MESON Chess Problem Database

Problem Display
PID: 59470 (7Q/4B1n1/8/1P6/8/N2N3p/kp4bR/b2B2K1 w - - 0 1)

Morse, Christopher Jeremy

Comm., Derby, 2005

7Q/4B1n1/8/1P6/8/N2N3p/kp4bR/b2B2K1

#2

8 + 6

56 The Problemist 2005

SOLUTION

  • SOUND
  • Sets
    • 1...Bf1
      • 2.Sc1#
    • 1...Bh1
      • 2.Sc1#
    • 1...Bf3
      • 2.Sc1#
    • 1...Be4
      • 2.Sc1#
    • 1...Bd5
      • 2.Sc1#
    • 1...Bc6
      • 2.Sc1#
    • 1...Bb7
      • 2.Sc1#
    • 1...Ba8
      • 2.Sc1#
  • Tries
    • 1.Qg8+?
      • 1...Bd5
        • 2.Sc1#
        • 2.Qxd5#
      • 1...Se6!
  • Keys
    • 1.Qa8!
      • threat
        • 2.Sb4#
      • 1...Bxa8
        • 2.Sc1#
      • 1...b1Q
        • 2.Sc4#
      • 1...b1S
        • 2.Qd5#
      • 1...b1B
        • 2.Sc4#
        • 2.Qd5#
      • 1...b1R
        • 2.Sc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 7
  • Sets
    • B(d);P_SPINP(c)::S(E)
  • Tries
    • Try
      • Q(H);CHECK
      • Refutation
        • S(f);P_SPINS(f)
  • Actual
    • Q(H);
    • Threat
      • S(E)
    • Vars
      • B(d);P_SPINP(c),XQ(H)::S(E)
      • P(c);P_PINB(A),P_SPINB(d),SBLOCK::QAR(H)+S(D)
      • P(c);P_SPINB(d)::QAB(H)
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