MESON Chess Problem Database

Problem Display
PID: 242966 (8/5pBK/1pp1rN1p/4k1p1/1QP3P1/1b1p2P1/2N5/4r3 w - - 0 1)

Blake, Percy Francis

Bradford Weekly Telegraph, 1905

(First published on Sat Mar 11 1905)

8/5pBK/1pp1rN1p/4k1p1/1QP3P1/1b1p2P1/2N5/4r3

#2

8 + 10

15239 Valois Notebooks 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Re4
      • 2.Sd7#
    • 1...Rd6
      • 2.Qxe1#
    • 1...Rxf6
      • 2.Qe7#
    • 1...Re7
      • 2.Qxe7#
    • 1...b5
      • 2.Qc5#
  • Tries
    • 1.Se8+?
      • 1...Rf6
        • 2.Qxe1#
        • 2.Qe7#
      • 1...f6
        • 2.Qxe1#
      • 1...Ke4!
  • Keys
    • 1.Bf8!
      • threat
        • 2.Qc3#
      • 1...Kxf6
        • 2.Bg7#
      • 1...Rxf6
        • 2.Qxe1#
      • 1...Rd6
        • 2.Qxd6#
      • 1...Re7
        • 2.Qxe7#
      • 1...Re8
        • 2.Qd6#
      • 1...Re4
        • 2.Sd7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • R(a);SBLOCK::B(G)+S(F),DCHECK
    • R(h);SBLOCK::QAR(C),XR(a)
    • R(h);OGATEB,P_SPINR(h),XS(F)::QAR2(C)
    • R(h);OGATEB::QAR2(C),XR(h)
    • P(f);N_GUARD::QAR2(C)
  • Tries
    • Try
      • S(F);CHECK
      • Vars
        • P(j);P_SPINP(j)::QAR(C),XR(a)
      • Refutation
        • K(d);P-FLIGHT
  • Actual
    • B(G);
    • Threat
      • QAB(C)
    • Vars
      • K(d);OGATEB,S_FLIGHT,XS(F)::B(G)
      • R(h);SBLOCK,XS(F)::QAR(C),XR(a)
      • R(h);N_GUARD::QAB1(C),XR(h)
      • R(h);OGATEB::QAR2(C),XR(h)
      • R(h);N_GUARD::QAB1(C)
      • R(a);SBLOCK::S(F)
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