MESON Chess Problem Database
Problem Display
PID: 225707 (8/K1Q2R2/8/3B2q1/2nk2rN/1RN1p3/2P3br/8 w - - 0 1)
Postnikov, Oleksandr Borisovich
Praca, 1994
#2
8 + 7
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Qh6
- 2.Sf5#
- 1...Qe7
- 2.Sf5#
- 1...Qd8
- 2.Sf5#
- 1...Qe5
- 2.Qxc4#
- 1...Qf5
- 2.Sxf5#
- 1...Qg7
- 2.Sf5#
- 1...Qg8
- 2.Sf5#
- 1...Bf1
- 2.Sf3#
- 1...Bf3
- 2.Sxf3#
- 1...Bh3
- 2.Sf3#
- 1...Se5
- 2.Qb6#
- 1...Qh6
- Tries
- 1.Rf5?
- threat
- 2.Se2#
- 2.Sb5#
- 2.Qxc4#
- 1...Qxf5
- 2.Sxf5#
- 1...e2
- 2.Sxe2#
- 2.Sb5#
- 1...Qe7
- 2.Se2#
- 2.Sb5#
- 1...Qg7
- 2.Se2#
- 2.Sb5#
- 1...Bf1
- 2.Sb5#
- 2.Sf3#
- 1...Bh1
- 2.Sb5#
- 2.Qxc4#
- 1...Bf3
- 2.Sb5#
- 2.Sxf3#
- 2.Qxc4#
- 1...Bh3
- 2.Sb5#
- 2.Sf3#
- 2.Qxc4#
- 1...Be4
- 2.Sb5#
- 2.Qxc4#
- 1...Sb2
- 2.Se2#
- 2.Sb5#
- 2.Qb6#
- 1...Sd2
- 2.Se2#
- 2.Sb5#
- 2.Qb6#
- 1...Sa3
- 2.Se2#
- 2.Qb6#
- 1...Sa5
- 2.Se2#
- 2.Sb5#
- 2.Qb6#
- 1...Se5
- 2.Qb6#
- 1...Sb6
- 2.Se2#
- 2.Sb5#
- 2.Qxb6#
- 1...Sd6
- 2.Se2#
- 2.Qb6#
- 1...Bxd5!
- threat
- 1.Rd7?
- threat
- 2.Se2#
- 2.Sb5#
- 1...Qxd5
- 2.Sf5#
- 1...Bxd5
- 2.Sf3#
- 1...e2
- 2.Sxe2#
- 2.Sb5#
- 1...Bf1
- 2.Sb5#
- 2.Sf3#
- 1...Bh1
- 2.Sb5#
- 1...Bf3
- 2.Sb5#
- 2.Sxf3#
- 1...Bh3
- 2.Sb5#
- 2.Sf3#
- 1...Be4
- 2.Sb5#
- 1...Sa3
- 2.Se2#
- 1...Sd6!
- threat
- 1.Rf5?
- Keys
- 1.Re7!
- threat
- 2.Qxc4#
- 1...Qxe7
- 2.Sf5#
- 1...Qxd5
- 2.Se2#
- 1...Bxd5
- 2.Sb5#
- 1...Bf1
- 2.Sf3#
- 1...Sb2
- 2.Qb6#
- 1...Sd2
- 2.Qb6#
- 1...Sa3
- 2.Qb6#
- 1...Sa5
- 2.Qb6#
- 1...Se5
- 2.Qb6#
- 1...Sb6
- 2.Qxb6#
- 1...Sd6
- 2.Qb6#
- threat
- 1.Re7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 8
- REMOVED MATES = 8
- Sets
- Q(g);N_GUARD::S(D)
- Q(g);N_GUARD,P_PINQ(G)::S(D)
- Q(g);SBLOCK::QAR1(G),XS(d)
- Q(g);N_GUARD::S(D),XQ(g)
- B(a);N_GUARD::S(D)
- B(a);N_GUARD::S(D),XB(a)
- S(d);N_GUARD,SBLOCK::QAB(G)
- Tries
- Try
- R(H);
- Threat
- DUALS(3)
- Vars
- Q(g);XR(H)::S(D),XQ(g)
- S(d);N_GUARD::QAB(G)
- Refutation
- B(a);XB(E)
- Try
- R(H);
- Threat
- DUALS(2)
- Vars
- Q(g);N_GUARD,P_SPINQ(g),XB(E)::S(D)
- B(a);N_GUARD,P_SPINB(a),XB(E)::S(D)
- B(a);::S(C)
- S(d);::S(C)
- Refutation
- S(d);
- Try
- Actual
- R(H);
- Threat
- QAR1(G),XS(d)
- Vars
- Q(g);N_GUARD,P_PINQ(G),XR(H)::S(D)
- Q(g);SBLOCK,XB(E)::S(C)
- B(a);SBLOCK,XB(E)::S(C)
- B(a);N_GUARD::S(D)
- S(d);N_GUARD::QAB(G)
- S(d);N_GUARD::QAB(G),XS(d)
Developed and maintained by Brian Stephenson.
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