MESON Chess Problem Database

Problem Display
PID: 2340 (bn4B1/R6n/1pkp4/2p3r1/P1P3r1/8/6p1/Q5K1 w - - 0 1)

Gardner, John Carey

Source?, 0000

bn4B1/R6n/1pkp4/2p3r1/P1P3r1/8/6p1/Q5K1

#2

6 + 10

1679 American Chess Nuts 1868

SOLUTION

  • SOUND
  • Sets
    • 1...Rd5
      • 2.Bxd5#
      • 2.cxd5#
    • 1...Rg6
      • 2.Bd5#
    • 1...Rg7
      • 2.Bd5#
  • Keys
    • 1.Qg7!
      • threat
        • 2.Rc7#
        • 2.Qc7#
      • 1...Rxg7
        • 2.Bd5#
      • 1...b5
        • 2.Qc7#
      • 1...d5
        • 2.Qc7#
      • 1...Bb7
        • 2.Qxb7#
      • 1...Sa6
        • 2.Qd7#
      • 1...Sd7
        • 2.Qxd7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 1
  • Sets
    • R(d);N_GUARD::B(F)
  • Actual
    • Q(A);
    • Threat
      • DUALS(2)
    • Vars
      • R(d);N_GUARD,XQ(A)::B(F)
      • P(e);::QAR1(A)
      • P(g);::QAR1(A)
      • B(i);N_GUARD::QAB1(A),XB(i)
      • S(j);N_GUARD::QAB1(A)
      • S(j);N_GUARD::QAB1(A),XS(j)
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