MESON Chess Problem Database

Problem Display
PID: 56789 (3Q1BBn/2n5/3NP1p1/Rp1k2r1/2pN2b1/2P5/3K4/8 w - - 0 1)

Howard, Kenneth Samuel

Marshall Chess Club Solving Ty., 1931

3Q1BBn/2n5/3NP1p1/Rp1k2r1/2pN2b1/2P5/3K4/8

#2

9 + 8

5089 The Enjoyment of Chess Problems 1943
5454 Near Snap 2007

SOLUTION

  • SOUND
  • Sets
    • 1...Kc5
      • 2.Sc8#
    • 1...Bd1
      • 2.Qxg5#
    • 1...Be2
      • 2.Qxg5#
    • 1...Bf3
      • 2.Qxg5#
    • 1...Bh5
      • 2.Qxg5#
    • 1...Bxe6
      • 2.Qxg5#
    • 1...Sxe6
      • 2.Rxb5#
    • 1...Sa8
      • 2.Rxb5#
    • 1...Se8
      • 2.Rxb5#
  • Tries
    • 1.Qa8+?
      • 1...Kc5
        • 2.Sc8#
        • 2.Qc6#
      • 1...Sxa8
        • 2.Rxb5#
      • 1...Ke5!
  • Keys
    • 1.Ke3!
      • threat
        • 2.Sf7#
      • 1...Re5+
        • 2.Se4#
      • 1...Kc5
        • 2.Sc8#
      • 1...Ke5
        • 2.Sxc4#
      • 1...Bxe6
        • 2.Qxg5#
      • 1...Sxe6
        • 2.Rxb5#
      • 1...Se8
        • 2.Rxb5#
      • 1...Sf7
        • 2.Sxf7#

Anticipated by 35976(1930-1931)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 5
  • Sets
    • K(d);P-FLIGHT::B(H)+S(E)
    • B(b);N_GUARD::QAR(G),XR(e)
    • B(b);N_GUARD,P_SPINB(b),XP(F)::QAR(G),XR(e)
    • S(g);N_GUARD,P_SPINS(g),XP(F)::R(D),XP(c)
    • S(g);N_GUARD::R(D),XP(c)
  • Tries
    • Try
      • Q(G);CHECK
      • Vars
        • S(g);XQ(G)::R(D),XP(c)
      • Refutation
        • K(d);P-FLIGHT
  • Actual
    • K(A);S_FLIGHT
    • Threat
      • QAR(G)+S(E)
    • Vars
      • R(e);CHECK,SBLOCK::QAR(G)+S(E)
      • K(d);P-FLIGHT::B(H)+S(E)
      • K(d);P-FLIGHT::S(E),XP(a)
      • B(b);N_GUARD,P_SPINB(b),XP(F)::QAR(G),XR(e)
      • S(g);N_GUARD,P_SPINS(g),XP(F)::R(D),XP(c)
      • S(g);N_GUARD::R(D),XP(c)
      • S(h);::QAR(G)+S(E),XS(h)
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