MESON Chess Problem Database

Problem Display
PID: 48749 (1b1N3Q/2R5/n7/1prkP2K/3p1pP1/B4N1R/5n2/7B w - - 0 1)

Howard, Kenneth Samuel

The Chess Review, 1933

1b1N3Q/2R5/n7/1prkP2K/3p1pP1/B4N1R/5n2/7B

#2

10 + 8

5089 The Enjoyment of Chess Problems 1943

SOLUTION

  • SOUND
  • Sets
    • 1...Kc4
      • 2.Sd2#
    • 1...Ke4
      • 2.Sd2#
      • 2.Sg5#
    • 1...Se4
      • 2.Qg8#
  • Tries
    • 1.Rxc5+?
      • 1...Ke4
        • 2.Sd2#
        • 2.Sg5#
      • 1...Sxc5!
    • 1.Rd7+?
      • 1...Kc4
        • 2.Sd2#
      • 1...Ke4
        • 2.Sd2#
        • 2.Sg5#
      • 1...Bd6!
  • Keys
    • 1.e6!
      • threat
        • 2.Qxd4#
      • 1...Kc4+
        • 2.Se5#
      • 1...Ke4+
        • 2.Sg5#
      • 1...Kd6+
        • 2.Qe5#
      • 1...Rc4
        • 2.Qe5#
      • 1...d3
        • 2.Qd4#

This is a version

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • K(f);P_PINP(F),P_SPINR(e),S_FLIGHT::S(C)
    • S(a);SBLOCK::QAB(J)
  • Tries
    • Try
      • R(H);CHECK,XR(e)
      • Refutation
        • S(g);XR(H)
    • Try
      • R(H);CHECK
      • Vars
        • K(f);P_PINP(F),S_FLIGHT::S(C)
      • Refutation
        • B(h);P_SPINB(h)
  • Actual
    • P(F);
    • Threat
      • QAR1(J),XP(b)
    • Vars
      • K(f);CHECK,P_SPINR(e),S_FLIGHT::S(C)
      • K(f);CHECK,S_FLIGHT::B(A)+S(C),DCHECK
      • K(f);CHECK,P-FLIGHT,P_SPINR(e)::QAB1(J)
      • R(e);::QAR1(J)
      • P(b);::QAR1(J)
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