MESON Chess Problem Database
Problem Display
PID: 65412 (2b5/2N2Q2/1p2p3/2p1P2p/1NkP2pR/3p4/3B4/1R2K3 w - - 0 1)
Onkoud, Abdelaziz
Problemesis, 2000
#2
9 + 8
SOLUTION
- SOUND
- Sets
- 1...Kxd4
- 2.Qf4#
- 1...g3
- 2.d5#
- 1...cxb4
- 2.Rxb4#
- 1...Kxd4
- Tries
- 1.Rc1+?
- 1...Kxd4
- 2.Qf4#
- 1...Kb3!
- 1...Kxd4
- 1.Qxe6+?
- 1...Kxd4
- 2.Qd5#
- 1...Bxe6!
- 1...Kxd4
- 1.Qf1?
- threat
- 2.Qxd3#
- 1...Kxd4
- 2.Qf4#
- 1...cxb4
- 2.Rxb4#
- 1...cxd4!
- threat
- 1.Qf4?
- threat
- 2.d5#
- 1...cxb4
- 2.Rxb4#
- 1...cxd4!
- threat
- 1.d5?
- threat
- 2.Qf4#
- 1...Kd4
- 2.Qf4#
- 1...exd5
- 2.Qxd5#
- 1...cxb4!
- threat
- 1.Rc1+?
- Keys
- 1.Qf3!
- threat
- 2.Qxd3#
- 1...Kxd4
- 2.Qf4#
- 1...gxf3
- 2.d5#
- 1...cxb4
- 2.Rxb4#
- 1...cxd4
- 2.Qc6#
- threat
- 1.Qf3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 1
- Sets
- K(b);N_SPINP(g),OGATEB,P-FLIGHT,P_SPINP(c),XP(E)::QAR2(I)
- P(c);::R(F)+P(E)
- P(d);OGATE,XS(D)::R1(A),XP(d)
- Tries
- Try
- R(A);CHECK
- Vars
- K(b);N_SPINP(g),P-FLIGHT,P_SPINP(c),XP(E)::QAR2(I)
- Refutation
- K(b);S_FLIGHT
- Try
- Q(I);CHECK,XP(g)
- Vars
- K(b);P-FLIGHT,P_SPINP(c),XP(E)::QAR1(I)
- Refutation
- B(h);XQ(I)
- Try
- Q(I);N_PINP(g),P_PINP(a)
- Threat
- QAB1(I),XP(a)
- Vars
- K(b);N_SPINP(a),OGATEB,P-FLIGHT,P_SPINP(c),XP(E)::QAR2(I)
- P(d);OGATE,XS(D)::R1(A),XP(d)
- Refutation
- P(d);XP(E)
- Try
- Q(I);N_PINP(g)
- Threat
- QAR(I)+P(E)
- Vars
- P(d);OGATE,XS(D)::R1(A),XP(d)
- Refutation
- P(d);P_SPINP(d),XP(E)
- Try
- P(E);N_PINP(g),P_PINP(c)
- Threat
- QAR(I)
- Vars
- K(b);P-FLIGHT::QAR2(I)
- P(g);OGATE,XP(E)::QAB1(I),XP(g)
- Refutation
- P(d);XS(D)
- Try
- Actual
- Q(I);N_PINP(g)
- Threat
- QAB1(I),XP(a)
- Vars
- K(b);OGATEB,P-FLIGHT,P_SPINP(c),XP(E)::QAR2(I)
- P(c);XQ(I)::R(F)+P(E)
- P(d);OGATE,XS(D)::R1(A),XP(d)
- P(d);OGATEB,SBLOCK,XP(E)::QAR2(I)
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