MESON Chess Problem Database
Problem Display
PID: 58979 (8/8/2Qppp2/1K2k3/1N1pppP1/8/8/6B1 w - - 0 1)
Onkoud, Abdelaziz
Troll, 1998
#2
5 + 7
SOLUTION
- SOUND
- Sets
- 1...d3
- 2.Qc3#
- 1...e3
- 2.Sd3#
- 1...f3
- 2.Bh2#
- 1...d5
- 2.Qc7#
- 1...d3
- Tries
- 1.Ka4?
- 1...f3
- 2.Bh2#
- 1...d3
- 2.Qc3#
- 1...e3
- 2.Sd3#
- 1...d5
- 2.Qc7#
- 1...f5!
- 1...f3
- 1.Kc4?
- threat
- 2.Bxd4#
- 1...f3
- 2.Bh2#
- 1...d3
- 2.Bd4#
- 1...e3
- 2.Sd3#
- 1...d5+!
- threat
- 1.Ka5?
- 1...f3
- 2.Bh2#
- 1...d3
- 2.Qc3#
- 1...e3
- 2.Sd3#
- 1...d5
- 2.Qc7#
- 1...f5!
- 1...f3
- 1.Ka6?
- 1...f3
- 2.Bh2#
- 1...d3
- 2.Qc3#
- 1...e3
- 2.Sd3#
- 1...d5
- 2.Qc7#
- 1...f5!
- 1...f3
- 1.Kb6?
- 1...f3
- 2.Bh2#
- 1...d3
- 2.Qc3#
- 1...e3
- 2.Sd3#
- 1...d5
- 2.Qc7#
- 1...f5!
- 1...f3
- 1.Sc2?
- threat
- 2.Bxd4#
- 1...f3
- 2.Bh2#
- 1...d3
- 2.Bd4#
- 1...e3!
- threat
- 1.Bf2?
- 1...f3
- 2.Bg3#
- 1...d3
- 2.Qc3#
- 1...e3
- 2.Sd3#
- 1...d5
- 2.Qc7#
- 1...f5!
- 1...f3
- 1.Bh2?
- 1...d3
- 2.Qc3#
- 1...e3
- 2.Sd3#
- 1...d5
- 2.Qc7#
- 1...f5!
- 1...d3
- 1.Qb7?
- 1...f3
- 2.Bh2#
- 1...d5
- 2.Qc7#
- 2.Qb8#
- 1...f5
- 2.Qg7#
- 1...e3
- 2.Sd3#
- 1...d3!
- 1...f3
- 1.Qc4?
- threat
- 2.Sc6#
- 2.Bxd4#
- 2.Qxd4#
- 1...f3
- 2.Bh2#
- 1...d5
- 2.Qc7#
- 1...f5
- 2.Bxd4#
- 2.Qxd4#
- 1...d3
- 2.Sc6#
- 2.Bd4#
- 2.Qc3#
- 2.Qd4#
- 1...e3!
- threat
- 1.Qc5+?
- 1...d5
- 2.Sc6#
- 2.Bxd4#
- 2.Qc7#
- 1...dxc5!
- 1...d5
- 1.Qb6?
- threat
- 2.Bxd4#
- 2.Qxd4#
- 1...f3
- 2.Bh2#
- 1...d3
- 2.Bd4#
- 2.Qd4#
- 1...d5
- 2.Bxd4#
- 2.Qc7#
- 2.Qb8#
- 1...e3!
- threat
- 1.Qc7?
- 1...f3
- 2.Bh2#
- 1...f5
- 2.Qg7#
- 1...d3
- 2.Qc3#
- 1...e3!
- 1...f3
- 1.Qc8?
- 1...f3
- 2.Bh2#
- 1...d5
- 2.Qc7#
- 2.Qb8#
- 1...f5
- 2.Qh8#
- 1...d3
- 2.Qc3#
- 1...e3!
