MESON Chess Problem Database
Problem Display
PID: 54426 (1n3N2/3Q2q1/3B3r/b1PkP3/1R1N2P1/2PBpr2/8/4Kb2 w - - 0 1)
Pilchenko, Viacheslav Karlovich
1st Prize, Die Schwalbe, 1999/I
#2
11 + 8
| 23 | Die Schwalbe | 2003 |
| 145 | StrateGems | 2004 |
| 56 | The Problemist | 2004 |
SOLUTION
- SOUND
- Sets
- 1...Rh1
- 2.Qe6#
- 1...Rh2
- 2.Qe6#
- 1...Rh3
- 2.Qe6#
- 1...Rh4
- 2.Qe6#
- 1...Rh5
- 2.Qe6#
- 1...Rxd6
- 2.Qxd6#
- 1...Re6
- 2.Qxe6#
- 1...Rh7
- 2.Qe6#
- 1...Rh8
- 2.Qe6#
- 1...Sa6
- 2.Qc6#
- 1...Sc6
- 2.Qxc6#
- 1...Rh1
- Tries
- 1.Sc2?
- threat
- 2.Be4#
- 2.Rd4#
- 2.c4#
- 1...Qxe5
- 2.c4#
- 1...Qxd7
- 2.Be4#
- 1...Rxd6
- 2.Qxd6#
- 1...Bxd3
- 2.Rd4#
- 1...Bxb4
- 2.Sxb4#
- 1...Sxd7
- 2.Be4#
- 1...Qg6
- 2.Rd4#
- 2.c4#
- 1...Qh7
- 2.Rd4#
- 2.c4#
- 1...Rf4
- 2.Sxe3#
- 1...Sc6
- 2.Be4#
- 2.c4#
- 1...Qxg4!
- threat
- 1.Sf5?
- threat
- 2.Be4#
- 2.Rd4#
- 2.c4#
- 1...Qxe5
- 2.c4#
- 1...Qxg4
- 2.Se7#
- 1...Qxd7
- 2.Be4#
- 1...Rxf5
- 2.Be4#
- 2.Rd4#
- 1...Rxd6
- 2.Qxd6#
- 1...Bxd3
- 2.Rd4#
- 1...Sxd7
- 2.Be4#
- 1...Rf4
- 2.Sxe3#
- 1...Sc6
- 2.Be4#
- 2.c4#
- 1...Bxb4!
- threat
- 1.Sc6?
- threat
- 2.Be4#
- 2.Rd4#
- 2.c4#
- 1...Qxe5
- 2.c4#
- 1...Qxg4
- 2.Se7#
- 1...Qxd7
- 2.Be4#
- 1...Rxd6
- 2.Qxd6#
- 1...Bxd3
- 2.Rd4#
- 1...Bxb4
- 2.Sxb4#
- 1...Sxc6
- 2.Be4#
- 1...Sxd7
- 2.Be4#
- 1...Qg6
- 2.Se7#
- 2.Rd4#
- 2.c4#
- 1...Qh7
- 2.Rd4#
- 2.c4#
- 1...Rf4!
- threat
- 1.Sfe6?
- threat
- 2.c4#
- 1...Rxe6
- 2.Qxe6#
- 1...Bxb4
- 2.Sc7#
- 1...Bxd3!
- threat
- 1.Be7+?
- 1...Kxe5
- 2.Sxf3#
- 1...Rd6
- 2.Qxd6#
- 1...Sxd7!
- 1...Kxe5
- 1.Bxb8+?
- 1...Kxc5
- 2.Sb3#
- 2.Rb5#
- 2.Qb5#
- 1...Rd6
- 2.Qxd6#
- 1...Qxd7!
- 1...Kxc5
- 1.Qb5?
- threat
- 2.Qc4#
- 2.c6#
- 1...Qxe5
- 2.Qc4#
- 1...Rxd6
- 2.cxd6#
- 2.c6#
- 1...Bxb4
- 2.Qc4#
- 1...Qa7
- 2.Qc4#
- 1...Qb7
- 2.Qc4#
- 1...Bb6
- 2.Qc4#
- 2.cxb6#
- 1...Sa6
- 2.Qc4#
- 2.Qc6#
- 1...Sc6
- 2.Qc4#
- 2.Qxc6#
- 1...Sd7
- 2.Qc4#
- 2.Qc6#
- 2.Qb7#
- 1...Bxd3!
- threat
- 1.Qb7+?
- 1...Sc6
- 2.Qxc6#
- 1...Qxb7!
