MESON Chess Problem Database

Problem Display
PID: 157908 (1N4Bn/nR1N4/3k1B1p/r2p3r/1P6/3b4/p7/K2R4 w - - 0 1)

Ahues, Herbert Siegfried Oskar

L'Italia Scacchistica, 1957

1N4Bn/nR1N4/3k1B1p/r2p3r/1P6/3b4/p7/K2R4

#2

8 + 9

15148 Sadier Collection 2016

SOLUTION

  • SOUND
  • Sets
    • 1...Rc5
      • 2.bxc5#
  • Tries
    • 1.Se5?
      • threat
        • 2.Rd7#
      • 1...Bb5
        • 2.Rxd5#
      • 1...Bf5
        • 2.Sc4#
      • 1...Sf7!
    • 1.Rb6+?
      • 1...Sc6
        • 2.Rxc6#
      • 1...Kc7!
  • Keys
    • 1.Sc5!
      • threat
        • 2.Rd7#
      • 1...Bb5
        • 2.Se4#
      • 1...Bf5
        • 2.Rxd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • R(c);OGATE::P(C),XR(c)
  • Tries
    • Try
      • S(F);
      • Threat
        • R1(E)
      • Vars
        • B(b);OGATE,P_SPINP(d)::R1(B),XP(d)
        • B(b);N_GUARD,P_SPINP(d)::S(F)
      • Refutation
        • S(i);
    • Try
      • R(E);CHECK
      • Vars
        • S(h);N_GUARD,P_SPINS(h)::R1(E),XS(h)
      • Refutation
        • K(f);S_FLIGHT
  • Actual
    • S(F);
    • Threat
      • R1(E)
    • Vars
      • B(b);N_GUARD,P_SPINP(d)::S(F)
      • B(b);OGATE,P_SPINP(d)::R1(B),XP(d)
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