MESON Chess Problem Database

Problem Display
PID: 266233 (4r3/3n4/4b1p1/1Q6/3kN3/3P4/3K4/7B w - - 0 1)

Michel, Francois

du Gres, Jacques

diagrammes, 1976

4r3/3n4/4b1p1/1Q6/3kN3/3P4/3K4/7B

#2

5 + 5

SOLUTION

  • SOUND
  • Sets
    • 1...Bd5
      • 2.Qb2#
    • 1...Sc5
      • 2.Qxc5#
    • 1...Se5
      • 2.Qc5#
    • 1...Sb6
      • 2.Qc5#
    • 1...Sf6
      • 2.Qc5#
    • 1...Sb8
      • 2.Qc5#
    • 1...Sf8
      • 2.Qc5#
  • Keys
    • 1.Sg5!
      • threat
        • 2.Sf3#
      • 1...Bd5
        • 2.Qxd5#
      • 1...Sc5
        • 2.Qb2#
      • 1...Rf8
        • 2.Sxe6#
      • 1...Bg4
        • 2.Qd5#
      • 1...Se5
        • 2.Qb6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 3
    • ADDED MATES = 2
    • REMOVED MATES = 4
  • Sets
    • B(b);SBLOCK::QAB(E)
    • S(d);N_GUARD::QAB1(E),XS(d)
    • S(d);N_GUARD::QAB1(E)
  • Actual
    • S(D);
    • Threat
      • S(D)
    • Vars
      • B(b);N_GUARD::QAR1(E),XB(b)
      • S(d);SBLOCK::QAB(E)
      • R(e);N_GUARD::S(D),XB(b)
      • B(b);N_GUARD::QAR1(E)
      • S(d);N_GUARD,SBLOCK::QAB(E)
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