MESON Chess Problem Database

Problem Display
PID: 18175 (4nb2/5p2/8/1Np1k1pN/2B1n1p1/4Q3/8/K4R2 w - - 0 1)

Woodward, LA

Time & Tide, 1953

4nb2/5p2/8/1Np1k1pN/2B1n1p1/4Q3/8/K4R2

#2

6 + 8

SOLUTION

  • SOUND
  • Tries
    • 1.Sg3?
      • threat
        • 2.Rf5#
        • 2.Qxe4#
      • 1...f5
        • 2.Rxf5#
      • 1...Sf6
        • 2.Rf5#
      • 1...Sg7
        • 2.Qxe4#
      • 1...Sd6!
    • 1.Sf6?
      • threat
        • 2.Sxg4#
        • 2.Sd7#
        • 2.Qxe4#
      • 1...Sd6
        • 2.Sxg4#
        • 2.Sd7#
      • 1...g3
        • 2.Sg4#
        • 2.Sd7#
        • 2.Qxe4#
      • 1...Sxf6!
    • 1.Qxg5+?
      • 1...f5
        • 2.Rxf5#
        • 2.Qf4#
        • 2.Qxf5#
      • 1...Sxg5!
  • Keys
    • 1.Re1!
      • threat
        • 2.Qxe4#
      • 1...Kf5
        • 2.Qxe4#
      • 1...Sd6
        • 2.Qxc5#
      • 1...Sf6
        • 2.Qxg5#
      • 1...f5
        • 2.Qc3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(F);
      • Threat
        • DUALS(2)
      • Vars
        • P(f);::R1(B),XP(f)
        • S(g);::R1(B)
        • S(g);::QAR1(C),XS(a)
      • Refutation
        • S(g);
    • Try
      • S(F);
      • Threat
        • DUALS(3)
      • Refutation
        • S(g);XS(F)
    • Try
      • Q(C);CHECK,N_PINS(a),XP(e)
      • Refutation
        • S(a);XQ(C)
  • Actual
    • R(B);
    • Threat
      • QAR1(C),XS(a)
    • Vars
      • K(d);N_SPINS(a),P-FLIGHT::QAB1(C),XS(a)
      • S(g);S_CUTB(h)::QAR2(C),XP(c)
      • S(g);S_CUTP(f)::QAR2(C),XP(e)
      • P(f);SBLOCK::QAB(C)
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Developed and maintained by Brian Stephenson.
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