MESON Chess Problem Database
Problem Display
PID: 253053 (3QBK2/5p2/2Np3n/3kBP2/1b2N3/3P4/4n3/8 w - - 0 1)
Antonov, Yuri Mikhailovich
Probleemblad, 1983
#2
8 + 6
SOLUTION
- SOUND
- Sets
- 1...Be1
- 2.Qxd6#
- 1...Bd2
- 2.Qxd6#
- 1...Bc3
- 2.Qxd6#
- 1...Ba5
- 2.Qxa5#
- 2.Qxd6#
- 1...Bc5
- 2.Sf6#
- 1...Be1
- Tries
- 1.Sc3+?
- 1...Kc5
- 2.Bxd6#
- 1...Bxc3
- 2.Qxd6#
- 1...Sxc3!
- 1...Kc5
- 1.Bxd6?
- threat
- 2.Sf6#
- 2.Bxb4#
- 2.Bc5#
- 1...Bxd6+
- 2.Qxd6#
- 1...Be1
- 2.Sf6#
- 2.Bh2#
- 2.Ba3#
- 2.Bg3#
- 2.Bb4#
- 2.Bf4#
- 2.Bc5#
- 2.Be5#
- 2.Bc7#
- 2.Be7#
- 2.Bb8#
- 1...Bd2
- 2.Sf6#
- 2.Bh2#
- 2.Ba3#
- 2.Bg3#
- 2.Bb4#
- 2.Bf4#
- 2.Bc5#
- 2.Be5#
- 2.Bc7#
- 2.Be7#
- 2.Bb8#
- 1...Ba3
- 2.Sf6#
- 2.Bxa3#
- 2.Bb4#
- 2.Bc5#
- 1...Bc3
- 2.Bh2#
- 2.Ba3#
- 2.Bg3#
- 2.Bb4#
- 2.Bf4#
- 2.Bc5#
- 2.Be5#
- 2.Bc7#
- 2.Be7#
- 2.Bb8#
- 1...Ba5
- 2.Sf6#
- 2.Bc7#
- 2.Qxa5#
- 1...Bc5
- 2.Sf6#
- 2.Bxc5#
- 1...Sg4
- 2.Bxb4#
- 2.Bc5#
- 1...Sg8
- 2.Bxb4#
- 2.Bc5#
- 1...f6
- 2.Sxf6#
- 2.Bxb4#
- 2.Bc5#
- 1...Sxf5!
- threat
- 1.Bf6?
- threat
- 2.Sxb4#
- 2.Se7#
- 1...Be1
- 2.Se7#
- 2.Qxd6#
- 1...Bd2
- 2.Se7#
- 2.Qxd6#
- 1...Ba3
- 2.Se7#
- 1...Bc3
- 2.Se7#
- 2.Qxd6#
- 1...Ba5
- 2.Se7#
- 2.Qxa5#
- 2.Qxd6#
- 1...Bc5
- 2.Se7#
- 1...Sg8
- 2.Sxb4#
- 1...Sxf5!
- threat
- 1.Qa5+?
- 1...Bc5
- 2.Sf6#
- 2.Qa2#
- 1...Bxa5!
- 1...Bc5
- 1.Qf6?
- threat
- 2.Sxb4#
- 2.Se7#
- 1...Sxf5
- 2.Sxb4#
- 2.Qxf7#
- 1...Be1
- 2.Se7#
- 2.Qxd6#
- 1...Bd2
- 2.Se7#
- 2.Qxd6#
- 1...Ba3
- 2.Se7#
- 1...Bc3
- 2.Se7#
- 2.Qxd6#
- 1...Ba5
- 2.Se7#
- 2.Qxd6#
- 1...Bc5
- 2.Se7#
- 1...Sg8
- 2.Sxb4#
- 2.Qxf7#
- 1...dxe5+!
- threat
- 1.Qe7?
- threat
- 2.Sxb4#
- 1...dxe5
- 2.Sf6#
- 1...Be1
- 2.Qxd6#
- 1...Bd2
- 2.Qxd6#
- 1...Bc3
- 2.Qxd6#
- 1...Ba5
- 2.Qxd6#
- 1...Bc5
- 2.Sf6#
- 1...Ba3!
- threat
- 1.Sc3+?
- Keys
- 1.Qb6!
- threat
- 2.Sf6#
- 1...dxe5+
- 2.Sxb4#
- 1...Sxf5
- 2.Bxf7#
- 1...Sg4
- 2.Bxf7#
- 1...Sg8
- 2.Bxf7#
- 1...f6
- 2.Sxf6#
- threat
- 1.Qb6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 4
- Sets
- B(b);N_GUARD::QAR1(F),XP(d)
- B(b);SBLOCK::S(B)
- Tries
- Try
- S(B);CHECK
- Vars
- K(c);N_SPINP(d),P-FLIGHT,S_CUTB(b),S_CUTS(a)::B(C),XP(d)
- B(b);XS(B)::QAR1(F),XP(d)
- Refutation
- S(a);XS(B)
- Try
- B(C);P_SPINB(C),XP(d)
- Threat
- DUALS(3)
- Vars
- B(b);CHECK,OGATE,P_SPINB(b),XB(C)::QAR1(F),XB(b)
- Refutation
- S(e);XP(D)
- Try
- B(C);
- Threat
- DUALS(2)
- Vars
- B(b);::S(E)
- S(e);::S(E),XB(b)
- Refutation
- S(e);XP(D)
- Try
- Q(F);CHECK,N_PINP(d)
- Refutation
- B(b);XQ(F)
- Try
- Q(F);N_PINP(d)
- Threat
- DUALS(2)
- Vars
- B(b);::S(E)
- Refutation
- P(d);CHECK,XB(C)
- Try
- Q(F);N_PINP(d)
- Threat
- S(E),XB(b)
- Vars
- P(d);P_PINQ(F),XB(C)::S(B)
- B(b);N_GUARD::QAR1(F),XP(d)
- B(b);SBLOCK::S(B)
- Refutation
- B(b);
- Try
- Actual
- Q(F);N_PINP(d)
- Threat
- S(B)
- Vars
- P(d);CHECK,SBLOCK,XB(C)::S(E),XB(b)
- S(e);N_GUARD,XP(D)::B(G),XP(f)
- S(e);N_GUARD::B(G),XP(f)
- P(f);::S(B),XP(f)
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