MESON Chess Problem Database

Problem Display
PID: 136877 (2N4B/8/N2R1R1K/3nqP2/n2kpp2/8/4P3/2Q5 w - - 0 1)

Baird, Edith Elina Helen (Mrs WJ)

The Field, 1922

(First published on Sat Aug 12 1922)

2N4B/8/N2R1R1K/3nqP2/n2kpp2/8/4P3/2Q5

#2

9 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Qxd6
      • 2.Rxd6#
    • 1...Qxf6+
      • 2.Bxf6#
    • 1...Qxf5
      • 2.Rxf5#
    • 1...Qe6
      • 2.Rfxe6#
    • 1...Sb2
      • 2.Qc5#
    • 1...Sc5
      • 2.Qxc5#
    • 1...Sb6
      • 2.Qc5#
  • Tries
    • 1.Rxd5+?
      • 1...Qxd5
        • 2.Rd6#
      • 1...Kxd5!
  • Keys
    • 1.Sb6!
      • threat
        • 2.Qd2#
      • 1...Qxf6+
        • 2.Bxf6#
      • 1...Qxd6
        • 2.Rxd6#
      • 1...Qxf5
        • 2.Rxf5#
      • 1...Sxb6
        • 2.Qc5#
      • 1...Qe6
        • 2.Rfxe6#
      • 1...Qe7
        • 2.Rxd5#
      • 1...Qe8
        • 2.Rxd5#
      • 1...e3
        • 2.Qc4#
      • 1...Sb2
        • 2.Qc5#
      • 1...Sc5
        • 2.Qxc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • Q(f);N_SPINS(e),OGATE,P_PINR(F),XR(E)::B(I)+R(F),XQ(f)
    • Q(f);CHECK,OGATE,P_SPINQ(f),XR(F)::B(I),XQ(f)
    • Q(f);OGATE,XP(C)::B(I)+R(F),XQ(f)
    • Q(f);OGATEB,P_PINR(F)::B(I)+R(F),XQ(f)
    • S(a);N_GUARD::QAB1(A)
    • S(a);N_GUARD::QAB1(A),XS(a)
  • Tries
    • Try
      • R(E);CHECK,XS(e)
      • Vars
        • Q(f);XR(E)::B(I)+R(F)
      • Refutation
        • K(b);P-FLIGHT,XR(E)
  • Actual
    • S(H);
    • Threat
      • QAR2(A)
    • Vars
      • Q(f);CHECK,OGATE,P_SPINQ(f),XR(F)::B(I),XQ(f)
      • Q(f);N_SPINS(e),OGATE,P_PINR(F),XR(E)::B(I)+R(F),XQ(f)
      • Q(f);OGATE,XP(C)::B(I)+R(F),XQ(f)
      • S(a);N_GUARD,XS(H)::QAB1(A)
      • Q(f);OGATEB,P_PINR(F)::B(I)+R(F),XQ(f)
      • Q(f);N_GUARD::R1(E),XS(e)
      • P(c);SBLOCK::QAR1(A)
      • S(a);N_GUARD::QAB1(A)
      • S(a);N_GUARD::QAB1(A),XS(a)
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