MESON Chess Problem Database
Problem Display
PID: 23282 (8/4p3/1Q6/2Nk4/p7/P6B/2NBK1P1/8 w - - 0 1)
Zarhs, Aleksandr
The Problemist, 1997
#2
8 + 3
SOLUTION
- SOUND
- Sets
- 1...Kc4
- 2.Be6#
- 1...Ke5
- 2.Qe6#
- 1...e5
- 2.Be6#
- 1...Kc4
- Tries
- 1.Kd1?
- 1...Kc4
- 2.Be6#
- 1...Ke5
- 2.Qe6#
- 1...e5
- 2.Be6#
- 1...e6!
- 1...Kc4
- 1.Ke1?
- 1...Kc4
- 2.Be6#
- 1...Ke5
- 2.Qe6#
- 1...e5
- 2.Be6#
- 1...e6!
- 1...Kc4
- 1.Kf1?
- 1...Kc4
- 2.Be6#
- 1...Ke5
- 2.Qe6#
- 1...e5
- 2.Be6#
- 1...e6!
- 1...Kc4
- 1.Kf2?
- 1...Kc4
- 2.Be6#
- 1...Ke5
- 2.Qe6#
- 1...e5
- 2.Be6#
- 1...e6!
- 1...Kc4
- 1.Kd3?
- 1...Ke5
- 2.Qe6#
- 1...e5
- 2.Se3#
- 2.Sb4#
- 2.Be6#
- 1...e6!
- 1...Ke5
- 1.Ke3?
- 1...Kc4
- 2.Be6#
- 1...Ke5
- 2.Qe6#
- 1...e5
- 2.Be6#
- 1...e6!
- 1...Kc4
- 1.Kf3?
- 1...Kc4
- 2.Be6#
- 1...Ke5
- 2.Qe6#
- 1...e5
- 2.Be6#
- 1...e6!
- 1...Kc4
- 1.Sd3?
- threat
- 2.Qe6#
- 1...Kc4
- 2.Se3#
- 2.Be6#
- 1...Ke4
- 2.Qd4#
- 2.Qc6#
- 2.Qe6#
- 2.Qb7#
- 1...e6
- 2.Qxe6#
- 1...e5!
- threat
- 1.Sxa4?
- threat
- 2.Qe6#
- 1...Kc4
- 2.Se3#
- 2.Be6#
- 1...Ke4
- 2.Qd4#
- 2.Qe6#
- 1...Ke5
- 2.Qd4#
- 2.Qe6#
- 1...e6
- 2.Qxe6#
- 1...e5!
- threat
- 1.Se4?
- threat
- 2.Qe6#
- 1...Kc4
- 2.Se3#
- 2.Be6#
- 1...Kxe4
- 2.Qd4#
- 2.Qe6#
- 1...Ke5
- 2.Qd4#
- 2.Qe6#
- 1...e6
- 2.Qxe6#
- 1...e5!
- threat
- 1.Sa6?
- threat
- 2.Qe6#
- 1...Kc4
- 2.Se3#
- 2.Be6#
- 1...Ke4
- 2.Qd4#
- 2.Qe6#
- 1...Ke5
- 2.Qd4#
- 2.Qe6#
- 1...e6
- 2.Qxe6#
- 1...e5!
- threat
- 1.Sb7?
- threat
- 2.Qe6#
- 1...Kc4
- 2.Se3#
- 2.Be6#
- 1...Ke4
- 2.Qd4#
- 2.Qe6#
- 1...Ke5
- 2.Qd4#
- 2.Qe6#
- 1...e6
- 2.Qxe6#
- 1...e5!
- threat
- 1.Sd7?
- threat
- 2.Qe6#
- 1...Kc4
- 2.Se3#
- 2.Be6#
- 1...Ke4
- 2.Qd4#
- 2.Qc6#
- 2.Qe6#
- 2.Qb7#
- 1...e6
- 2.Qxe6#
- 1...e5!
- threat
- 1.Bc3?
- threat
- 2.Se3#
- 2.Be6#
- 1...e6
- 2.Se3#
- 2.Bxe6#
- 1...Kc4!
- threat
- 1.Be3?
- threat
- 2.Qe6#
- 1...Ke5
- 2.Qe6#
- 1...e6
- 2.Qxe6#
- 1...Kc4!
- threat
- 1.Bb4?
- threat
- 2.Qe6#
- 1...Kc4
- 2.Be6#
- 1...e6
- 2.Qxe6#
- 1...Ke5!
- threat
- 1.Bf4?
- threat
- 2.Be6#
- 1...e6
- 2.Bxe6#
- 1...Kc4!
- threat
- 1.Bg4?
- 1...Kc4
- 2.Be6#
- 1...Ke5
- 2.Qe6#
- 1...e5
- 2.Be6#
- 1...e6!
- 1...Kc4
- 1.Bf5?
- 1...Kc4
- 2.Be6#
- 1...Ke5
- 2.Qe6#
- 1...e5
- 2.Be6#
- 1...e6!
- 1...Kc4
- 1.Bd7?
- 1...Kc4
- 2.Be6#
- 1...Ke5
- 2.Qe6#
- 1...e5
- 2.Be6#
- 1...e6!
- 1...Kc4
- 1.Bc8?
- 1...Kc4
- 2.Be6#
- 1...Ke5
- 2.Qe6#
- 1...e5
- 2.Be6#
- 1...e6!
- 1...Kc4
- 1.Qc7?
- threat
- 2.Be6#
- 1...e6
- 2.Bxe6#
- 1...Kc4!
- threat
- 1.Qc6+?
