MESON Chess Problem Database
Problem Display
PID: 50759 (K2n4/p6r/p1PBP1P1/P2kP3/Q2N3R/1ppNn2B/3q4/1r1R3b w - - 0 1)
Shanshin, Valery Yurevich
1st Prize, Vecherni Kharkov, 1986
#2
13 + 11
| 3297 | FIDE Album (1986-1988) | 1995 |
SOLUTION
- SOUND
- Sets
- 1...Be4
- 2.Sf4#
- 1...Sc4
- 2.Sb4#
- 1...Sxc6
- 2.Qxc6#
- 1...Sxe6
- 2.Bxe6#
- 1...Be4
- Tries
- 1.Sc2?
- threat
- 2.Scb4#
- 2.Sdb4#
- 2.Sf4#
- 2.Rd4#
- 1...Qxc2
- 2.Sb4#
- 2.Sf4#
- 2.Rd4#
- 1...Qxd3
- 2.Sxe3#
- 2.Sb4#
- 2.Rxd3#
- 1...Sxd1
- 2.Scb4#
- 2.Sdb4#
- 2.Rd4#
- 2.Qc4#
- 1...Sxc2
- 2.Sf4#
- 2.Qc4#
- 1...Sxc6
- 2.Sf4#
- 1...Sxe6
- 2.Scb4#
- 2.Sdb4#
- 1...bxc2
- 2.Sf4#
- 2.Rd4#
- 1...Sg4
- 2.Sf4#
- 1...Sf5
- 2.Sf4#
- 2.Qc4#
- 1...Rb7
- 2.Sf4#
- 2.Rd4#
- 1...Rf7
- 2.Scb4#
- 2.Sdb4#
- 2.Rd4#
- 1...Be4
- 2.Sf4#
- 2.Qxe4#
- 1...Sg2
- 2.Scb4#
- 2.Sdb4#
- 2.Rd4#
- 2.Qc4#
- 2.Qe4#
- 1...Sc4
- 2.Scb4#
- 2.Sdb4#
- 2.Rd4#
- 2.Qxc4#
- 1...Rxh4!
- threat
- 1.Se2?
- threat
- 2.Sef4#
- 2.Sb4#
- 2.Sdf4#
- 2.Rd4#
- 1...Qxe2
- 2.Sb4#
- 2.Sf4#
- 2.Rd4#
- 1...Qxd3
- 2.Sxc3#
- 2.Sf4#
- 2.Rxd3#
- 1...Sxd1
- 2.Sb4#
- 2.Rd4#
- 2.Qc4#
- 1...Sxc6
- 2.Sef4#
- 2.Sdf4#
- 1...Sxe6
- 2.Sb4#
- 1...Sg4
- 2.Sdf4#
- 1...Sf5
- 2.Sdf4#
- 2.Qc4#
- 1...Rb7
- 2.Sef4#
- 2.Sdf4#
- 2.Rd4#
- 1...Rf7
- 2.Sb4#
- 2.Rd4#
- 1...Be4
- 2.Sef4#
- 2.Sdf4#
- 2.Qxe4#
- 1...Sf1
- 2.Sb4#
- 2.Sdf4#
- 2.Rd4#
- 2.Qc4#
- 1...Sc2
- 2.Sdf4#
- 2.Qc4#
- 1...Sg2
- 2.Sb4#
- 2.Rd4#
- 2.Qc4#
- 2.Qe4#
- 1...Sc4
- 2.Sb4#
- 2.Rd4#
- 2.Qxc4#
- 1...Rxh4!
- threat
- 1.Sxb3?
- threat
- 2.Sb4#
- 2.Sf4#
- 2.Rd4#
- 1...Qxd3
- 2.Rxd3#
- 1...Rxb3
- 2.Sf4#
- 2.Rd4#
- 1...Sxd1
- 2.Sb4#
- 2.Rd4#
- 2.Qc4#
- 1...Sxc6
- 2.Sf4#
- 1...Sxe6
- 2.Sb4#
- 1...Sg4
- 2.Sf4#
- 1...Sf5
- 2.Sf4#
- 2.Qc4#
- 1...Rb7
- 2.Sf4#
- 2.Rd4#
- 1...Rf7
- 2.Sb4#
- 2.Rd4#
- 1...Be4
- 2.Sf4#
- 2.Qxe4#
- 1...Sc2
- 2.Sf4#
- 2.Qc4#
- 1...Sg2
- 2.Sb4#
- 2.Rd4#
- 2.Qc4#
- 2.Qe4#
- 1...Sc4
- 2.Sb4#
- 2.Rd4#
- 2.Qxc4#
- 1...Rxh4!
- threat
- 1.Sf3?
