MESON Chess Problem Database

Problem Display
PID: 99156 (5Nn1/6Rn/5pRN/2Bpk3/4p3/6K1/8/8 w - - 0 1)

Groeneveld, Cornelis

Sakkelet, 1991

5Nn1/6Rn/5pRN/2Bpk3/4p3/6K1/8/8

#2

6 + 6

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Se7
      • 2.Rxe7#
    • 1...f5
      • 2.Sf7#
      • 2.Sd7#
      • 2.Re6#
  • Keys
    • 1.Rxf6!
      • threat
        • 2.Sg4#
        • 2.Sd7#
        • 2.Rf5#
        • 2.Re6#
      • 1...Kxf6
        • 2.Bd4#
      • 1...Shxf6
        • 2.Rg5#
      • 1...Sxf8
        • 2.Sg4#
      • 1...Sgxf6
        • 2.Re7#
      • 1...Sxh6
        • 2.Sd7#
      • 1...e3
        • 2.Re6#
      • 1...d4
        • 2.Rf5#
      • 1...Sg5
        • 2.Sg4#
        • 2.Sd7#
        • 2.Rf5#
      • 1...Se7
        • 2.Sg4#
        • 2.Sd7#
        • 2.Re6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 1
  • Sets
    • S(f);N_GUARD::R(E),XS(f)
  • Actual
    • R(C);XP(d)
    • Threat
      • DUALS(4)
    • Vars
      • K(c);S_FLIGHT,XR(C)::B(B)
      • S(e);N_GUARD,SBLOCK,XR(C)::R(E)
      • S(e);XS(F)::S(D)
      • S(f);N_GUARD,SBLOCK,XR(C)::R(E)
      • S(f);XS(D)::S(F)
      • P(a);::R1(C)
      • P(b);::R1(C)
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