MESON Chess Problem Database

Problem Display
PID: 220461 (1R6/2pB4/n5br/1Nkp3p/prN2Q1K/B2p2pp/5bp1/5nq1 w - - 0 1)

Howard, Kenneth Samuel

British Chess Magazine, 1925

1R6/2pB4/n5br/1Nkp3p/prN2Q1K/B2p2pp/5bp1/5nq1

#2

7 + 16

SOLUTION

  • SOUND
  • Sets
    • 1...Se3
      • 2.Qd4#
    • 1...dxc4
      • 2.Qe5#
  • Tries
    • 1.Sb6?
      • threat
        • 2.Sxa4#
      • 1...Bd4
        • 2.Qf8#
      • 1...Be4
        • 2.Qc1#
      • 1...d4
        • 2.Qc1#
        • 2.Qe5#
        • 2.Qf8#
      • 1...cxb6!
  • Keys
    • 1.Sb2!
      • threat
        • 2.Sxa4#
      • 1...d4
        • 2.Qe5#
      • 1...Bd4
        • 2.Qf8#
      • 1...Be4
        • 2.Qc1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 2
  • Sets
    • S(a);S_CUTB(c)::QAB1(C)
    • P(k);OGATEB,SBLOCK,XS(B)::QAR2(C)
  • Tries
    • Try
      • S(B);P_SPINQ(C)
      • Threat
        • S(B),XP(h)
      • Vars
        • B(c);N_PINQ(C)::QAB(C)
        • B(n);N_PINQ(C)::QAR(C)
      • Refutation
        • P(p);XS(B)
  • Actual
    • S(B);P_SPINQ(C)
    • Threat
      • S(B),XP(h)
    • Vars
      • P(k);N_PINQ(C)::QAR2(C)
      • B(c);N_PINQ(C)::QAB(C)
      • B(n);N_PINQ(C)::QAR(C)
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