MESON Chess Problem Database

Problem Display
PID: 94555 (3R3b/2Q5/r2r4/1p1k1N1R/n3NPB1/1P6/3K4/7n w - - 0 1)

Rowland, Frideswide F (Mrs TB, nee Beechey)

British Chess Magazine, 1881

3R3b/2Q5/r2r4/1p1k1N1R/n3NPB1/1P6/3K4/7n

#2

9 + 7

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Ke6+
      • 2.Sd4#
      • 2.Sfxd6#
    • 1...b4
      • 2.Qc4#
  • Tries
    • 1.Qb7+?
      • 1...Ke6+
        • 2.Sd4#
        • 2.Sfxd6#
      • 1...Rc6!
    • 1.Qf7+?
      • 1...Kc6+
        • 2.Rxd6#
      • 1...Kxe4+!
  • Keys
    • 1.Ke3!
      • threat
        • 2.Se7#
        • 2.Sg7#
      • 1...Bd4+
        • 2.Sxd4#
      • 1...Ke6
        • 2.Sfg3#
        • 2.Sd4#
        • 2.Sh4#
        • 2.Sfxd6#
        • 2.Sh6#
        • 2.Sg7#
      • 1...Ba1
        • 2.Sd4#
        • 2.Se7#
      • 1...Bb2
        • 2.Sd4#
        • 2.Se7#
      • 1...Bc3
        • 2.Sd4#
        • 2.Se7#
      • 1...Be5
        • 2.Se7#
      • 1...Bf6
        • 2.Se7#
      • 1...Bg7
        • 2.Se7#
        • 2.Sxg7#
      • 1...Sg3
        • 2.Se7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • P(c);N_GUARD::QAB1(H)
  • Tries
    • Try
      • Q(H);CHECK
      • Refutation
        • R(e);N_SPINR(f),P_SPINR(e)
    • Try
      • Q(H);CHECK
      • Vars
        • K(d);CHECK,N_SPINR(f),S_FLIGHT::R1(I),XR(f)
      • Refutation
        • K(d);CHECK,N_SPINR(f),S_FLIGHT,XS(C)
  • Actual
    • K(A);S_FLIGHT
    • Threat
      • DUALS(2)
    • Vars
      • B(g);CHECK,N_GUARD::R(G)+S(F),XB(g)
      • B(g);::S(F)
      • B(g);::R(G)+S(F),DCHECK
      • S(a);::R(G)+S(F),DCHECK
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