MESON Chess Problem Database

Problem Display
PID: 70577 (3nB3/4B3/3p3n/3RpkN1/5p2/K2N2pr/4Q2P/6Rb w - - 0 1)

Holladay, Edgar Dinwiddie

Chess, 1951

3nB3/4B3/3p3n/3RpkN1/5p2/K2N2pr/4Q2P/6Rb

#2

9 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...f3
      • 2.Qe4#
  • Tries
    • 1.Qxe5+?
      • 1...Kg4
        • 2.Qxf4#
      • 1...dxe5!
  • Keys
    • 1.Sxe5!
      • threat
        • 2.Bg6#
      • 1...gxh2+
        • 2.Sef3#
      • 1...g2+
        • 2.Sd3#
      • 1...dxe5
        • 2.Rxe5#
      • 1...f3
        • 2.Qe4#
      • 1...Shf7
        • 2.Qg4#
      • 1...Sdf7
        • 2.Bd7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • P(d);S_CUTB(a)::QAB1(B)
  • Tries
    • Try
      • Q(B);CHECK,XP(e)
      • Vars
        • K(f);P_SPINP(b),S_FLIGHT::QAR1(B),XP(d)
      • Refutation
        • P(g);P_SPINP(g),XQ(B)
  • Actual
    • S(E);XP(e)
    • Threat
      • B(I)
    • Vars
      • P(b);CHECK,XP(C)::R(F)+S(E)
      • P(b);CHECK,S_CUTB(a)::R(F)+S(E)
      • P(g);OGATE,P_SPINP(g),XS(E)::R1(F),XP(g)
      • P(d);S_CUTB(a)::QAB1(B)
      • S(h);N_GUARD::QAB1(B)
      • S(i);N_GUARD::B(I)
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