- 1...f3
- 1.Ka4?
- Keys
- 1.Qa8!
- 1...f3
- 2.Bh2#
- 1...d5
- 2.Qb8#
- 1...f5
- 2.Qh8#
- 1...d3
- 2.Qa1#
- 1...e3
- 2.Sd3#
- 1...f3
- 1.Qa8!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 2
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- P(a);OGATEB::QAB(E)
- P(b);N_GUARD::S(B)
- P(c);OGATEB::B(A)
- P(e);OGATEB::QAB(E)
- Tries
- Try
- K(D);S_FLIGHT
- Vars
- P(c);OGATEB::B(A)
- P(a);OGATEB::QAB(E)
- P(b);N_GUARD::S(B)
- P(e);OGATEB::QAB(E)
- Refutation
- P(g);
- Try
- K(D);S_FLIGHT
- Threat
- B(A),XP(a)
- Vars
- P(c);OGATEB::B(A)
- P(a);::B(A)
- P(b);N_GUARD::S(B)
- Refutation
- P(e);CHECK
- Try
- K(D);P-FLIGHT
- Vars
- P(c);OGATEB::B(A)
- P(a);OGATEB::QAB(E)
- P(b);N_GUARD::S(B)
- P(e);OGATEB::QAB(E)
- Refutation
- P(g);
- Try
- K(D);S_FLIGHT
- Vars
- P(c);OGATEB::B(A)
- P(a);OGATEB::QAB(E)
- P(b);N_GUARD::S(B)
- P(e);OGATEB::QAB(E)
- Refutation
- P(g);
- Try
- K(D);P-FLIGHT
- Vars
- P(c);OGATEB::B(A)
- P(a);OGATEB::QAB(E)
- P(b);N_GUARD::S(B)
- P(e);OGATEB::QAB(E)
- Refutation
- P(g);
- Try
- S(B);
- Threat
- B(A),XP(a)
- Vars
- P(c);OGATEB::B(A)
- P(a);::B(A)
- Refutation
- P(b);
- Try
- B(A);
- Vars
- P(c);OGATEB::B(A)
- P(a);OGATEB::QAB(E)
- P(b);N_GUARD::S(B)
- P(e);OGATEB::QAB(E)
- Refutation
- P(g);
- Try
- B(A);P_PINP(c)
- Vars
- P(a);OGATEB::QAB(E)
- P(b);N_GUARD::S(B)
- P(e);OGATEB::QAB(E)
- Refutation
- P(g);
- Try
- Q(E);
- Vars
- P(c);OGATEB::B(A)
- P(g);OGATEB::QAB(E)
- P(b);N_GUARD::S(B)
- Refutation
- P(a);
- Try
- Q(E);
- Threat
- DUALS(3)
- Vars
- P(c);OGATEB::B(A)
- P(e);OGATEB::QAB(E)
- Refutation
- P(b);
- Try
- Q(E);CHECK
- Refutation
- P(e);XQ(E)
- Try
- Q(E);
- Threat
- DUALS(2)
- Vars
- P(c);OGATEB::B(A)
- Refutation
- P(b);
- Try
- Q(E);P_PINP(e)
- Vars
- P(c);OGATEB::B(A)
- P(g);OGATEB::QAB(E)
- P(a);OGATEB::QAB(E)
- Refutation
- P(b);
- Try
- Q(E);
- Vars
- P(c);OGATEB::B(A)
- P(g);OGATEB::QAB(E)
- P(a);OGATEB::QAB(E)
- Refutation
- P(b);
- Try
- Actual
- Q(E);
- Vars
- P(c);OGATEB::B(A)
- P(e);OGATEB::QAB(E)
- P(g);OGATEB::QAB(E)
- P(a);OGATEB::QAB(E)
- P(b);N_GUARD::S(B)
Developed and maintained by Brian Stephenson.
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CSS/Javascript (jQuery, Bootstrap & DataTables).