MESON Chess Problem Database

Problem Display
PID: 232550 (8/8/2n1p3/1pQ1P3/3ppp2/5kNP/2R4P/2B4K w - - 0 1)

Gruber, Lutz-Dieter

Freie Presse, 1987

8/8/2n1p3/1pQ1P3/3ppp2/5kNP/2R4P/2B4K

#2

8 + 7

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...d3
      • 2.Rf2#
      • 2.Qf2#
    • 1...e3
      • 2.Qxc6#
    • 1...fxg3
      • 2.Qf8#
  • Tries
    • 1.Sf5?
      • threat
        • 2.Sh4#
      • 1...e3
        • 2.Qxc6#
      • 1...exf5!
    • 1.Qxd4?
      • threat
        • 2.Rf2#
        • 2.Qf2#
        • 2.Qd1#
        • 2.Qxe4#
      • 1...fxg3
        • 2.Qe3#
        • 2.Qd1#
      • 1...e3
        • 2.Qe4#
      • 1...Sxd4!
    • 1.Qc4?
      • threat
        • 2.Qf1#
        • 2.Qe2#
      • 1...d3
        • 2.Qxe4#
      • 1...bxc4!
  • Keys
    • 1.Kg1!
      • threat
        • 2.Rf2#
      • 1...fxg3
        • 2.Qf8#
      • 1...e3
        • 2.Qxc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • P(c);OGATEB::QAB(G),XS(f)
    • P(d);OGATEB,XS(E)::QAR(G)
  • Tries
    • Try
      • S(E);
      • Threat
        • S(E)
      • Vars
        • P(c);OGATEB::QAB(G),XS(f)
      • Refutation
        • P(g);XS(E)
    • Try
      • Q(G);XP(b)
      • Threat
        • DUALS(4)
      • Vars
        • P(c);::QAB1(G)
      • Refutation
        • S(f);XQ(G)
    • Try
      • Q(G);
      • Threat
        • DUALS(2)
      • Vars
        • P(b);OGATE::QAB1(G),XP(c)
      • Refutation
        • P(e);XQ(G)
  • Actual
    • K(B);P-FLIGHT
    • Threat
      • R1(C)
    • Vars
      • P(d);OGATEB,XS(E)::QAR(G)
      • P(c);OGATEB::QAB(G),XS(f)
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