MESON Chess Problem Database

Problem Display
PID: 213230 (8/3p1nN1/r1Rp1Np1/r1p5/3k3b/3P2B1/1P2K3/5R2 w - - 0 1)

Ernst, Erich

Badische Neueste Nachrichten, 1990

8/3p1nN1/r1Rp1Np1/r1p5/3k3b/3P2B1/1P2K3/5R2

#2

8 + 9

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Se5
      • 2.Rf4#
    • 1...c4
      • 2.Rxc4#
    • 1...g5
      • 2.Sf5#
    • 1...dxc6
      • 2.Se6#
  • Keys
    • 1.Rf5!
      • threat
        • 2.Rd5#
      • 1...Bxf6
        • 2.Bf2#
      • 1...gxf5
        • 2.Sxf5#
      • 1...dxc6
        • 2.Se6#
      • 1...Se5
        • 2.Rf4#
      • 1...c4
        • 2.Rxc4#
      • 1...d5
        • 2.Rxd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • S(i);SBLOCK::R(A)
    • P(d);OGATE::R1(F),XP(d)
    • P(g);N_GUARD::S(H)
    • P(h);N_GUARD,XR(F)::S(H)
  • Actual
    • R(A);
    • Threat
      • R1(A)
    • Vars
      • B(b);N_GUARD,XS(G)::B(E)
      • P(g);XR(A)::S(H),XP(g)
      • P(h);N_GUARD,XR(F)::S(H)
      • S(i);SBLOCK::R(A)
      • P(d);OGATE::R1(F),XP(d)
      • P(f);::R1(A),XP(f)
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