MESON Chess Problem Database

Problem Display
PID: 209830 (1N2N3/q1Pp1pP1/B2PkBP1/1r6/4P2n/2pPp2r/5b1p/Rb5K w - - 0 1)

Ernst, Erich

Badische Neueste Nachrichten, 1988

1N2N3/q1Pp1pP1/B2PkBP1/1r6/4P2n/2pPp2r/5b1p/Rb5K

#2

12 + 12

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Rb2
      • 2.Bc4#
    • 1...Rb3
      • 2.Bc4#
    • 1...Rb6
      • 2.Bc4#
    • 1...Rb7
      • 2.Bc4#
    • 1...Rxb8
      • 2.Bc4#
    • 1...fxg6
      • 2.g8Q#
      • 2.g8B#
  • Keys
    • 1.Sc6!
      • threat
        • 2.Sd8#
      • 1...Qxc7
        • 2.Sd4#
      • 1...dxc6
        • 2.Bc8#
      • 1...Qb8
        • 2.Sd4#
      • 1...Qa8
        • 2.Sd4#
      • 1...Rb8
        • 2.Bc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 4
  • Sets
    • R(h);OGATE::B(E)
    • R(h);OGATE,XS(K)::B(E)
    • P(l);XP(H)::P=Q
  • Actual
    • S(K);
    • Threat
      • S(K)
    • Vars
      • Q(j);N_GUARD,XP(I)::S(K)
      • P(k);OGATEB,XS(K)::B(E)
      • Q(j);N_GUARD::S(K)
      • R(h);OGATE::B(E)
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