MESON Chess Problem Database

Problem Display
PID: 216135 (5R2/1pK5/4p3/pRNNk1p1/4P1p1/1Bp5/5P2/6B1 w - - 0 1)

van Sinttruijen, JJ

Probleemblad, 1980

5R2/1pK5/4p3/pRNNk1p1/4P1p1/1Bp5/5P2/6B1

#2

9 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Kd4
      • 2.f4#
  • Tries
    • 1.Rb4?
      • threat
        • 2.Sd3#
        • 2.Sd7#
      • 1...exd5
        • 2.Rf5#
      • 1...axb4!
    • 1.Rf5+?
      • 1...Kd4
        • 2.f3#
        • 2.f4#
      • 1...exf5!
    • 1.f3?
      • threat
        • 2.Sd3#
        • 2.Sd7#
      • 1...exd5
        • 2.Rf5#
      • 1...gxf3!
  • Keys
    • 1.Sf6!
      • threat
        • 2.Sxe6#
      • 1...Kd4
        • 2.f4#
      • 1...Kf4
        • 2.Sfd7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(d);S_FLIGHT::B(A)+P(B)
  • Tries
    • Try
      • R(E);
      • Threat
        • DUALS(2)
      • Vars
        • P(f);N_GUARD,XS(G)::R1(I)
      • Refutation
        • P(c);XR(E)
    • Try
      • R(I);CHECK
      • Refutation
        • P(f);XR(I)
    • Try
      • P(B);
      • Threat
        • DUALS(2)
      • Vars
        • P(f);N_GUARD,XS(G)::R1(I)
      • Refutation
        • P(b);XP(B)
  • Actual
    • S(G);
    • Threat
      • R(E)+S(F),XP(f)
    • Vars
      • K(d);S_FLIGHT::B(A)+P(B)
      • K(d);S_FLIGHT::R(I)+S(G)
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