MESON Chess Problem Database

Problem Display
PID: 49525 (5Q2/1n6/3pp3/1K6/3kp3/1pbN4/1R2R3/B3N3 w - - 0 1)

Baird, Edith Elina Helen (Mrs WJ)

Pen & Pencil, 1889

5Q2/1n6/3pp3/1K6/3kp3/1pbN4/1R2R3/B3N3

#2

7 + 7

3262 700 Chess Problems 1902

SOLUTION

  • SOUND
  • Sets
    • 1...Sa5
      • 2.Qxd6#
    • 1...Sc5
      • 2.Qxd6#
    • 1...Sd8
      • 2.Qxd6#
  • Tries
    • 1.Qg7+?
      • 1...Kd5
        • 2.Sf4#
      • 1...e5!
    • 1.Qf6+?
      • 1...Kd5
        • 2.Sf4#
      • 1...e5!
    • 1.Qh8+?
      • 1...Kd5
        • 2.Sf4#
      • 1...e5!
  • Keys
    • 1.Sb4!
      • 1...Ke5
        • 2.Sf3#
      • 1...Bxe1
        • 2.Rbd2#
      • 1...Bxb2
        • 2.Bxb2#
      • 1...Bxb4
        • 2.Rbd2#
      • 1...Bd2
        • 2.Rbxd2#
      • 1...e3
        • 2.Qf4#
      • 1...Sa5
        • 2.Qxd6#
      • 1...Sc5
        • 2.Qxd6#
      • 1...Sd8
        • 2.Qxd6#
      • 1...d5
        • 2.Sc6#
      • 1...e5
        • 2.Rbd2#

This is a version

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
    • S(g);N_GUARD::QAR2(G),XP(e)
  • Tries
    • Try
      • Q(G);CHECK
      • Vars
        • K(c);P-FLIGHT::S(E)
      • Refutation
        • P(f);P_SPINP(f)
    • Try
      • Q(G);CHECK
      • Vars
        • K(c);P-FLIGHT::S(E)
      • Refutation
        • P(f);P_SPINP(f)
    • Try
      • Q(G);CHECK
      • Vars
        • K(c);P-FLIGHT::S(E)
      • Refutation
        • P(f);P_SPINP(f)
  • Actual
    • S(E);
    • Vars
      • K(c);P_SPINP(d),S_FLIGHT::S(B)
      • B(b);XS(B)::B(A)+R(C),DCHECK
      • B(b);OGATE,P_SPINB(b),XR(C)::B(A),XB(b)
      • B(b);XS(E)::B(A)+R(C),DCHECK
      • B(b);::B(A)+R(C),DCHECK,XB(b)
      • P(d);OGATEB::QAR2(G)
      • S(g);N_GUARD::QAR2(G),XP(e)
      • P(e);SBLOCK::S(E)
      • P(f);SBLOCK::R(C)
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