MESON Chess Problem Database

Problem Display
PID: 238686 (1B2K1n1/2R4N/5pP1/4n3/3p1kPQ/3rpP1p/4P3/5R2 w - - 0 1)

Ahues, Herbert Siegfried Oskar

idee & form, 2010

1B2K1n1/2R4N/5pP1/4n3/3p1kPQ/3rpP1p/4P3/5R2

#2

10 + 8

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Sxf3
      • 2.Re7#
    • 1...Sc4
      • 2.Rxc4#
    • 1...Sxg4
      • 2.Rc5#
    • 1...Sc6
      • 2.Rxc6#
    • 1...Sd7
      • 2.Rxd7#
    • 1...Sf7
      • 2.Rxf7#
    • 1...h2
      • 2.Qxh2#
  • Tries
    • 1.Rg1?
      • threat
        • 2.Qg3#
      • 1...Sxg4
        • 2.Rc5#
      • 1...Sxf3!
    • 1.Qxh3?
      • threat
        • 2.Qh2#
      • 1...Sxf3
        • 2.Re7#
      • 1...Sxg4!
    • 1.g5+?
      • 1...Sg4
        • 2.Rc5#
      • 1...Kf5!
  • Keys
    • 1.Sf8!
      • threat
        • 2.Se6#
      • 1...Sxf3
        • 2.Re7#
      • 1...Sxg4
        • 2.Rc5#
      • 1...Sxg6
        • 2.Sxg6#
      • 1...Sc4
        • 2.Rxc4#
      • 1...Sc6
        • 2.Rxc6#
      • 1...Sd7
        • 2.Rxd7#
      • 1...Sf7
        • 2.Rxf7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • S(f);OGATEB,P_SPINS(f),XP(C)::B(I)+R(G)
    • S(f);OGATEB::B(I)+R(G),XS(f)
    • S(f);OGATEB,P_SPINS(f),XP(D)::B(I)+R(G)
    • P(c);OGATE::QAB(E),XP(c)
  • Tries
    • Try
      • R(A);
      • Threat
        • QAB1(E)
      • Vars
        • S(f);OGATEB,P_SPINS(f),XP(D)::B(I)+R(G)
      • Refutation
        • S(f);XP(C)
    • Try
      • Q(E);XP(c)
      • Threat
        • QAB(E)
      • Vars
        • S(f);OGATEB,P_SPINS(f),XP(C)::B(I)+R(G)
      • Refutation
        • S(f);XP(D)
    • Try
      • P(D);CHECK
      • Vars
        • S(f);P_SPINS(f)::B(I)+R(G)
      • Refutation
        • K(e);P-FLIGHT
  • Actual
    • S(H);
    • Threat
      • S(H)
    • Vars
      • S(f);OGATEB,P_SPINS(f),XP(C)::B(I)+R(G)
      • S(f);OGATEB,P_SPINS(f),XP(D)::B(I)+R(G)
      • S(f);XP(F)::S(H),XS(f)
      • S(f);OGATEB::B(I)+R(G),XS(f)
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