MESON Chess Problem Database

Problem Display
PID: 81851 (2N5/1ppK1p1b/4Br2/pk2b2R/1NR5/B7/8/5Q2 w - - 0 1)

Reeves, Alfred Christopher

1st Prize, Correction Ty., 2008

2N5/1ppK1p1b/4Br2/pk2b2R/1NR5/B7/8/5Q2

#2

8 + 8

56 The Problemist 2008

SOLUTION

  • SOUND
  • Tries
    • 1.Sa6?
      • threat
        • 2.Sxc7#
        • 2.Rb4#
      • 1...Kxa6
        • 2.Rc6#
      • 1...Rxf1
        • 2.Sxc7#
      • 1...a4
        • 2.Rc5#
      • 1...Rf5
        • 2.Rb4#
        • 2.Rf4#
      • 1...Bd3
        • 2.Sxc7#
      • 1...Bf5
        • 2.Rb4#
        • 2.Re4#
      • 1...c5
        • 2.Rb4#
      • 1...c6
        • 2.Sc7#
        • 2.Rb4#
      • 1...bxa6!
    • 1.Rc5+?
      • 1...Kxc5
        • 2.Sc2#
        • 2.Sc6#
        • 2.Qc4#
      • 1...Ka4!
  • Keys
    • 1.Sd5!
      • threat
        • 2.Sxc7#
      • 1...Ka6
        • 2.Rc6#
      • 1...a4
        • 2.Rc5#
      • 1...Rf5
        • 2.Rf4#
      • 1...Bf5
        • 2.Re4#
      • 1...c5
        • 2.Rb4#
      • 1...c6
        • 2.Sc7#

This is a version of 81849

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(C);
      • Threat
        • DUALS(2)
      • Vars
        • K(b);N_SPINB(c),S_FLIGHT,XS(C)::QAB(A)+R(D),DCHECK
        • R(d);XQ(A)::S(C),XP(f)
        • P(a);SBLOCK::QAB(A)+R(D),DCHECK
        • B(h);::S(C),XP(f)
        • P(f);N_SPINB(c)::QAB(A)+R(D),DCHECK
      • Refutation
        • P(e);XS(C)
    • Try
      • R(D);CHECK,N_PINB(c)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • S(C);N_PINB(c)
    • Threat
      • S(C),XP(f)
    • Vars
      • K(b);S_FLIGHT::QAB(A)+R(D),DCHECK
      • P(a);SBLOCK::QAB(A)+R(D),DCHECK
      • R(d);S_CUTB(h)::QAB(A)+R(D)
      • B(h);P_PINB(F),S_CUTR(d)::QAB(A)+R(D)
      • P(f);SBLOCK::QAB(A)+R(D),DCHECK
      • P(f);::S(C)
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