MESON Chess Problem Database

Problem Display
PID: 135310 (8/6Q1/4pp2/5N2/3p1kp1/3p4/3N3P/5K2 w - - 0 1)

Borders, Reginald W

The Field, 1915

(First published on Sat May 15 1915)

8/6Q1/4pp2/5N2/3p1kp1/3p4/3N3P/5K2

#2

5 + 6

3713 Snap 2010

SOLUTION

  • SOUND
  • Tries
    • 1.Sh4?
      • 1...Ke3
        • 2.Qh6#
      • 1...g3
        • 2.Qxg3#
      • 1...e5
        • 2.Qh6#
      • 1...f5
        • 2.Sg2#
      • 1...Ke5!
    • 1.Qxg4+?
      • 1...Ke5
        • 2.Qe4#
      • 1...Kxg4!
  • Keys
    • 1.Se3!
      • 1...Kxe3
        • 2.Qh6#
      • 1...Ke5
        • 2.Qc7#
      • 1...dxe3
        • 2.Qxf6#
      • 1...g3
        • 2.Qxg3#
      • 1...e5
        • 2.Qh6#
      • 1...f5
        • 2.Sg2#

Anticipated by 137577(1890)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(D);
      • Vars
        • K(c);S_FLIGHT::QAB(E)
        • P(d);OGATE::QAB1(E),XP(d)
        • P(e);SBLOCK::QAB(E)
        • P(f);SBLOCK::S(D)
      • Refutation
        • K(c);P_SPINP(f),S_FLIGHT
    • Try
      • Q(E);CHECK,XP(d)
      • Vars
        • K(c);OGATE,S_FLIGHT::QAR1(E)
      • Refutation
        • K(c);P-FLIGHT,XQ(E)
  • Actual
    • S(D);
    • Vars
      • K(c);S_FLIGHT,XS(D)::QAB(E)
      • K(c);P_SPINP(f),S_FLIGHT::QAB(E)
      • P(b);SBLOCK,XS(D)::QAR2(E),XP(f)
      • P(d);OGATE::QAB1(E),XP(d)
      • P(e);SBLOCK::QAB(E)
      • P(f);SBLOCK::S(D)
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