MESON Chess Problem Database

Problem Display
PID: 233489 (8/8/3q4/Q3NB2/N2k4/8/5K2/8 w - - 0 1)

Schreckenbach, Michael

Freie Presse, 1988

8/8/3q4/Q3NB2/N2k4/8/5K2/8

#2

5 + 2

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Qc5
      • 2.Qxc5#
    • 1...Qb8
      • 2.Qc5#
    • 1...Qd5
      • 2.Qc3#
    • 1...Qa6
      • 2.Qc5#
    • 1...Qe6
      • 2.Qc5#
    • 1...Qf6
      • 2.Qc5#
    • 1...Qg6
      • 2.Qc5#
    • 1...Qh6
      • 2.Qc5#
    • 1...Qd7
      • 2.Qc5#
    • 1...Qd8
      • 2.Qc5#
  • Keys
    • 1.Qb5!
      • threat
        • 2.Sf3#
      • 1...Qxe5
        • 2.Qd3#
      • 1...Qc5
        • 2.Qxc5#
      • 1...Qd5
        • 2.Qb2#
      • 1...Qa3
        • 2.Sc6#
      • 1...Qc6
        • 2.Sxc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 8
  • Sets
    • Q(b);N_GUARD::QAB1(C),XQ(b)
    • Q(b);N_GUARD::QAB1(C)
    • Q(b);SBLOCK::QAB1(C)
    • Q(b);N_GUARD,P_PINB(E)::QAB1(C)
  • Actual
    • Q(C);
    • Threat
      • S(D)
    • Vars
      • Q(b);SBLOCK,XS(D)::QAR1(C)
      • Q(b);N_GUARD::QAB1(C),XQ(b)
      • Q(b);SBLOCK::QAB(C)
      • Q(b);N_GUARD::S(D)
      • Q(b);N_GUARD::S(D),XQ(b)
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