MESON Chess Problem Database

Problem Display
PID: 46438 (2B5/8/1qR1K3/8/4k3/2P3Q1/8/8 w - - 0 1)

Balo, Tibor

Problemas, 1987

2B5/8/1qR1K3/8/4k3/2P3Q1/8/8

#2

5 + 2

4883 Still More Fun with Chess Miniatures 2002

SOLUTION

  • SOUND
  • Sets
    • 1...Qa5
      • 2.Rc4#
    • 1...Qb1
      • 2.Rc4#
    • 1...Qb2
      • 2.Rc4#
    • 1...Qb7
      • 2.Rc4#
    • 1...Qb8
      • 2.Rc4#
  • Keys
    • 1.Bb7!
      • threat
        • 2.Rxb6#
      • 1...Qb3+
        • 2.Rc4#
      • 1...Qxc6+
        • 2.Bxc6#
      • 1...Qxb7
        • 2.Rc4#
      • 1...Qe3
        • 2.Rd6#
      • 1...Qg1
        • 2.Rc4#
        • 2.Rc5#
        • 2.Ra6#
        • 2.Rb6#
        • 2.Rd6#
        • 2.Rc7#
        • 2.Rc8#
      • 1...Qf2
        • 2.Rc4#
        • 2.Rc5#
        • 2.Ra6#
        • 2.Rb6#
        • 2.Rd6#
        • 2.Rc7#
        • 2.Rc8#
      • 1...Qd4
        • 2.Rc4#
      • 1...Qa5
        • 2.Rc4#
        • 2.Rc5#
      • 1...Qc5
        • 2.Rxc5#
      • 1...Qa7
        • 2.Rc4#
      • 1...Qc7
        • 2.Rc4#
        • 2.Rxc7#
      • 1...Qd8
        • 2.Rc4#
        • 2.Rd6#
      • 1...Qb1
        • 2.Rc4#
        • 2.Rb6#
      • 1...Qb2
        • 2.Rc4#
        • 2.Rb6#
      • 1...Qb4
        • 2.Rc4#
        • 2.Rb6#
      • 1...Qb5
        • 2.Rc4#
      • 1...Qa6
        • 2.Rxa6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 4
  • Sets
    • Q(b);N_PINR(C)::R(C)
  • Actual
    • B(E);
    • Threat
      • B(E)+R(C),XQ(b)
    • Vars
      • Q(b);CHECK,N_PINR(C)::B(E)+R(C),DCHECK
      • Q(b);CHECK,OGATE,P_SPINQ(b),XR(C)::B(E),XQ(b)
      • Q(b);N_PINR(C),XB(E)::R(C)
      • Q(b);N_GUARD,N_PINR(C)::B(E)+R(C)
      • Q(b);N_PINR(C)::B(E)+R(C)
      • Q(b);N_PINR(C)::B(E)+R(C),XQ(b)
      • Q(b);N_PINR(C)::B(E)+R(C),DCHECK
      • Q(b);::B(E)+R(C),XQ(b)
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