MESON Chess Problem Database

Problem Display
PID: 76779 (2R2B2/n6B/2q2p2/3Qprp1/5bp1/1Nkpr1p1/3Rp1K1/4N3 w - - 0 1)

Holladay, Edgar Dinwiddie

Chess, 1954

2R2B2/n6B/2q2p2/3Qprp1/5bp1/1Nkpr1p1/3Rp1K1/4N3

#2

8 + 13

6232 Holladay Chess Problems 2007

SOLUTION

  • SOUND
  • Sets
    • 1...Qc4
      • 2.Qxc4#
    • 1...Re4
      • 2.Qxd3#
    • 1...Sb5
      • 2.Rxc6#
  • Tries
    • 1.Qxc6+?
      • 1...Kxb3
        • 2.Bg8#
        • 2.Qc4#
      • 1...Sxc6!
  • Keys
    • 1.Bg8!
      • 1...Qxc8
        • 2.Qa5#
      • 1...Sxc8
        • 2.Qxc6#
      • 1...Qc4
        • 2.Qxc4#
      • 1...Qc5
        • 2.Qxc5#
      • 1...Qc7
        • 2.Qa5#
      • 1...Rf3
        • 2.Qa5#
      • 1...Re4
        • 2.Qxd3#
      • 1...Sb5
        • 2.Rxc6#
        • 2.Qxc6#
      • 1...e4
        • 2.Qd4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 1
  • Sets
    • Q(k);N_PINQ(E)::QAR1(E),XQ(k)
    • R(d);N_PINQ(E)::QAR1(E),XP(c)
    • S(m);N_GUARD::R(G),XQ(k)
  • Tries
    • Try
      • Q(E);CHECK,N_SPINQ(E),XQ(k)
      • Refutation
        • S(m);P_SPINS(m),XQ(E)
  • Actual
    • B(F);
    • Vars
      • Q(k);N_PINQ(E),N_SPINQ(k),XR(G)::QAB(E)
      • S(m);N_GUARD,N_SPINQ(k),XR(G)::QAR(E),XQ(k)
      • Q(k);N_PINQ(E)::QAR1(E),XQ(k)
      • Q(k);N_PINQ(E)::QAR2(E),XQ(k)
      • Q(k);N_PINQ(E)::QAB(E)
      • R(d);N_PINQ(E)::QAB(E)
      • R(d);N_PINQ(E)::QAR1(E),XP(c)
      • P(h);N_PINQ(E)::QAB1(E)
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Developed and maintained by Brian Stephenson.
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