MESON Chess Problem Database

Problem Display
PID: 183541 (8/1B6/2N2p2/3k4/3p1Q2/K2pp3/8/8 w - - 0 1)

Green, S (= Laws, BG)

British Chess Magazine, 1915

8/1B6/2N2p2/3k4/3p1Q2/K2pp3/8/8

#2

4 + 5

5454 Near Snap 2018

SOLUTION

  • SOUND
  • Tries
    • 1.Sa7+?
      • 1...Kc4
        • 2.Qc7#
      • 1...Kc5
        • 2.Qc7#
      • 1...Ke6!
  • Keys
    • 1.Qc7!
      • threat
        • 2.Sd8#
      • 1...Kc4
        • 2.Sa7#
      • 1...Ke4
        • 2.Se7#
      • 1...Kc5
        • 2.Sa7#
      • 1...Ke6
        • 2.Sxd4#

This anticipates 74153(1951)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(C);CHECK
      • Vars
        • K(d);P_SPINP(c),S_FLIGHT::QAR(B)
        • K(d);P-FLIGHT::QAR2(B)
      • Refutation
        • K(d);S_FLIGHT
  • Actual
    • Q(B);
    • Threat
      • B(D)+S(C)
    • Vars
      • K(d);S_FLIGHT::QAR(B)+S(C)
      • K(d);S_FLIGHT::B(D)+S(C)
      • K(d);P-FLIGHT::QAR(B)+S(C)
      • K(d);S_FLIGHT::S(C),XP(c)
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