MESON Chess Problem Database

Problem Display
PID: 79385 (1nQ4b/3p1N2/1pB5/8/1Ppk2nB/1P5r/4Pr2/K2N3b w - - 0 1)

Driver, John Edward

The Tablet, 1964

(First published on Sat Nov 7 1964)

1nQ4b/3p1N2/1pB5/8/1Ppk2nB/1P5r/4Pr2/K2N3b

#2

9 + 10

15239 Valois Notebooks 2017

SOLUTION

  • SOUND
  • Tries
    • 1.Qxd7+?
      • 1...Bd5
        • 2.Qxd5#
      • 1...Sxd7!
  • Keys
    • 1.Bf3!
      • threat
        • 2.Qxc4#
      • 1...cxb3
        • 2.Qc3#
      • 1...Se3
        • 2.Qxh8#
      • 1...Se5
        • 2.Bxf2#
      • 1...Sc6
        • 2.Qxd7#
      • 1...c3
        • 2.Qxc3#
        • 2.Qc4#
      • 1...b5
        • 2.Qc5#
      • 1...d5
        • 2.Qxg4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(I);CHECK,XP(h)
      • Vars
        • B(a);N_GUARD,P_SPINB(a)::QAR1(I),XB(a)
      • Refutation
        • S(i);XQ(I)
  • Actual
    • B(G);
    • Threat
      • QAR1(I),XP(d)
    • Vars
      • P(d);OGATE,XP(D)::QAB1(I)
      • S(f);N_GUARD::QAB(I),XB(j)
      • S(f);N_GUARD::B(F),XR(b)
      • S(i);N_GUARD::QAR(I),XP(h)
      • P(g);N_GUARD::QAB1(I)
      • P(h);OGATE::QAR(I),XS(f)
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