MESON Chess Problem Database

Problem Display
PID: 134978 (8/1p1P1rn1/1p2P1pn/5kPp/3PR2P/4P3/2R1K3/1B6 w - - 0 1)

Heyl, Peter

Troll, 2008

8/1p1P1rn1/1p2P1pn/5kPp/3PR2P/4P3/2R1K3/1B6

#2

10 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Kxe4
      • 2.Rc5#
    • 1...b5
      • 2.Rc5#
  • Tries
    • 1.Rb2?
      • threat
        • 2.Rb5#
      • 1...Sxe6
        • 2.Rf4#
      • 1...Sg4
        • 2.Re5#
      • 1...b5
        • 2.Rxb5#
      • 1...Rxd7!
    • 1.d8S?
      • threat
        • 2.Rf4#
      • 1...Kxe4
        • 2.Rc5#
      • 1...Sxe6!
  • Keys
    • 1.Rc1!
      • threat
        • 2.Rf1#
      • 1...Sxe6
        • 2.Rf4#
      • 1...Sg4
        • 2.Re5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • K(a);S_FLIGHT,XR(F)::B(A)+R(B)
    • P(c);N_GUARD::R(B)
  • Tries
    • Try
      • R(B);
      • Threat
        • R(B)
      • Vars
        • S(h);SBLOCK,XP(I)::B(A)+R(F),DCHECK
        • S(e);SBLOCK::B(A)+R(F),DCHECK
        • P(c);::R(B),XP(c)
      • Refutation
        • R(g);XP(J)
    • Try
      • P(J);
      • Threat
        • R1(F)
      • Vars
        • K(a);S_FLIGHT,XR(F)::B(A)+R(B)
      • Refutation
        • S(h);XP(I)
  • Actual
    • R(B);
    • Threat
      • R(B)
    • Vars
      • S(h);SBLOCK,XP(I)::B(A)+R(F),DCHECK
      • S(e);SBLOCK::B(A)+R(F),DCHECK
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