MESON Chess Problem Database

Problem Display
PID: 266386 (1b5Q/pr2P1P1/P2k2K1/1p6/1P1N1P2/8/1p6/1B6 w - - 0 1)

Hirst, George

Sunday Referee, 1937

(First published on Sun Jul 4 1937)

1b5Q/pr2P1P1/P2k2K1/1p6/1P1N1P2/8/1p6/1B6

#2

9 + 6

15239 Valois Notebooks 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Kc7
      • 2.Qd8#
    • 1...Kd7
      • 2.Qd8#
    • 1...Rb6
      • 2.Qd8#
  • Tries
    • 1.g8Q?
      • 1...Kc7
        • 2.Qd8#
      • 1...Kd7
        • 2.Qd8#
      • 1...Kxe7
        • 2.Qe6#
        • 2.Qd8#
      • 1...Rb6
        • 2.Qd8#
      • 1...Rc7
        • 2.Qe6#
      • 1...Rd7
        • 2.Qe5#
      • 1...Bc7
        • 2.Qe6#
      • 1...Rxe7!
  • Keys
    • 1.Qc8!
      • 1...Kd5
        • 2.Qc5#
      • 1...Kxe7
        • 2.Sf5#
      • 1...Rxe7
        • 2.Qc6#
      • 1...Rb6
        • 2.Qd8#
      • 1...Rc7
        • 2.Qe6#
      • 1...Rd7
        • 2.Qc5#
      • 1...Bc7
        • 2.Qe6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 2
  • Sets
    • K(c);S_CUTR(e),S_FLIGHT::QAB1(I)
    • K(c);P-FLIGHT,S_CUTR(e)::QAR1(I)
    • R(e);N_GUARD::QAR2(I)
  • Tries
    • Try
      • P(H);
      • Vars
        • K(c);S_CUTR(e),S_FLIGHT::QAB1(H)
        • K(c);P-FLIGHT,S_CUTR(e)::QAR1(H)
        • R(e);N_GUARD::QAR2(H)
        • R(e);SBLOCK::QAR1(H)
        • R(e);SBLOCK::QAB1(I)
        • B(f);SBLOCK::QAR1(H)
      • Refutation
        • R(e);XP(G)
  • Actual
    • Q(I);
    • Vars
      • K(c);N_GUARD,P-FLIGHT::QAR1(I)
      • K(c);N_GUARD,S_FLIGHT,XP(G)::S(C)
      • R(e);SBLOCK,XP(G)::QAR1(I)
      • R(e);N_GUARD::QAR2(I)
      • R(e);SBLOCK::QAR1(I)
      • R(e);SBLOCK::QAB1(I)
      • B(f);SBLOCK::QAR1(I)
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