MESON Chess Problem Database
Problem Display
PID: 86546 (4K3/1B6/7b/1p1p1p2/RPkp1pQn/1R6/1B2P2p/N2r1N2 w - - 0 1)
Melnichenko, Viktor Oleksandrovich
Canadian Chess Chat, 1980
#2
10 + 10
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Rxa1
- 2.Sd2#
- 1...Rb1
- 2.Sd2#
- 1...Rc1
- 2.Sd2#
- 1...Re1
- 2.Sd2#
- 1...Rd2
- 2.Sxd2#
- 1...Rd3
- 2.exd3#
- 1...d3
- 2.Se3#
- 1...f3
- 2.Rc3#
- 1...bxa4
- 2.Ba6#
- 1...Rxa1
- Tries
- 1.Se3+?
- 1...fxe3
- 2.Rc3#
- 1...dxe3!
- 1...fxe3
- 1.Ra6?
- threat
- 2.Rc6#
- 1...Rxa1
- 2.Sd2#
- 1...Bf8!
- threat
- 1.Ra8?
- threat
- 2.Rc8#
- 1...Rxa1
- 2.Sd2#
- 1...Bf8!
- threat
- 1.Qf3?
- threat
- 2.Bxd5#
- 2.Qxd5#
- 1...bxa4
- 2.Ba6#
- 2.Qxd5#
- 1...h1Q
- 2.Bxd5#
- 1...h1B
- 2.Bxd5#
- 1...Sxf3!
- threat
- 1.Qxf5?
- threat
- 2.Bxd5#
- 2.Qc2#
- 2.Qc8#
- 2.Qxd5#
- 1...Rxa1
- 2.Sd2#
- 2.Bxd5#
- 2.Qc2#
- 2.Qd3#
- 2.Qxd5#
- 1...bxa4
- 2.Ba6#
- 2.Qxd5#
- 1...h1Q
- 2.Qc2#
- 2.Qc8#
- 1...h1B
- 2.Qc2#
- 2.Qc8#
- 1...Bf8
- 2.Bxd5#
- 2.Qc2#
- 2.Qxd5#
- 1...Rc1
- 2.Sd2#
- 2.Bxd5#
- 2.Qd3#
- 2.Qc8#
- 2.Qxd5#
- 1...Rd2
- 2.Sxd2#
- 2.Bxd5#
- 2.Qc8#
- 2.Qxd5#
- 1...Rd3
- 2.Bxd5#
- 2.Qxd3#
- 2.Qc8#
- 2.Qxd5#
- 2.exd3#
- 1...d3
- 2.Bxd5#
- 2.Qc8#
- 2.Qxd5#
- 1...Sxf5!
- threat
- 1.Qxf4?
- threat
- 2.Se3#
- 2.Rc3#
- 2.Qc7#
- 1...Rxa1
- 2.Sd2#
- 2.Rc3#
- 1...Rxf1
- 2.Rc3#
- 2.Qc7#
- 2.Qxd4#
- 1...bxa4
- 2.Ba6#
- 1...Rc1
- 2.Sd2#
- 2.Se3#
- 2.Qc7#
- 2.Qxd4#
- 1...Rd3
- 2.Qc7#
- 2.exd3#
- 1...Bf8
- 2.Se3#
- 2.Rc3#
- 1...Sg2
- 2.Rc3#
- 2.Qc7#
- 1...Bxf4!
- threat
- 1.Qg7?
- threat
- 2.Qc7#
- 1...Rxa1
- 2.Sd2#
- 1...bxa4
- 2.Ba6#
- 1...Bxg7!
- threat
- 1.Se3+?
- Keys
- 1.e4!
- threat
- 2.Bxd5#
- 1...bxa4
- 2.Ba6#
- 1...dxe4
- 2.Qg8#
- 1...fxe4
- 2.Qc8#
- 1...dxe4 ep
- 2.Sxe3#
- 1...fxe4 ep
- 2.Rc3#
- threat
- 1.e4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 8
- Sets
- R(a);N_GUARD,XS(A)::S(B)
- R(a);N_GUARD::S(B)
- R(a);N_GUARD,P_PINP(D)::S(B)
- R(a);N_GUARD::S(B),XR(a)
- R(a);OGATE::P(D),XR(a)
- P(d);N_GUARD,P_SPINP(e)::S(B)
- P(e);P_SPINP(d)::R1(E)
- P(g);OGATEB,XR(F)::B(I)
- Tries
- Try
- S(B);CHECK
- Vars
- P(e);P_SPINP(d),XS(B)::R1(E)
- Refutation
- P(d);P_SPINP(e),XS(B)
- Try
- R(F);
- Threat
- R(F)
- Vars
- R(a);N_GUARD,XS(A)::S(B)
- Refutation
- B(j);
- Try
- R(F);
- Threat
- R(F)
- Vars
- R(a);N_GUARD,XS(A)::S(B)
- Refutation
- B(j);
- Try
- Q(H);
- Threat
- DUALS(2)
- Vars
- P(b);::B(I),XP(h)
- Refutation
- S(f);XQ(H)
- Try
- Q(H);XP(i)
- Threat
- DUALS(4)
- Refutation
- S(f);XQ(H)
- Try
- Q(H);P_PINP(d),XP(e)
- Threat
- DUALS(3)
- Vars
- P(g);OGATEB,XR(F)::B(I)
- Refutation
- B(j);N_SPINP(d),XQ(H)
- Try
- Q(H);
- Threat
- QAR(H)
- Vars
- R(a);N_GUARD,XS(A)::S(B)
- P(g);OGATEB,XR(F)::B(I)
- Refutation
- B(j);XQ(H)
- Try
- Actual
- P(D);
- Threat
- B(I),XP(h)
- Vars
- P(g);OGATEB,XR(F)::B(I)
- P(h);OGATEB,XP(D)::QAB(H)
- P(i);OGATE,XP(D)::QAR(H)
- P(d);EP,N_GUARD,P_SPINP(e),XP(D)::S(B),XP(d)
- P(e);EP,P_SPINP(d),XP(D)::R1(E)
Developed and maintained by Brian Stephenson.
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