MESON Chess Problem Database

Problem Display
PID: 146983 (8/7b/1Kn2N2/1pQ2n2/2r5/3RqkP1/B6R/2b1B3 w - - 0 1)

Evans, DW

Chess, 1955

8/7b/1Kn2N2/1pQ2n2/2r5/3RqkP1/B6R/2b1B3

#2

8 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Qxd3
      • 2.Qf2#
    • 1...Rc2
      • 2.Bd5#
    • 1...Rc3
      • 2.Bd5#
    • 1...Sxg3
      • 2.Rf2#
    • 1...Sfd4
      • 2.Qh5#
    • 1...Scd4
      • 2.Qd5#
  • Keys
    • 1.Bb3!
      • threat
        • 2.Bd1#
      • 1...Qxd3
        • 2.Qf2#
      • 1...Sxg3
        • 2.Rf2#
      • 1...Rc2
        • 2.Bd5#
      • 1...Sfd4
        • 2.Qh5#
      • 1...Scd4
        • 2.Qd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 1
  • Sets
    • Q(b);N_PINQ(F),N_SPINQ(b),XR(D)::QAR1(F)
    • R(d);OGATE::B(B)
    • S(f);SBLOCK,XP(E)::R1(C)
    • S(f);N_PINQ(F)::QAB(F)
    • S(g);N_PINQ(F)::QAB(F)
  • Actual
    • B(B);
    • Threat
      • B(B)
    • Vars
      • Q(b);N_PINQ(F),N_SPINQ(b),XR(D)::QAR1(F)
      • S(f);SBLOCK,XP(E)::R1(C)
      • R(d);OGATE::B(B)
      • S(f);N_PINQ(F)::QAB(F)
      • S(g);N_PINQ(F)::QAB(F)
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