MESON Chess Problem Database

Problem Display
PID: 108256 (3R4/2n5/qRb2N2/PnkP4/6Q1/b4B2/7K/8 w - - 0 1)

Driver, John Edward

Chess, 1956

3R4/2n5/qRb2N2/PnkP4/6Q1/b4B2/7K/8

#2

8 + 6

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Qc8
      • 2.Rxc6#
    • 1...Qxa5
      • 2.Rxc6#
    • 1...Qa7
      • 2.Rxc6#
    • 1...Bxd5
      • 2.Sd7#
    • 1...Bb7
      • 2.Sd7#
    • 1...Bd7
      • 2.Sxd7#
    • 1...Ba8
      • 2.Sd7#
  • Keys
    • 1.Be2!
      • threat
        • 2.Qc4#
      • 1...Qxa5
        • 2.Rxc6#
      • 1...Bxd5
        • 2.Sd7#
      • 1...Sc3
        • 2.Qg1#
      • 1...Sd4
        • 2.Se4#
      • 1...Sd6
        • 2.Qg1#
      • 1...Sa7
        • 2.Qg1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 5
  • Sets
    • Q(d);N_GUARD::R1(F),XB(e)
    • Q(d);N_GUARD,XP(D)::R1(F),XB(e)
    • B(e);N_GUARD,XP(E)::S(G)
    • B(e);N_GUARD::S(G)
    • B(e);N_GUARD::S(G),XB(e)
  • Actual
    • B(B);
    • Threat
      • QAR1(C)
    • Vars
      • Q(d);N_GUARD,XP(D)::R1(F),XB(e)
      • B(e);N_GUARD,SBLOCK,XP(E)::S(G)
      • S(b);N_GUARD::QAB(C)
      • S(b);SBLOCK::S(G)
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