MESON Chess Problem Database
Problem Display
PID: 6622 (1N3b2/5pn1/2Nrkp2/3R4/1B1Q1P2/8/3KB1q1/4R3 w - - 0 1)
Arguelles Ferrer, Antonio Fernandez
1st Prize, Il Problema, 1932
#2
9 + 7
| 3098 | FIDE Album (1914-1944) (I) | 1971 |
| 5454 | Near Snap | 2007 |
SOLUTION
- SOUND
- Sets
- 1...Qf1
- 2.Bxf1#
- 2.Bg4#
- 2.Qe4#
- 1...Qh1
- 2.Bg4#
- 1...Qf3
- 2.Bxf3#
- 1...Qh3
- 2.Bf3#
- 2.Bg4#
- 2.Qe4#
- 1...Qe4
- 2.Qxe4#
- 1...Qxd5
- 2.Bg4#
- 1...Qg1
- 2.Bg4#
- 2.Qe4#
- 1...Qxe2+
- 2.Rxe2#
- 1...Qf2
- 2.Qe4#
- 1...Qh2
- 2.Qe4#
- 1...Qg3
- 2.Bg4#
- 2.Qe4#
- 1...Qg4
- 2.Bf3#
- 2.Bxg4#
- 2.Qe4#
- 1...Qg5
- 2.Bg4#
- 1...Qg6
- 2.Bg4#
- 1...Rd8
- 2.Sxd8#
- 1...Sh5
- 2.f5#
- 1...Se8
- 2.f5#
- 1...f5
- 2.Qe5#
- 1...Qf1
- Tries
- 1.Kd1?
- threat
- 2.Bg4#
- 1...Qxe2+
- 2.Rxe2#
- 1...Qf3
- 2.Bxf3#
- 1...Qe4
- 2.Qxe4#
- 1...Qg4
- 2.Bf3#
- 2.Bxg4#
- 2.Qe4#
- 1...f5
- 2.Qe5#
- 1...Sf5!
- threat
- 1.Rxd6+?
- 1...Kf5
- 2.Rxf6#
- 1...Bxd6!
- 1...Kf5
- 1.Qe3+?
- 1...Qe4
- 2.Qxe4#
- 1...Kxd5!
- 1...Qe4
- 1.Qxf6+?
- 1...Kxd5
- 2.Qe5#
- 1...Kxf6!
- 1...Kxd5
- 1.Kd1?
- Keys
- 1.Qc4!
- 1...Qxd5+
- 2.Bd3#
- 1...Qxe2+
- 2.Rxe2#
- 1...Rxd5+
- 2.Sd4#
- 1...Rxc6
- 2.Re5#
- 1...f5
- 2.Rxd6#
- 1...Sf5
- 2.Rxd6#
- 1...Qf1
- 2.Bxf1#
- 2.Bg4#
- 2.Qe4#
- 1...Qh1
- 2.Bg4#
- 1...Qf3
- 2.Bxf3#
- 1...Qh3
- 2.Bf3#
- 2.Bg4#
- 2.Qe4#
- 1...Qe4
- 2.Qxe4#
- 1...Qg1
- 2.Bg4#
- 2.Qe4#
- 1...Qf2
- 2.Qe4#
- 1...Qh2
- 2.Qe4#
- 1...Qg3
- 2.Bg4#
- 2.Qe4#
- 1...Qg4
- 2.Bf3#
- 2.Bxg4#
- 2.Qe4#
- 1...Qg5
- 2.Bg4#
- 1...Qg6
- 2.Bg4#
- 1...Rd7
- 2.Sd4#
- 1...Rd8
- 2.Sd4#
- 2.Sxd8#
- 1...Be7
- 2.Sd4#
- 1...Sh5
- 2.f5#
- 1...Se8
- 2.f5#
- 1...Qxd5+
- 1.Qc4!
This anticipates 6874(1934/I)
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 2
- ADDED MATES = 5
- REMOVED MATES = 1
- Sets
- Q(a);N_PINB(C)::R(A)+B(C),DCHECK
- Q(a);N_PINB(C)::R(A)+B(C),XQ(a)
- Q(a);N_GUARD,N_PINB(C)::QAR2(E),XQ(a)
- Q(a);N_PINB(C),P_PINQ(E),XR(G)::R(A)+B(C),DCHECK
- Q(a);CHECK,OGATE,P_SPINQ(a),XB(C)::R(A),XQ(a)
- Q(a);N_GUARD::QAR2(E)
- Q(a);N_PINB(C),P_PINP(F)::R(A)+B(C),DCHECK
- R(b);N_GUARD::S(H),XR(b)
- S(f);N_GUARD::P(F)
- P(d);N_GUARD::QAR1(E)
- Tries
- Try
- K(B);N_SPINB(C),P-FLIGHT
- Threat
- R(A)+B(C),DCHECK
- Vars
- Q(a);CHECK,OGATE,P_SPINQ(a),XB(C)::R(A),XQ(a)
- Q(a);N_GUARD,P_PINB(C)::R(A)+B(C),XQ(a)
- Q(a);N_GUARD::QAR2(E),XQ(a)
- P(d);N_GUARD::QAR1(E)
- Refutation
- S(f);
- Try
- R(G);CHECK,XR(b)
- Vars
- K(c);OGATE,S_FLIGHT::R1(G),XP(d)
- Refutation
- B(g);XR(G)
- Try
- Q(E);CHECK,P_SPINR(G)
- Vars
- Q(a);N_GUARD,N_PINB(C),P_SPINQ(a)::QAR2(E),XQ(a)
- Refutation
- K(c);S_FLIGHT,XR(G)
- Try
- Q(E);CHECK,P_SPINR(G),XP(d)
- Vars
- K(c);S_FLIGHT,XR(G)::QAR1(E)
- Refutation
- K(c);P-FLIGHT,XQ(E)
- Try
- Actual
- Q(E);P_SPINR(G)
- Vars
- Q(a);CHECK,N_PINB(C),P_SPINQ(a),XR(G)::R(A)+B(C)
- Q(a);CHECK,OGATE,P_SPINQ(a),XB(C)::R(A),XQ(a)
- R(b);CHECK,P_SPINR(b),XR(G)::S(H)
- R(b);N_PINR(G),XS(H)::QAB(E)+R(G),DCHECK
- P(d);SBLOCK::QAB(E)+R(G),DCHECK,XR(b)
- S(f);SBLOCK::QAB(E)+R(G),DCHECK,XR(b)
- Q(a);N_PINB(C)::R(A)+B(C),DCHECK
- Q(a);N_PINB(C)::R(A)+B(C),XQ(a)
- Q(a);N_GUARD,N_PINB(C)::QAR2(E),XQ(a)
- Q(a);N_GUARD::QAR2(E)
- Q(a);N_PINB(C),P_PINP(F)::R(A)+B(C),DCHECK
- R(b);::S(H)
- B(g);SBLOCK::S(H)
- S(f);N_GUARD::P(F)
Developed and maintained by Brian Stephenson.
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