
- 2.Qd2#
- threat
- 1.f3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 7
- REMOVED MATES = 0
- Sets
- R(c);N_GUARD::QAR(D)
- R(c);S_CUTB(a)::QAB1(D),XP(e)
- B(a);S_CUTR(c)::QAR(D)
- S(l);N_SPINQ(j),SBLOCK::B(I)+S(G),DCHECK
- P(f);S_CUTR(c)::QAR(D)
- P(k);N_SPINQ(j),SBLOCK::B(I)+S(G),XS(m)
- Tries
- Try
- S(H);XS(l)
- Threat
- DUALS(3)
- Vars
- S(m);OGATE,P_SPINS(m),XS(G)::B(I),XS(m)
- P(k);N_SPINQ(j)::B(I)+S(G),XS(m)
- S(m);::S(G)
- Refutation
- S(m);XS(H)
- Try
- S(H);
- Threat
- S(H)
- Vars
- P(k);N_SPINQ(j),SBLOCK::B(I)+S(G),XS(m)
- Refutation
- S(m);P_SPINS(m),XS(G)
- Try
- S(H);
- Threat
- DUALS(2)
- Vars
- R(g);N_SPINQ(j),XR(F)::S(H)
- S(l);N_SPINQ(j)::S(H)
- Refutation
- S(m);P_SPINS(m),XS(G)
- Try
- R(F);CHECK,XQ(j)
- Vars
- P(k);P_SPINP(k)::B(I)+S(G),XS(m)
- Refutation
- P(k);XR(F)
- Try
- P(B);
- Threat
- DUALS(2)
- Vars
- P(e);CHECK,EP,S_CUTB(a),XP(B)::QAB1(D)
- S(m);OGATE,P_SPINS(m),XS(G)::B(I),XS(m)
- P(f);EP,S_CUTR(c),XP(B)::QAR(D)
- P(k);N_SPINQ(j)::B(I)+S(G),XS(m)
- S(l);N_SPINQ(j)::B(I)+S(G),DCHECK
- Refutation
- S(m);
- Try
- Actual
- P(B);
- Threat
- DUALS(2)
- Vars
- P(e);CHECK,XP(B)::QAB1(D)
- R(c);XP(B)::QAB1(D),XP(e)
- R(g);N_SPINQ(j),XR(F)::QAR(D)
- B(a);XP(B)::QAR(D)
- S(l);XS(H)::QAR(D)
- S(m);P_SPINS(m),XS(G)::QAB1(D),XP(e)
- P(f);XP(B)::QAR(D)
- P(k);N_SPINQ(j),SBLOCK::B(I)+S(G),XS(m)
- R(c);::QAB1(D),XP(e)
- B(b);::QAB1(D),XP(e)
- S(l);N_SPINQ(j),SBLOCK::B(I)+S(G),DCHECK
- S(l);N_SPINQ(j)::QAR(D)
- P(f);::QAR(D)
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).