MESON Chess Problem Database
Problem Display
PID: 141629 (8/pNKp1B2/Q4B2/P2PP1R1/rPNk1bR1/p2ppP2/3P3q/8 w - - 0 1)
Rosner, Eugene David
The Problemist, 2011
#2
14 + 9
SOLUTION
- SOUND
- Sets
- 1...Qg1
- 2.Rxf4#
- 1...Qh1
- 2.Rxf4#
- 1...Qe2
- 2.Rxf4#
- 1...Qf2
- 2.Rxf4#
- 1...Qg2
- 2.Rxf4#
- 1...Qh3
- 2.Rxf4#
- 1...Qh5
- 2.Rxf4#
- 1...Qh6
- 2.Rxf4#
- 1...Qh8
- 2.Rxf4#
- 1...d6
- 2.exd6#
- 2.e6#
- 1...Qg1
- Tries
- 1.Kc8?
- threat
- 2.e6#
- 1...Qh6
- 2.Rxf4#
- 1...Qh8+!
- threat
- 1.Kd8?
- threat
- 2.e6#
- 1...Qh6
- 2.Rxf4#
- 1...Qh8+!
- threat
- 1.Sb2?
- threat
- 2.Qxd3#
- 2.Qc4#
- 2.Qxa7#
- 1...Qxd2
- 2.Qc4#
- 1...Rxb4
- 2.Qxd3#
- 1...Rxa5
- 2.Qxd3#
- 2.Qc4#
- 1...exd2
- 2.Qxd3#
- 1...Qe2
- 2.Rxf4#
- 2.Qc4#
- 2.Qxa7#
- 1...Qh7
- 2.Qc4#
- 2.Qxa7#
- 1...axb2!
- threat
- 1.Sxe3?
- threat
- 2.Sf5#
- 2.Qc4#
- 2.Qxa7#
- 1...Rxb4
- 2.Sf5#
- 1...Rxa5
- 2.Sf5#
- 2.Qc4#
- 1...Qh7
- 2.Qc4#
- 2.Qxa7#
- 1...Qxd2!
- threat
- 1.Scd6?
- threat
- 2.Sf5#
- 2.Qc4#
- 2.Qxa7#
- 2.e6#
- 1...Qxd2
- 2.Qc4#
- 2.e6#
- 1...Rxb4
- 2.Sf5#
- 2.e6#
- 1...Rxa5
- 2.Sf5#
- 2.Qc4#
- 2.e6#
- 1...Qh6
- 2.Sf5#
- 2.Rxf4#
- 2.Qc4#
- 2.Qxa7#
- 1...Qh7
- 2.Qc4#
- 2.Qxa7#
- 2.e6#
- 1...Qh8
- 2.Sf5#
- 2.Rxf4#
- 2.Qc4#
- 2.Qxa7#
- 1...exd2!
- threat
- 1.Sbd6?
- threat
- 2.Sf5#
- 2.Qxa7#
- 2.e6#
- 1...Qxd2
- 2.e6#
- 1...Rxa5
- 2.Sf5#
- 2.e6#
- 1...exd2
- 2.e6#
- 1...Qh6
- 2.Sf5#
- 2.Rxf4#
- 2.Qxa7#
- 1...Qh7
- 2.Qxa7#
- 2.e6#
- 1...Qh8
- 2.Sf5#
- 2.Rxf4#
- 2.Qxa7#
- 1...Rxb4!
- threat
- 1.Qb6+?
- 1...Kxc4
- 2.d6#
- 1...axb6!
- 1...Kxc4
- 1.d6?
- threat
- 2.Qxa7#
- 2.e6#
- 1...Qxd2
- 2.e6#
- 1...Rxb4
- 2.e6#
- 1...exd2
- 2.e6#
- 1...Qh6
- 2.Rxf4#
- 2.Qxa7#
- 1...Qh8
- 2.Rxf4#
- 2.Qxa7#
- 1...Rxa5!
- threat
- 1.Kc8?
- Keys
- 1.Kxd7!
- threat
- 2.e6#
- 1...Qh6
- 2.Rxf4#
- 1...Qh8
- 2.Rxf4#
- threat
- 1.Kxd7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 7
- Sets
- Q(a);N_GUARD::R(E),XB(g)
- Tries
- Try
- K(M);N_SPINP(H),P-FLIGHT
- Threat
- B(K)+P(H)
- Vars
- Q(a);N_GUARD::R(E),XB(g)
- Refutation
- Q(a);CHECK
- Try
- K(M);N_SPINP(H),S_FLIGHT
- Threat
- B(K)+P(H)
- Vars
- Q(a);N_GUARD::R(E),XB(g)
- Refutation
- Q(a);CHECK
- Try
- S(D);
- Threat
- DUALS(3)
- Vars
- Q(a);XP(A)::QAR1(J)
- R(e);XP(C)::QAR1(J),XP(c)
- P(d);XP(A)::QAR1(J),XP(c)
- Refutation
- P(b);XS(D)
- Try
- S(D);XP(d)
- Threat
- DUALS(3)
- Vars
- R(e);XP(C)::S(D)
- Refutation
- Q(a);XP(A)
- Try
- S(D);N_SPINP(H)
- Threat
- DUALS(4)
- Refutation
- P(d);XP(A)
- Try
- S(L);N_SPINP(H)
- Threat
- DUALS(3)
- Vars
- Q(a);XP(A)::B(K)+P(H)
- P(d);XP(A)::B(K)+P(H)
- Refutation
- R(e);XP(C)
- Try
- Q(J);CHECK
- Vars
- K(f);P-FLIGHT,XS(D)::B(N)+P(G)
- Refutation
- P(h);XQ(J)
- Try
- P(G);N_SPINP(H)
- Threat
- DUALS(2)
- Vars
- Q(a);XP(A)::B(K)+P(H)
- R(e);XP(C)::B(K)+P(H)
- P(d);XP(A)::B(K)+P(H)
- Refutation
- R(e);XP(F)
- Try
- Actual
- K(M);N_SPINP(H),P-FLIGHT,XP(i)
- Threat
- B(K)+P(H)
- Vars
- Q(a);N_GUARD::R(E),XB(g)
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