MESON Chess Problem Database

Problem Display
PID: 8030 (r3k3/3pp1K1/4P3/2Q5/8/8/8/8 w - - 0 1)

Rice, John Michael

Chess Problems for Solving, 1995

r3k3/3pp1K1/4P3/2Q5/8/8/8/8

#2

3 + 4

SOLUTION

  • SOUND
  • Sets
    • 1...Ra1
      • 2.Qc8#
    • 1...Ra2
      • 2.Qc8#
    • 1...Ra3
      • 2.Qc8#
    • 1...Ra4
      • 2.Qc8#
    • 1...Ra5
      • 2.Qc8#
    • 1...Ra6
      • 2.Qc8#
    • 1...Ra7
      • 2.Qc8#
    • 1...Rc8
      • 2.Qxc8#
    • 1...Rd8
      • 2.Qh5#
  • Keys
    • 1.Qb5!
      • threat
        • 2.Qxd7#
      • 1...Kd8
        • 2.Qxd7#
      • 1...Ra7
        • 2.Qb8#
      • 1...Rd8
        • 2.Qh5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 7
  • Sets
    • R(c);N_GUARD::QAR2(A)
    • R(c);N_GUARD::QAR2(A),XR(c)
    • R(c);SBLOCK::QAB(A)
  • Actual
    • Q(A);P_PINP(a)
    • Threat
      • QAB1(A),XP(a)
    • Vars
      • K(d);N_SPINP(a),P-FLIGHT::QAR1(A),XP(a)
      • R(c);N_GUARD::QAR(A)
      • R(c);SBLOCK::QAB(A)
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