MESON Chess Problem Database
Problem Display
PID: 147052 (2n5/2N4P/5p2/1r2k1p1/r7/Bp1BPQNb/8/1KR5 w - - 0 1)
Onkoud, Abdelaziz
Australian Chess Problem Magazine, 1995
#2
9 + 8
SOLUTION
- SOUND
- Sets
- 1...Re4
- 2.Qxe4#
- 1...Rg4
- 2.Qf5#
- 1...Raa5
- 2.Qe4#
- 1...Ra6
- 2.Qe4#
- 1...Ra7
- 2.Qe4#
- 1...Ra8
- 2.Qe4#
- 1...Rb4
- 2.Qd5#
- 1...Rd5
- 2.Qxd5#
- 1...Rb6
- 2.Qd5#
- 1...Rb7
- 2.Qd5#
- 1...Rb8
- 2.Qd5#
- 1...Bf1
- 2.Qf5#
- 1...Bg2
- 2.Qf5#
- 1...Bf5
- 2.Qxf5#
- 1...g4
- 2.Qf5#
- 1...f5
- 2.h8Q#
- 2.h8B#
- 1...Re4
- Tries
- 1.Sh5?
- threat
- 2.Qxf6#
- 1...Ra6
- 2.Qe4#
- 2.Qg3#
- 1...Rb6
- 2.Qd5#
- 1...Bf5
- 2.Qxf5#
- 1...f5
- 2.h8Q#
- 2.h8B#
- 1...Rf4!
- threat
- 1.Rf1?
- threat
- 2.Qxf6#
- 1...Bxf1
- 2.Qf5#
- 1...f5
- 2.h8Q#
- 2.h8B#
- 1...Ra6
- 2.Qe4#
- 1...Rb6
- 2.Qd5#
- 1...Bf5
- 2.Qxf5#
- 1...Rf4!
- threat
- 1.Rc6?
- threat
- 2.Qxf6#
- 1...Bf5
- 2.Qxf5#
- 1...Be6
- 2.Rxe6#
- 1...Sd6
- 2.Bxd6#
- 1...f5
- 2.Re6#
- 2.h8Q#
- 2.h8B#
- 1...Rf4!
- threat
- 1.h8Q?
- threat
- 2.Qhxf6#
- 2.Qfxf6#
- 1...Ra6
- 2.Qe4#
- 1...Rb6
- 2.Qd5#
- 1...Bf5
- 2.Qxf5#
- 1...Rf4!
- threat
- 1.h8S?
- threat
- 2.Sg6#
- 2.Sf7#
- 1...Rxa3
- 2.Sf7#
- 1...Rab4
- 2.Sf7#
- 1...Rbb4
- 2.Sf7#
- 2.Qd5#
- 1...Rc5
- 2.Sf7#
- 1...Bf5
- 2.Sf7#
- 2.Qxf5#
- 1...Be6
- 2.Sg6#
- 1...Sd6
- 2.Sg6#
- 1...Se7
- 2.Sf7#
- 1...f5!
- threat
- 1.h8B?
- threat
- 2.Bxf6#
- 2.Qxf6#
- 1...Rxa3
- 2.Qxf6#
- 1...Rab4
- 2.Qxf6#
- 1...Rbb4
- 2.Qd5#
- 2.Qxf6#
- 1...Rc5
- 2.Qxf6#
- 1...Ra6
- 2.Qe4#
- 1...Rb6
- 2.Qd5#
- 1...Bf5
- 2.Qxf5#
- 1...Rf4!
- threat
- 1.Sh5?
- Keys
- 1.Se4!
- threat
- 2.Qxf6#
- 1...Rxe4
- 2.Qxe4#
- 1...Ra6
- 2.Bb2#
- 1...Rb6
- 2.Rc5#
- 1...Bf5
- 2.Qg3#
- 1...f5
- 2.h8Q#
- 2.h8B#
- threat
- 1.Se4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 3
- ADDED MATES = 0
- REMOVED MATES = 11
- Sets
- R(c);N_GUARD::QAR1(F),XR(c)
- R(c);S_CUTB(b)::QAR1(F)
- R(c);N_GUARD::QAR1(F)
- R(d);N_GUARD::QAR1(F)
- R(d);N_GUARD::QAR1(F),XR(d)
- B(b);N_GUARD::QAR1(F)
- B(b);N_GUARD,P_PINB(D)::QAR1(F),XB(b)
- P(f);S_CUTB(b)::QAR1(F)
- P(g);::P=Q
- Tries
- Try
- S(G);
- Threat
- QAB1(F),XP(g)
- Vars
- R(d);N_GUARD::QAR1(F)
- B(b);N_GUARD,P_PINB(D)::QAR1(F),XB(b)
- P(g);::P=Q
- Refutation
- R(c);
- Try
- R(B);
- Threat
- QAB1(F),XP(g)
- Vars
- B(b);N_GUARD,XR(B)::QAR1(F)
- P(g);::P=Q
- R(c);N_GUARD::QAR1(F)
- R(d);N_GUARD::QAR1(F)
- B(b);N_GUARD,P_PINB(D)::QAR1(F),XB(b)
- Refutation
- R(c);
- Try
- R(B);
- Threat
- QAB1(F),XP(g)
- Vars
- B(b);N_GUARD,P_PINB(D)::QAR1(F),XB(b)
- B(b);N_GUARD::R1(B),XB(b)
- S(h);N_GUARD::B(C),XS(h)
- Refutation
- R(c);
- Try
- P(I);P_PINP(g)
- Threat
- DUALS(2)
- Vars
- R(c);N_GUARD::QAR1(F)
- R(d);N_GUARD::QAR1(F)
- B(b);N_GUARD,P_PINB(D)::QAR1(F),XB(b)
- Refutation
- R(c);
- Try
- P(I);
- Threat
- DUALS(2)
- Vars
- R(c);XB(C)::S(I)
- R(c);::S(I)
- R(d);::S(I)
- B(b);::S(I)
- S(h);::S(I)
- Refutation
- P(g);
- Try
- P(I);P_PINP(g)
- Threat
- DUALS(2)
- Vars
- R(c);XB(C)::QAB1(F),XP(g)
- R(c);::QAB1(F),XP(g)
- R(d);::QAB1(F),XP(g)
- R(c);N_GUARD::QAR1(F)
- R(d);N_GUARD::QAR1(F)
- B(b);N_GUARD,P_PINB(D)::QAR1(F),XB(b)
- Refutation
- R(c);
- Try
- Actual
- S(G);
- Threat
- QAB1(F),XP(g)
- Vars
- R(c);OGATE,XS(G)::QAR1(F),XR(c)
- R(c);N_GUARD::B(C)
- R(d);N_GUARD::R(B)
- B(b);SBLOCK::QAB(F)
- P(g);::P=Q
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