MESON Chess Problem Database

Problem Display
PID: 67898 (8/8/nprp1N2/8/1p1k1P2/R1q5/1B1N2K1/Q4B2 w - - 0 1)

Dilke, OAW

Chess, 1949

8/8/nprp1N2/8/1p1k1P2/R1q5/1B1N2K1/Q4B2

#2

8 + 7

SOLUTION

  • SOUND
  • Tries
    • 1.Sf3+?
      • 1...Ke3
        • 2.Bc1#
        • 2.Qc1#
      • 1...Kc5!
    • 1.Qe1?
      • threat
        • 2.Sb3#
        • 2.Qf2#
      • 1...Qxb2
        • 2.Qf2#
        • 2.Qe3#
      • 1...Sc5
        • 2.Sf3#
        • 2.Qf2#
      • 1...b3
        • 2.Sxb3#
        • 2.Qf2#
      • 1...Kc5!
  • Keys
    • 1.Qc1!
      • threat
        • 2.Sb3#
      • 1...Ke3
        • 2.Sf3#
      • 1...Kc5
        • 2.Sb3#
      • 1...Qxb2
        • 2.Rd3#
      • 1...Sc5
        • 2.Sf3#
      • 1...b3
        • 2.Sxb3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(D);CHECK
      • Refutation
        • K(c);N_SPINQ(a),S_FLIGHT
    • Try
      • Q(A);
      • Threat
        • DUALS(2)
      • Refutation
        • K(c);N_SPINQ(a),S_FLIGHT
  • Actual
    • Q(A);
    • Threat
      • S(D)
    • Vars
      • K(c);S_FLIGHT::QAB(A)+S(D)
      • K(c);S_FLIGHT::S(D)
      • Q(a);N_SPINQ(a),OGATE,P_PINS(D),XB(C)::R1(F)
      • S(d);SBLOCK::S(D)
      • P(b);::S(D),XP(b)
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