MESON Chess Problem Database

Problem Display
PID: 179543 (1q1br3/1p3N2/r6p/1Q1n3N/2Rpk1Bp/2p2R2/p7/K7 w - - 0 1)

Schonholzer, Andreas

diagrammes, 1974

1q1br3/1p3N2/r6p/1Q1n3N/2Rpk1Bp/2p2R2/p7/K7

#2

7 + 12

SOLUTION

  • SOUND
  • Sets
    • 1...Sb4
      • 2.Qf5#
    • 1...Sf4
      • 2.Qf5#
    • 1...Sb6
      • 2.Qf5#
    • 1...Sf6
      • 2.Qf5#
    • 1...Sc7
      • 2.Qf5#
  • Tries
    • 1.Rc6?
      • threat
        • 2.Qd3#
      • 1...d3
        • 2.Rc4#
        • 2.Qxd3#
        • 2.Qc4#
      • 1...Sb4
        • 2.Qf5#
      • 1...Sf4
        • 2.Qf5#
      • 1...Sb6
        • 2.Qf5#
      • 1...Sf6
        • 2.Qf5#
      • 1...Sc7
        • 2.Sd6#
        • 2.Qf5#
      • 1...Se7
        • 2.Sf6#
      • 1...Se3!
  • Keys
    • 1.Rc7!
      • threat
        • 2.Qd3#
      • 1...Sxc7
        • 2.Qf5#
      • 1...d3
        • 2.Rc4#
        • 2.Qxd3#
        • 2.Qc4#
      • 1...Se3
        • 2.Rf4#
      • 1...Sb4
        • 2.Qf5#
      • 1...Sf4
        • 2.Qf5#
      • 1...Sb6
        • 2.Sd6#
        • 2.Qf5#
      • 1...Sf6
        • 2.Qf5#
      • 1...Se7
        • 2.Qe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • S(f);OGATE::QAB1(E)
  • Tries
    • Try
      • R(C);N_PINP(c)
      • Threat
        • QAB1(E)
      • Vars
        • S(f);OGATE::QAB1(E)
        • S(f);N_GUARD,S_CUTB(k)::S(F)
      • Refutation
        • S(f);
  • Actual
    • R(C);N_PINP(c)
    • Threat
      • QAB1(E)
    • Vars
      • S(f);OGATE,XR(C)::QAB1(E)
      • S(f);N_GUARD,SBLOCK::R1(B)
      • S(f);OGATE::QAB1(E)
      • S(f);OGATE::QAR1(E)
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