MESON Chess Problem Database

Problem Display
PID: 161125 (2NbQq2/2p5/K1P1Pp2/1nRNk3/2np1pP1/3P4/B7/2r1r3 w - - 0 1)

Ahues, Herbert Siegfried Oskar

The Problemist, 1977

2NbQq2/2p5/K1P1Pp2/1nRNk3/2np1pP1/3P4/B7/2r1r3

#2

10 + 11

15148 Sadier Collection 2017

SOLUTION

  • SOUND
  • Sets
    • 1...Qh6
      • 2.Sc3#
      • 2.Se3#
      • 2.Sb4#
      • 2.Sdb6#
      • 2.Sxc7#
    • 1...Qg7
      • 2.Sc3#
      • 2.Se3#
      • 2.Sb4#
      • 2.Sdb6#
      • 2.Sxc7#
    • 1...Qf7
      • 2.Sc3#
      • 2.Se3#
      • 2.Sb4#
      • 2.Sdb6#
      • 2.Sxc7#
    • 1...Qxe8
      • 2.Sxc7#
    • 1...Qg8
      • 2.Sc3#
      • 2.Se3#
      • 2.Sb4#
      • 2.Sdb6#
      • 2.Sxc7#
    • 1...Qh8
      • 2.Sc3#
      • 2.Se3#
      • 2.Sb4#
      • 2.Sdb6#
      • 2.Sxc7#
    • 1...Scd6
      • 2.Sc3#
    • 1...Sbd6
      • 2.Sc3#
      • 2.Se3#
      • 2.Sb4#
      • 2.Sdb6#
      • 2.Sxc7#
  • Tries
    • 1.Qh5+?
      • 1...Kxe6
        • 2.Sxf4#
      • 1...f5!
  • Keys
    • 1.Qg6!
      • threat
        • 2.Qf5#
      • 1...Kxe6
        • 2.Sxf4#
      • 1...Se3
        • 2.Qe4#
      • 1...Scd6
        • 2.Sc3#
      • 1...Sbd6
        • 2.Sxc7#
      • 1...f5
        • 2.Sde7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • Q(k);N_GUARD,XQ(J)::R(D)+S(E),XP(i)
    • S(c);S_CUTQ(k)::R(D)+S(E)
  • Tries
    • Try
      • Q(J);CHECK
      • Vars
        • K(g);P-FLIGHT,XP(H)::S(E),XP(e)
      • Refutation
        • P(h);P_SPINP(h)
  • Actual
    • Q(J);
    • Threat
      • QAR1(J)
    • Vars
      • K(g);P-FLIGHT,P_SPINP(h),XP(H)::S(E),XP(e)
      • S(c);S_CUTR(b)::QAR1(J)
      • S(c);S_CUTQ(k)::R(D)+S(E)
      • S(f);S_CUTQ(k)::R(D)+S(E),XP(i)
      • P(h);::R(D)+S(E)
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