MESON Chess Problem Database

Problem Display
PID: 230905 (8/8/3p1Q2/1n1prbp1/2Npkp2/2p1Pp2/2P2P2/K3R3 w - - 0 1)

Ring, Ulrich

Deutsche Schachzeitung, 1962

8/8/3p1Q2/1n1prbp1/2Npkp2/2p1Pp2/2P2P2/K3R3

#2

7 + 11

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Re6
      • 2.exd4#
    • 1...Re7
      • 2.exd4#
    • 1...Re8
      • 2.exd4#
    • 1...Bh3
      • 2.exf4#
    • 1...Bg4
      • 2.exf4#
    • 1...Be6
      • 2.exf4#
    • 1...Bg6
      • 2.exf4#
    • 1...Bd7
      • 2.exf4#
    • 1...Bh7
      • 2.exf4#
    • 1...Bc8
      • 2.exf4#
    • 1...Sa3
      • 2.Sxd6#
    • 1...Sa7
      • 2.Sxd6#
    • 1...Sc7
      • 2.Sxd6#
  • Keys
    • 1.Qxd6!
      • threat
        • 2.Qxe5#
      • 1...Sxd6
        • 2.Sxd6#
      • 1...dxc4
        • 2.exd4#
      • 1...Re6
        • 2.exf4#
      • 1...Re7
        • 2.exf4#
      • 1...Re8
        • 2.exf4#

There are these versions: 82104

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 3
    • ADDED MATES = 2
    • REMOVED MATES = 10
  • Sets
    • R(h);::R(B)+P(E),XP(c)
    • B(i);::R(B)+P(E),XP(e)
    • S(f);N_GUARD::S(F),XP(k)
  • Actual
    • Q(G);XP(k)
    • Threat
      • QAR1(G),XR(h)
    • Vars
      • S(f);XQ(G)::S(F),XS(f)
      • P(g);XS(F)::R(B)+P(E),XP(c)
      • R(h);::R(B)+P(E),XP(e)
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