MESON Chess Problem Database

Problem Display
PID: 51292 (3r4/3R2Bn/3r2QK/2p3pp/4n2q/2pk4/B1R3N1/N3b3 w - - 0 1)

Holladay, Edgar Dinwiddie

Manchester Guardian, 1956

3r4/3R2Bn/3r2QK/2p3pp/4n2q/2pk4/B1R3N1/N3b3

#2

8 + 11

6232 Holladay Chess Problems 2007

SOLUTION

  • SOUND
  • Sets
    • 1...Ra8
      • 2.Rxd6#
    • 1...Rb8
      • 2.Rxd6#
    • 1...Rc8
      • 2.Rxd6#
    • 1...Re8
      • 2.Rxd6#
    • 1...Rf8
      • 2.Rxd6#
    • 1...Rg8
      • 2.Rxd6#
    • 1...Rh8
      • 2.Rxd6#
  • Keys
    • 1.Qe6!
      • threat
        • 2.Bc4#
      • 1...Sef6
        • 2.Qe3#
      • 1...Shf6
        • 2.Qc4#
      • 1...Rd5
        • 2.Qxd5#
      • 1...Sd2
        • 2.Rxc3#
      • 1...Sf2
        • 2.Sxe1#
      • 1...Sg3
        • 2.Sxe1#
      • 1...c4
        • 2.Bxc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 7
  • Sets
    • R(k);N_GUARD::R(G),XR(i)
  • Actual
    • Q(E);N_PINS(d)
    • Threat
      • B(B)
    • Vars
      • S(d);N_PINQ(E)::QAR1(E)
      • S(j);N_PINQ(E)::QAB1(E)
      • R(i);N_PINQ(E)::QAR2(E),XR(i)
      • S(d);N_GUARD,SBLOCK,S_CUTB(a)::R1(C),XP(b)
      • S(d);S_CUTQ(e)::S(D),XB(a)
      • P(f);::B(B),XP(f)
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