MESON Chess Problem Database

Problem Display
PID: 79075 (3QR1n1/pp4bb/3P4/2N2p2/1P1kpN2/2p5/BnP4K/4R3 w - - 0 1)

Robert, Philippe

Comm., Die Schwalbe, 2007

3QR1n1/pp4bb/3P4/2N2p2/1P1kpN2/2p5/BnP4K/4R3

#2

10 + 10

23 Die Schwalbe 2013

SOLUTION

  • SOUND
  • Sets
    • 1...Be5
      • 2.Se6#
    • 1...Sc4
      • 2.Sb3#
    • 1...e3
      • 2.Se2#
  • Tries
    • 1.Qa5?
      • threat
        • 2.Sce6#
      • 1...e3
        • 2.Se2#
      • 1...b5!
  • Keys
    • 1.Qg5!
      • threat
        • 2.Se2#
      • 1...Se7
        • 2.Qxg7#
      • 1...Be5
        • 2.Se6#
      • 1...Sc4
        • 2.Sb3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • B(h);P_PINS(F),SBLOCK::S(G)
    • S(a);SBLOCK::S(G)
    • P(d);::S(F)
  • Tries
    • Try
      • Q(I);
      • Threat
        • S(G)
      • Vars
        • P(d);::S(F)
      • Refutation
        • P(g);
  • Actual
    • Q(I);
    • Threat
      • S(F)
    • Vars
      • S(j);N_GUARD::QAB(I),XB(h)
      • B(h);P_PINS(F),SBLOCK::S(G)
      • S(a);SBLOCK::S(G)
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