MESON Chess Problem Database

Problem Display
PID: 77110 (3N3B/3Rn3/Kp3r2/pQp1k3/1b3p2/5p2/r3q3/1B2R3 w - - 0 1)

Holladay, Edgar Dinwiddie

The Tablet, 1958

(First published on Sat Dec 20 1958)

3N3B/3Rn3/Kp3r2/pQp1k3/1b3p2/5p2/r3q3/1B2R3

#2

7 + 11

6232 Holladay Chess Problems 2007

SOLUTION

  • SOUND
  • Tries
    • 1.Qc4?
      • threat
        • 2.Sf7#
      • 1...b5+
        • 2.Qe6#
      • 1...Qe4
        • 2.Qe6#
        • 2.Qxe4#
      • 1...Sd5
        • 2.Rxd5#
      • 1...Rc2!
  • Keys
    • 1.Qd3!
      • threat
        • 2.Rxe7#
      • 1...b5+
        • 2.Qd6#
      • 1...Qe4
        • 2.Qxe4#
      • 1...Sd5
        • 2.Rxd5#
      • 1...Sf5
        • 2.Rd5#
      • 1...Sc6
        • 2.Rd5#
      • 1...Sg6
        • 2.Rd5#
      • 1...Sc8
        • 2.Rd5#
      • 1...Sg8
        • 2.Rd5#
      • 1...c4
        • 2.Qd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 9
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(C);N_PINP(g)
      • Threat
        • S(F)
      • Vars
        • P(i);CHECK,N_PINQ(C)::QAR1(C)
        • S(k);N_GUARD::R1(E),XS(k)
      • Refutation
        • R(a);
  • Actual
    • Q(C);N_PINP(g)
    • Threat
      • R(E),XS(k)
    • Vars
      • P(i);CHECK,N_PINQ(C)::QAB1(C)
      • Q(b);N_PINQ(C)::QAR1(C),XQ(b)
      • S(k);N_GUARD::R1(E),XS(k)
      • S(k);N_GUARD::R1(E)
      • P(g);N_PINQ(C)::QAB1(C)
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