- threat
- 2.Sb4#
- 2.Sf4#
- 2.Rd4#
- 2.Qe4#
- 1...Qxd3
- 2.Rxd3#
- 2.Qe4#
- 1...Bxf3
- 2.Sb4#
- 2.Sf4#
- 2.Rd4#
- 1...Sxd1
- 2.Sb4#
- 2.Rd4#
- 2.Qc4#
- 2.Qe4#
- 1...Sxc6
- 2.Sf4#
- 2.Qe4#
- 1...Sxe6
- 2.Sb4#
- 2.Qe4#
- 1...Sg4
- 2.Sf4#
- 1...Sf5
- 2.Sf4#
- 2.Qc4#
- 1...Rb7
- 2.Sf4#
- 2.Rd4#
- 2.Qe4#
- 1...Rf7
- 2.Sb4#
- 2.Rd4#
- 2.Qe4#
- 1...Sc2
- 2.Sf4#
- 2.Qc4#
- 2.Qe4#
- 1...Sg2
- 2.Sb4#
- 2.Rd4#
- 2.Qc4#
- 2.Qe4#
- 1...Sc4
- 2.Sb4#
- 2.Rd4#
- 2.Qxc4#
- 1...Rxh4!
- threat
- 1.Sb5?
- threat
- 2.Sb4#
- 1...Kxc6
- 2.Sb4#
- 2.Sxc3#
- 2.Sc7#
- 1...Qxd3
- 2.Sxc3#
- 1...Rxh4
- 2.Sc7#
- 1...Sxc6
- 2.Sf4#
- 1...Sf5
- 2.Qc4#
- 1...Be4
- 2.Qxe4#
- 1...Sc2
- 2.Qc4#
- 1...Sg4!
- threat
- 1.Qxb3+?
- 1...Sc4
- 2.Sb4#
- 1...Rxb3!
- 1...Sc4
- 1.Qc4+?
- 1...Sxc4
- 2.Sb4#
- 1...Kxc4!
- 1...Sxc4
- 1.Sc2?
- Keys
- 1.Sf5!
- threat
- 2.Sf4#
- 1...Kxe6
- 2.Sf4#
- 2.Sxe3#
- 1...Qxd3
- 2.Sxe3#
- 1...Rxh4
- 2.Se7#
- 1...Sxd1
- 2.Qc4#
- 1...Sxe6
- 2.Sb4#
- 1...Sg2
- 2.Qc4#
- 1...Sc4
- 2.Qxc4#
- threat
- 1.Sf5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 4
- REMOVED MATES = 2
- Sets
- B(b);SBLOCK::S(B)
- S(f);SBLOCK::S(B)
- S(k);OGATE,XP(I)::QAB1(D),XS(k)
- S(k);OGATE,XP(K)::B(C),XS(k)
- Tries
- Try
- S(E);
- Threat
- DUALS(4)
- Vars
- S(k);XP(I)::S(B)
- S(f);::S(B)
- Refutation
- R(j);XR(F)
- Try
- S(E);
- Threat
- DUALS(4)
- Vars
- S(k);XP(K)::S(B)
- S(f);::S(B)
- Refutation
- R(j);XR(F)
- Try
- S(E);XP(d)
- Threat
- DUALS(3)
- Vars
- Q(c);OGATE,P_SPINQ(c),XS(B)::R(A),XQ(c)
- S(k);XP(I)::S(B)
- S(k);XP(K)::S(B)
- S(f);::S(B)
- Refutation
- R(j);XR(F)
- Try
- S(E);
- Threat
- DUALS(4)
- Vars
- S(f);::S(B)
- Refutation
- R(j);XR(F)
- Try
- S(E);
- Threat
- S(B)
- Vars
- Q(c);N_GUARD,P_SPINQ(c),XS(B)::S(E),XP(e)
- R(j);N_GUARD,XR(F)::S(E)
- S(k);SBLOCK,XP(I)::S(B)
- S(f);N_GUARD::QAB1(D)
- B(b);N_GUARD::QAB1(D),XB(b)
- Refutation
- S(f);
- Try
- Q(D);CHECK,XP(d)
- Vars
- S(f);P_SPINS(f)::S(B)
- Refutation
- R(a);XQ(D)
- Try
- Q(D);CHECK
- Vars
- S(f);SBLOCK,XQ(D)::S(B)
- Refutation
- K(g);P_PINP(I),S_FLIGHT,XQ(D)
- Try
- Actual
- S(E);
- Threat
- S(B)
- Vars
- Q(c);N_GUARD,P_SPINQ(c),XS(B)::S(E),XS(f)
- R(j);N_GUARD,XR(F)::S(E)
- S(f);N_GUARD,XR(A)::QAB1(D)
- S(k);SBLOCK,XP(K)::S(B)
- S(f);N_GUARD::QAB1(D)
- S(f);N_GUARD::QAB1(D),XS(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).