MESON Chess Problem Database

Problem Display
PID: 113363 (8/2Q2pr1/5NN1/3PPk2/5P2/bp3R1r/7p/7K w - - 0 1)

Sobek, Karel

Zemedelske noviny, 1974

8/2Q2pr1/5NN1/3PPk2/5P2/bp3R1r/7p/7K

#2

8 + 7

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rg3
      • 2.Sh4#
    • 1...Rh4
      • 2.Sxh4#
    • 1...Rxg6
      • 2.Qd7#
      • 2.Qc8#
    • 1...Bc1
      • 2.Se7#
    • 1...Bb2
      • 2.Se7#
    • 1...Be7
      • 2.Sxe7#
    • 1...b2
      • 2.Qc2#
  • Tries
    • 1.Qc4?
      • threat
        • 2.Qd3#
        • 2.Qe4#
      • 1...Rxf3
        • 2.Sh4#
        • 2.Qe4#
      • 1...Kxg6!
  • Keys
    • 1.Qc1!
      • threat
        • 2.Qb1#
      • 1...Kxg6
        • 2.f5#
      • 1...Rxf3
        • 2.Sh4#
      • 1...Bxc1
        • 2.Se7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 5
  • Sets
    • R(d);N_GUARD::S(G)
    • R(d);N_GUARD::S(G),XR(d)
    • B(b);N_GUARD::S(G)
    • B(b);N_GUARD::S(G),XB(b)
    • P(c);N_GUARD::QAB(H)
  • Tries
    • Try
      • Q(H);
      • Threat
        • DUALS(2)
      • Refutation
        • K(e);S_FLIGHT,XS(G)
  • Actual
    • Q(H);
    • Threat
      • QAB(H)
    • Vars
      • K(e);OGATE,S_FLIGHT,XS(G)::P(C)
      • R(d);N_GUARD,XR(B)::S(G)
      • B(b);N_GUARD,XQ(H)::S(G)
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