- 1...Kc4
- 2.Be6#
- 1...Ke5
- 2.Sd3#
- 2.Sd7#
- 2.Qe6#
- 1...Kxc6!
- 1...Kc4
- 1.g3?
- 1...Kc4
- 2.Be6#
- 1...Ke5
- 2.Qe6#
- 1...e5
- 2.Be6#
- 1...e6!
- 1...Kc4
- 1.Kd1?
- Keys
- 1.Se6!
- 1...Kc4
- 2.Se3#
- 1...Ke4
- 2.Qd4#
- 1...Ke5
- 2.Qd4#
- 1...Kc4
- 1.Se6!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 2
- ADDED MATES = 1
- REMOVED MATES = 1
- Sets
- K(b);S_FLIGHT::B(F)
- K(b);P-FLIGHT::QAR1(H)
- P(c);SBLOCK::B(F)
- Tries
- Try
- K(C);S_FLIGHT
- Vars
- K(b);S_FLIGHT::B(F)
- K(b);P-FLIGHT::QAR1(H)
- P(c);SBLOCK::B(F)
- Refutation
- P(c);
- Try
- K(C);P-FLIGHT
- Vars
- K(b);S_FLIGHT::B(F)
- K(b);P-FLIGHT::QAR1(H)
- P(c);SBLOCK::B(F)
- Refutation
- P(c);
- Try
- K(C);S_FLIGHT
- Vars
- K(b);S_FLIGHT::B(F)
- K(b);P-FLIGHT::QAR1(H)
- P(c);SBLOCK::B(F)
- Refutation
- P(c);
- Try
- K(C);P-FLIGHT
- Vars
- K(b);S_FLIGHT::B(F)
- K(b);P-FLIGHT::QAR1(H)
- P(c);SBLOCK::B(F)
- Refutation
- P(c);
- Try
- K(C);S_FLIGHT
- Vars
- K(b);P-FLIGHT::QAR1(H)
- Refutation
- P(c);
- Try
- K(C);P-FLIGHT
- Vars
- K(b);S_FLIGHT::B(F)
- K(b);P-FLIGHT::QAR1(H)
- P(c);SBLOCK::B(F)
- Refutation
- P(c);
- Try
- K(C);S_FLIGHT
- Vars
- K(b);S_FLIGHT::B(F)
- K(b);P-FLIGHT::QAR1(H)
- P(c);SBLOCK::B(F)
- Refutation
- P(c);
- Try
- S(G);
- Threat
- QAB1(H)
- Vars
- P(c);::QAB1(H),XP(c)
- Refutation
- P(c);
- Try
- S(G);XP(a)
- Threat
- QAB1(H)
- Vars
- P(c);::QAB1(H),XP(c)
- Refutation
- P(c);
- Try
- S(G);
- Threat
- QAB1(H)
- Vars
- P(c);::QAB1(H),XP(c)
- Refutation
- P(c);
- Try
- S(G);
- Threat
- QAB1(H)
- Vars
- P(c);::QAB1(H),XP(c)
- Refutation
- P(c);
- Try
- S(G);
- Threat
- QAB1(H)
- Vars
- P(c);::QAB1(H),XP(c)
- Refutation
- P(c);
- Try
- S(G);
- Threat
- QAB1(H)
- Vars
- P(c);::QAB1(H),XP(c)
- Refutation
- P(c);
- Try
- B(B);
- Threat
- DUALS(2)
- Refutation
- K(b);S_FLIGHT
- Try
- B(B);
- Threat
- QAB1(H)
- Vars
- K(b);P-FLIGHT::QAR1(H)
- P(c);::QAB1(H),XP(c)
- Refutation
- K(b);S_FLIGHT
- Try
- B(B);
- Threat
- QAB1(H)
- Vars
- K(b);S_FLIGHT::B(F)
- P(c);::QAB1(H),XP(c)
- Refutation
- K(b);P-FLIGHT
- Try
- B(B);
- Threat
- B(F)
- Vars
- P(c);::B(F),XP(c)
- Refutation
- K(b);S_FLIGHT
- Try
- B(F);
- Vars
- K(b);S_FLIGHT::B(F)
- K(b);P-FLIGHT::QAR1(H)
- P(c);SBLOCK::B(F)
- Refutation
- P(c);
- Try
- B(F);
- Vars
- K(b);S_FLIGHT::B(F)
- K(b);P-FLIGHT::QAR1(H)
- P(c);SBLOCK::B(F)
- Refutation
- P(c);
- Try
- B(F);
- Vars
- K(b);S_FLIGHT::B(F)
- K(b);P-FLIGHT::QAR1(H)
- P(c);SBLOCK::B(F)
- Refutation
- P(c);
- Try
- B(F);
- Vars
- K(b);S_FLIGHT::B(F)
- K(b);P-FLIGHT::QAR1(H)
- P(c);SBLOCK::B(F)
- Refutation
- P(c);
- Try
- Q(H);
- Threat
- B(F)
- Vars
- P(c);::B(F),XP(c)
- Refutation
- K(b);S_FLIGHT
- Try
- Q(H);CHECK
- Vars
- K(b);S_FLIGHT::B(F)
- Refutation
- K(b);S_FLIGHT,XQ(H)
- Try
- P(D);
- Vars
- K(b);S_FLIGHT::B(F)
- K(b);P-FLIGHT::QAR1(H)
- P(c);SBLOCK::B(F)
- Refutation
- P(c);
- Try
- Actual
- S(G);
- Vars
- K(b);S_FLIGHT::S(A)
- K(b);S_FLIGHT::QAR1(H)
- K(b);P-FLIGHT::QAB1(H)
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