MESON Chess Problem Database

Problem Display
PID: 31733 (1B1R4/3N4/4n3/P1nk2pQ/3P2B1/2p5/K1N5/8 w - - 0 1)

Rowland, Frideswide F (Mrs TB, nee Beechey)

English Mechanic and World of Science, 1882

(First published on Fri Mar 3 1882)

1B1R4/3N4/4n3/P1nk2pQ/3P2B1/2p5/K1N5/8

#2

9 + 5

3467 Chess Blossoms 1883
15239 Valois Notebooks 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Sxc5+?
      • 1...Kc4
        • 2.Be2#
      • 1...Kc6
        • 2.Qe8#
      • 1...Sxd8!
    • 1.Sb6+?
      • 1...Ke4
        • 2.Qg6#
        • 2.Qh7#
      • 1...Kc6!
  • Keys
    • 1.Qe8!
      • 1...Kc4
        • 2.Se5#
      • 1...Ke4
        • 2.Sxc5#
      • 1...Kc6
        • 2.Sxc5#
      • 1...Sxd7
        • 2.Qxe6#
      • 1...Sxd4
        • 2.Sb6#
      • 1...Sxd8
        • 2.Sb6#
      • 1...Sb3
        • 2.Qxe6#
      • 1...Sd3
        • 2.Qxe6#
      • 1...Sa4
        • 2.Qxe6#
      • 1...Se4
        • 2.Sb6#
        • 2.Qxe6#
      • 1...Sa6
        • 2.Qxe6#
      • 1...Sb7
        • 2.Qxe6#
      • 1...Sf4
        • 2.Sb6#
      • 1...Sc7
        • 2.Sb6#
      • 1...Sg7
        • 2.Sb6#
      • 1...Sf8
        • 2.Sb6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 15
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(G);CHECK,XS(b)
      • Vars
        • K(c);N_SPINP(d),S_FLIGHT::B(D)
        • K(c);N_SPINP(d),S_FLIGHT::QAB(F)
      • Refutation
        • S(e);XR(I)
    • Try
      • S(G);CHECK
      • Refutation
        • K(c);N_SPINP(d),S_FLIGHT
  • Actual
    • Q(F);N_PINP(d)
    • Vars
      • K(c);S_FLIGHT::S(G)
      • K(c);P_SPINS(e),S_FLIGHT::S(G),XS(b)
      • K(c);S_FLIGHT::QAB(F)+S(G),XS(b)
      • S(b);N_GUARD,P_SPINS(b),XS(G)::QAB1(F),XS(e)
      • S(e);XP(C)::R(I)+S(G),DCHECK
      • S(e);XR(I)::S(G)
      • S(b);N_GUARD::QAB1(F),XS(e)
      • S(e);::R(I)+S(G),DCHECK
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