MESON Chess Problem Database

Problem Display
PID: 250371 (1BB2N2/3q1r2/2p2p2/2Rp1k1P/rp4bP/p2K4/3P3p/1Q4b1 w - - 0 1)

Harding, WT

Manchester Evening News, 1923

(First published on Sat Dec 15 1923)

1BB2N2/3q1r2/2p2p2/2Rp1k1P/rp4bP/p2K4/3P3p/1Q4b1

#2

9 + 12

15239 Valois Notebooks 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Qe6
      • 2.Bxe6#
    • 1...Rxf8
      • 2.Bxd7#
    • 1...Be3
      • 2.Kxe3#
    • 1...Bd4
      • 2.Kxd4#
  • Tries
    • 1.Qf1+?
      • 1...Bf3
        • 2.Qxf3#
      • 1...Bf2!
  • Keys
    • 1.Rc4!
      • threat
        • 2.Rf4#
      • 1...Be2+
        • 2.Kxe2#
      • 1...dxc4+
        • 2.Kxc4#
      • 1...Rxf8
        • 2.Bxd7#
      • 1...Be3
        • 2.Kxe3#
      • 1...Bd4
        • 2.Kxd4#
      • 1...b3
        • 2.Kc3#
      • 1...d4
        • 2.Rc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • Q(k);OGATE::B(H),XQ(k)
    • R(l);N_GUARD,XS(I)::B(H),XQ(k)
    • B(a);::QAB(A)+K(C),XB(a)
  • Tries
    • Try
      • Q(A);CHECK
      • Vars
        • B(f);N_GUARD,P_SPINB(f)::QAR2(A),XB(f)
      • Refutation
        • B(a);P_SPINB(a)
  • Actual
    • R(E);N_PINP(g)
    • Threat
      • R1(E)
    • Vars
      • B(f);CHECK::QAB(A)+K(C),XB(f)
      • P(g);CHECK,XR(E)::QAB(A)+K(C),XP(g)
      • R(l);N_GUARD,XS(I)::B(H),XQ(k)
      • B(a);::QAB(A)+K(C),XB(a)
      • P(e);::QAB(A)+K(C)
      • P(g);OGATEB::R(E)
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