MESON Chess Problem Database

Problem Display
PID: 232611 (rk6/pB1pp3/8/B1N1q3/2p1r3/K3p3/7Q/8 w - - 0 1)

Heyl, Peter

Freie Presse, 2013

rk6/pB1pp3/8/B1N1q3/2p1r3/K3p3/7Q/8

#2

5 + 9

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Qd6
      • 2.Qh8#
    • 1...Qc7
      • 2.Bxc7#
      • 2.Qxc7#
  • Tries
    • 1.Qxe5+?
      • 1...d6
        • 2.Qh8#
      • 1...Rxe5!
  • Keys
    • 1.Ba6!
      • threat
        • 2.Sxd7#
      • 1...Qd6
        • 2.Qh8#
      • 1...Rd4
        • 2.Qb2#
      • 1...d5
        • 2.Sd7#
      • 1...d6
        • 2.Sd7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • Q(d);N_GUARD,P_PINS(D)::QAR(A)
  • Tries
    • Try
      • Q(A);CHECK,XQ(d)
      • Vars
        • P(f);P_SPINP(f)::QAR(A)
      • Refutation
        • R(c);XQ(A)
  • Actual
    • B(E);
    • Threat
      • S(D),XP(f)
    • Vars
      • Q(d);N_GUARD,P_PINS(D)::QAR(A)
      • R(c);::QAR(A)
      • P(f);::S(D)
      • P(f);N_SPINQ(d)::S(D)
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