MESON Chess Problem Database
Problem Display
PID: 120656 (2K2b2/8/1Q2B3/2p1k1r1/3N4/3Rp1N1/bq4n1/B4R2 w - - 0 1)
Levinson, VV
1st Prize, Havel MT, 1960-1961
#2
8 + 8
| 274 | diagrammes | 1973 |
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Qc2
- 2.Sxc2#
- 1...Qe2
- 2.Sc2#
- 2.Sdxe2#
- 1...Qf2
- 2.Sde2#
- 1...Qb3
- 2.Sxb3#
- 1...Qb5
- 2.Sb3#
- 2.Sxb5#
- 1...Rg4
- 2.Rf5#
- 1...Rf5
- 2.Rxf5#
- 1...Rg6
- 2.Rf5#
- 1...Rg7
- 2.Rf5#
- 1...Rg8
- 2.Rf5#
- 1...Bxe6+
- 2.Qxe6#
- 1...Bh6
- 2.Qc7#
- 1...Bg7
- 2.Qc7#
- 1...Qc2
- Tries
- 1.Bxa2?
- threat
- 2.Sc6#
- 2.Qe6#
- 2.Qf6#
- 1...Qxd4
- 2.Qe6#
- 2.Qf6#
- 1...Qxb6
- 2.Sb5#
- 2.Sc6#
- 1...Rxg3
- 2.Qe6#
- 1...cxd4
- 2.Qe6#
- 2.Qf6#
- 1...Qf2
- 2.Sde2#
- 1...Qb3
- 2.Sxb3#
- 1...c4
- 2.Qe6#
- 1...Rf5
- 2.Rxf5#
- 2.Qe6#
- 1...Rg6
- 2.Rf5#
- 1...Bd6
- 2.Sc6#
- 1...Be7
- 2.Sc6#
- 2.Qe6#
- 1...Bg7
- 2.Sc6#
- 2.Qxc5#
- 2.Qc7#
- 2.Qe6#
- 1...Sf4
- 2.Sf3#
- 1...Qxa2!
- threat
- 1.Bb3?
- threat
- 2.Sc6#
- 2.Qe6#
- 2.Qf6#
- 1...Qxd4
- 2.Qe6#
- 2.Qf6#
- 1...Qxb3
- 2.Sxb3#
- 1...Rxg3
- 2.Qe6#
- 1...cxd4
- 2.Qe6#
- 2.Qf6#
- 1...Qf2
- 2.Sde2#
- 1...c4
- 2.Qe6#
- 1...Rf5
- 2.Rxf5#
- 2.Qe6#
- 1...Rg6
- 2.Rf5#
- 1...Bd6
- 2.Sc6#
- 1...Be7
- 2.Sc6#
- 2.Qe6#
- 1...Bg7
- 2.Sc6#
- 2.Qxc5#
- 2.Qc7#
- 2.Qe6#
- 2.Qb8#
- 1...Sf4
- 2.Sf3#
- 1...Bxb3!
- threat
- 1.Bc4?
- threat
- 2.Sc6#
- 2.Qe6#
- 2.Qf6#
- 1...Qxd4
- 2.Qe6#
- 2.Qf6#
- 1...Qxb6
- 2.Sb3#
- 2.Sb5#
- 2.Sc6#
- 1...Rxg3
- 2.Qe6#
- 1...cxd4
- 2.Qe6#
- 2.Qf6#
- 1...Qf2
- 2.Sde2#
- 1...Rf5
- 2.Rxf5#
- 2.Qe6#
- 1...Rg6
- 2.Rf5#
- 1...Bd6
- 2.Sc6#
- 1...Be7
- 2.Sc6#
- 2.Qe6#
- 1...Bg7
- 2.Sc6#
- 2.Qxc5#
- 2.Qc7#
- 2.Qe6#
- 1...Sf4
- 2.Sf3#
- 1...Bxc4!
- threat
- 1.Qxc5+?
- 1...Bd5
- 2.Qxd5#
- 1...Bxc5!
- 1...Bd5
- 1.Bxa2?
- Keys
- 1.Bd5!
- threat
- 2.Qe6#
- 1...Kxd5
- 2.Qe6#
- 1...Qxb6
- 2.Sb5#
- 1...Bxd5
- 2.Qf6#
- 1...Qf2
- 2.Sde2#
- 1...Rg6
- 2.Rf5#
- 1...Bd6
- 2.Sc6#
- 1...Sf4
- 2.Sf3#
- threat
- 1.Bd5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 9
- Sets
- Q(b);::B(A)+S(E),XQ(b)
- Q(b);::B(A)+S(E)
- R(g);N_GUARD::R1(B)
- R(g);N_GUARD::R1(B),XR(g)
- B(a);CHECK,OGATE,XB(G)::QAR1(F),XB(a)
- B(h);N_GUARD::QAB(F)
- Tries
- Try
- B(G);XB(a)
- Threat
- DUALS(3)
- Vars
- R(g);XS(D)::QAR1(F)
- Q(b);::B(A)+S(E)
- Q(b);::B(A)+S(E),XQ(b)
- P(e);::QAR1(F)
- R(g);N_GUARD::R1(B)
- B(h);::S(E)
- S(c);SBLOCK::S(E)
- Refutation
- Q(b);XB(G)
- Try
- B(G);
- Threat
- DUALS(3)
- Vars
- Q(b);XB(G)::B(A)+S(E),XQ(b)
- R(g);XS(D)::QAR1(F)
- Q(b);::B(A)+S(E)
- P(e);::QAR1(F)
- R(g);N_GUARD::R1(B)
- B(h);::S(E)
- S(c);SBLOCK::S(E)
- Refutation
- B(a);XB(G)
- Try
- B(G);
- Threat
- DUALS(3)
- Vars
- R(g);XS(D)::QAR1(F)
- Q(b);::B(A)+S(E)
- R(g);N_GUARD::R1(B)
- B(h);::S(E)
- S(c);SBLOCK::S(E)
- Refutation
- B(a);XB(G)
- Try
- Q(F);CHECK,XP(e)
- Vars
- B(a);N_GUARD,P_SPINB(a)::QAR1(F),XB(a)
- Refutation
- B(h);XQ(F)
- Try
- Actual
- B(G);
- Threat
- QAR1(F)
- Vars
- K(f);P-FLIGHT,XB(G)::QAB1(F)
- Q(b);XQ(F)::B(A)+S(E)
- B(a);SBLOCK,XB(G)::QAB1(F)
- Q(b);::B(A)+S(E)
- R(g);N_GUARD::R1(B)
- B(h);SBLOCK::S(E)
- S(c);SBLOCK::S(E)
Developed and maintained by Brian Stephenson.
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