MESON Chess Problem Database

Problem Display
PID: 103698 (r3k3/3p4/p6b/4N1n1/R5N1/B7/8/1K3Q2 w q - 0 1)

Rowland, Frideswide F (Mrs TB, nee Beechey)

Science Monthly, 1884

r3k3/3p4/p6b/4N1n1/R5N1/B7/8/1K3Q2

#2

6 + 6

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rd8
      • 2.Sf6#
    • 1...Bf8
      • 2.Qxf8#
  • Tries
    • 1.Qf7+?
      • 1...Kd8
        • 2.Qxd7#
      • 1...Sxf7!
  • Keys
    • 1.Qb5!
      • threat
        • 2.Qxd7#
      • 1...Kd8
        • 2.Qxd7#
      • 1...0-0-0
        • 2.Rc4#
      • 1...axb5
        • 2.Rxa8#
      • 1...Ra7
        • 2.Qb8#
      • 1...Rb8
        • 2.Qxb8#
      • 1...Rd8
        • 2.Sf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 1
  • Sets
    • R(e);SBLOCK::S(E)
    • B(c);N_GUARD::QAR1(B),XB(c)
  • Tries
    • Try
      • Q(B);CHECK
      • Vars
        • K(f);P-FLIGHT::QAR1(B),XP(d)
      • Refutation
        • S(a);XQ(B)
  • Actual
    • Q(B);P_PINP(d)
    • Threat
      • QAB1(B),XP(d)
    • Vars
      • K(f);N_SPINP(d),P-FLIGHT::QAR1(B),XP(d)
      • K(f);0-0-0,N_SPINP(d),OGATEB::R(D)
      • P(b);N_SPINP(d),OGATE,XQ(B)::R(D),XR(e)
      • R(e);N_GUARD::QAR(B)
      • R(e);N_GUARD,P_PINQ(B)::QAR(B),XR(e)
      • R(e);SBLOCK::S(E)
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