MESON Chess Problem Database

Problem Display
PID: 186712 (3r4/4Q3/7q/r2B2P1/3RN2n/3RNk2/7P/b1BK4 w - - 0 1)

Ahues, Herbert Siegfried Oskar

Chess, 1960

3r4/4Q3/7q/r2B2P1/3RN2n/3RNk2/7P/b1BK4

#2

10 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Kf4
      • 2.Sc3#
  • Tries
    • 1.Qf6+?
      • 1...Sf5
        • 2.Qxf5#
      • 1...Qxf6!
    • 1.Qf7+?
      • 1...Sf5
        • 2.Qxf5#
      • 1...Qf6!
  • Keys
    • 1.Rd2!
      • threat
        • 2.Rf2#
      • 1...Kxe3
        • 2.Sf6#
        • 2.R2d3#
      • 1...Kf4
        • 2.Sc3#
      • 1...Ra2
        • 2.Sd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(b);P-FLIGHT::R(F)+S(G)
  • Tries
    • Try
      • Q(J);CHECK
      • Vars
        • S(c);N_GUARD,P_SPINS(c)::QAR2(J),XS(c)
      • Refutation
        • Q(e);XQ(J)
    • Try
      • Q(J);CHECK
      • Vars
        • S(c);N_GUARD,P_SPINS(c)::QAR2(J),XS(c)
      • Refutation
        • Q(e);P_SPINQ(e)
  • Actual
    • R(D);
    • Threat
      • R1(D)
    • Vars
      • K(b);P-FLIGHT::R(F)+S(G)
      • R(d);N_GUARD::B(H)+S(G)
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