- 1...Sc6
- 1.Sc2?
- Keys
- 1.Sde6!
- threat
- 2.Be4#
- 2.Rd4#
- 2.c4#
- 1...Qxe5
- 2.c4#
- 1...Qxg4
- 2.Bxb8#
- 1...Qxd7
- 2.Be4#
- 1...Rxe6
- 2.Be4#
- 2.Rd4#
- 1...Bxd3
- 2.Rd4#
- 1...Bxb4
- 2.Sc7#
- 1...Sxd7
- 2.Be4#
- 1...Rf4
- 2.Sxf4#
- 1...Qg6
- 2.Bxb8#
- 2.Rd4#
- 2.c4#
- 1...Qh7
- 2.Rd4#
- 2.c4#
- 1...Sc6
- 2.Be4#
- 2.c4#
- threat
- 1.Sde6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 7
- REMOVED MATES = 11
- Sets
- R(f);N_GUARD::QAB1(J)
- R(f);OGATE,P_SPINR(f),XB(I)::QAR1(J),XR(f)
- R(f);N_GUARD::QAB1(J),XR(f)
- S(h);N_GUARD::QAB1(J)
- S(h);N_GUARD::QAB1(J),XS(h)
- Tries
- Try
- S(E);
- Threat
- DUALS(3)
- Vars
- Q(g);XP(H)::P(B)
- Q(g);XQ(J)::B(C)
- R(f);OGATE,P_SPINR(f),XB(I)::QAR1(J),XR(f)
- B(a);XB(C)::R1(D)
- B(d);P_PINP(B),XR(D)::S(E),XB(d)
- S(h);XQ(J)::B(C)
- R(c);N_GUARD::S(E),XP(b)
- Refutation
- Q(g);XP(F)
- Try
- S(E);
- Threat
- DUALS(3)
- Vars
- Q(g);XP(H)::P(B)
- Q(g);N_GUARD,XP(F)::S(E)
- Q(g);XQ(J)::B(C)
- R(f);OGATE,P_SPINR(f),XB(I)::QAR1(J),XR(f)
- B(a);XB(C)::R1(D)
- S(h);XQ(J)::B(C)
- R(c);N_GUARD::S(E),XP(b)
- Refutation
- B(d);P_PINP(B),XR(D)
- Try
- S(E);
- Threat
- DUALS(3)
- Vars
- Q(g);XP(H)::P(B)
- Q(g);N_GUARD,XP(F)::S(E)
- Q(g);XQ(J)::B(C)
- R(f);OGATE,P_SPINR(f),XB(I)::QAR1(J),XR(f)
- B(a);XB(C)::R1(D)
- B(d);P_PINP(B),XR(D)::S(E),XB(d)
- S(h);XS(E)::B(C)
- S(h);XQ(J)::B(C)
- Refutation
- R(c);
- Try
- S(K);
- Threat
- P(B)
- Vars
- R(f);OGATE,XS(K)::QAB1(J),XR(f)
- B(d);N_GUARD,P_PINP(B),XR(D)::S(K)
- Refutation
- B(a);XB(C)
- Try
- B(I);CHECK
- Vars
- K(e);P-FLIGHT,XP(H)::S(E),XR(c)
- R(f);N_GUARD,P_SPINR(f)::QAR1(J),XR(f)
- Refutation
- S(h);XQ(J)
- Try
- B(I);CHECK,XS(h)
- Vars
- R(f);N_GUARD,P_SPINR(f)::QAR1(J),XR(f)
- Refutation
- Q(g);XQ(J)
- Try
- Q(J);
- Threat
- DUALS(2)
- Vars
- Q(g);XP(H)::QAB1(J)
- B(d);P_PINP(B),XR(D)::QAB1(J)
- Q(g);::QAB1(J)
- Refutation
- B(a);XB(C)
- Try
- Q(J);CHECK
- Vars
- S(h);N_GUARD,P_SPINS(h)::QAB1(J),XS(h)
- Refutation
- Q(g);XQ(J)
- Try
- Actual
- S(E);
- Threat
- DUALS(3)
- Vars
- Q(g);XP(H)::P(B)
- Q(g);N_GUARD,XP(F)::QAR(J)+B(I),XS(h)
- Q(g);XQ(J)::B(C)
- B(a);XB(C)::R1(D)
- B(d);N_GUARD,P_PINP(B),XR(D)::S(E)
- S(h);XQ(J)::B(C)
- R(c);N_GUARD::S(E),XR(c)
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).