MESON Chess Problem Database

Problem Display
PID: 34444 (8/B4Kp1/2p5/2rN2p1/R1p1k1P1/3bNpQ1/3R4/4r3 w - - 0 1)

Shire, David J

The Problemist, 1996

8/B4Kp1/2p5/2rN2p1/R1p1k1P1/3bNpQ1/3R4/4r3

#2

8 + 9

3256 David Shire Selected Chess Problems 2001

SOLUTION

  • SOUND
  • Sets
    • 1...Kd4
      • 2.Rxc4#
    • 1...Ra5
      • 2.Sc3#
    • 1...Rb5
      • 2.Sc3#
  • Keys
    • 1.Sxc4!
      • threat
        • 2.Qe5#
      • 1...Kd4
        • 2.Sce3#
      • 1...Kxd5
        • 2.Sb6#
      • 1...Rxc4
        • 2.Sc3#
      • 1...Rxd5
        • 2.Sd6#
      • 1...Bxc4
        • 2.Qxe1#
      • 1...f2
        • 2.Qxd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 5
    • REMOVED MATES = 2
  • Sets
    • K(e);P-FLIGHT,P_SPINB(b),P_SPINR(f)::R1(D),XP(d)
    • R(f);::S(F)
  • Actual
    • S(B);XP(d)
    • Threat
      • QAR1(C)
    • Vars
      • K(e);P-FLIGHT,P_SPINB(b),P_SPINR(f)::R(D)+S(B)
      • K(e);P_SPINB(b),S_FLIGHT,XS(F)::S(B)
      • R(f);P_SPINR(f),XS(B)::S(F)
      • R(f);SBLOCK,XS(F)::R(D)+S(B),DCHECK
      • B(b);N_GUARD,P_PINS(F),P_SPINB(b),XS(B)::QAR(C),XR(a)
      • P(c);OGATE::QAB1(C),XB(b)
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