MESON Chess Problem Database

Problem Display
PID: 52154 (7N/1pNK1pBp/4pp1r/P1k5/1RpRB2b/P4Pp1/bP3PP1/5q2 w - - 0 1)

le Grand, Piet

4th Prize, Scacchi e Scienze Applicate, 2001

7N/1pNK1pBp/4pp1r/P1k5/1RpRB2b/P4Pp1/bP3PP1/5q2

#2

13 + 12

102 Probleemblad 2004

SOLUTION

  • SOUND
  • Sets
    • 1...c3
      • 2.Bf8#
    • 1...e5
      • 2.Rd5#
    • 1...f5
      • 2.Rb5#
  • Tries
    • 1.Rd2?
      • threat
        • 2.Bf8#
        • 2.Rb5#
      • 1...c3
        • 2.Bf8#
      • 1...f5
        • 2.Bd4#
        • 2.Rb5#
      • 1...b5
        • 2.Sa6#
        • 2.Bf8#
        • 2.Rxb5#
      • 1...Qd3+!
    • 1.Rd3?
      • threat
        • 2.Bf8#
        • 2.Rb5#
      • 1...cxd3
        • 2.Bf8#
      • 1...c3
        • 2.Bf8#
      • 1...f5
        • 2.Bd4#
        • 2.Rb5#
      • 1...b5
        • 2.Sa6#
        • 2.Bf8#
        • 2.Rxb5#
      • 1...Qxd3+!
    • 1.Rd6?
      • threat
        • 2.Rb5#
      • 1...b5
        • 2.Sa6#
        • 2.Rxb5#
      • 1...c3!
  • Keys
    • 1.Sxf7!
      • threat
        • 2.Sxe6#
      • 1...Kxd4
        • 2.Sxe6#
      • 1...c3
        • 2.Bf8#
      • 1...e5
        • 2.Se6#
        • 2.Rd5#
      • 1...f5
        • 2.Rb5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • P(d);::B(L)
    • P(g);N_GUARD::R1(G)
    • P(h);::R1(F)
  • Tries
    • Try
      • R(G);
      • Threat
        • DUALS(2)
      • Vars
        • P(d);::B(L)
      • Refutation
        • Q(a);CHECK
    • Try
      • R(G);
      • Threat
        • DUALS(2)
      • Vars
        • P(d);XR(G)::B(L)
        • P(d);::B(L)
      • Refutation
        • Q(a);CHECK,XR(G)
    • Try
      • R(G);
      • Threat
        • R1(F)
      • Refutation
        • P(d);
  • Actual
    • S(M);XP(k)
    • Threat
      • S(J),XP(g)
    • Vars
      • K(f);P_SPINP(d),S_FLIGHT,XR(G)::S(J),XP(g)
      • P(d);::B(L)
      • P(h);::R1(F)
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