MESON Chess Problem Database

Problem Display
PID: 82414 (5r2/5r2/4R1n1/1n5Q/R2PP3/2p1kNPp/2P2p2/1N3K2 w - - 0 1)

Ahues, Herbert Siegfried Oskar

Best Problems, 2004

5r2/5r2/4R1n1/1n5Q/R2PP3/2p1kNPp/2P2p2/1N3K2

#2

10 + 8

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Sfd2?
      • threat
        • 2.Qe2#
      • 1...Sxd4
        • 2.Sc4#
      • 1...Sf4
        • 2.Qf3#
      • 1...Rf3!
    • 1.Sh2?
      • threat
        • 2.Qe2#
      • 1...Rf3
        • 2.Sg4#
      • 1...Sf4
        • 2.Qf3#
      • 1...Sxd4!
  • Keys
    • 1.Se5!
      • threat
        • 2.Qe2#
      • 1...Kxe4
        • 2.Sxg6#
      • 1...Sxd4
        • 2.Sc4#
      • 1...Rf3
        • 2.Sg4#
      • 1...Sf4
        • 2.Qf3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(D);
      • Threat
        • QAR1(I)
      • Vars
        • S(e);SBLOCK,XP(G)::S(D)
        • S(f);S_CUTR(g)::QAR1(I)
      • Refutation
        • R(g);
    • Try
      • S(D);
      • Threat
        • QAR1(I)
      • Vars
        • R(g);SBLOCK::S(D)
        • S(f);S_CUTR(g)::QAR1(I)
      • Refutation
        • S(e);XP(G)
  • Actual
    • S(D);
    • Threat
      • QAR1(I)
    • Vars
      • K(c);P-FLIGHT,XP(H)::R(J)+S(D),XS(f)
      • S(e);SBLOCK,XP(G)::S(D)
      • R(g);SBLOCK::S(D)
      • S(f);S_CUTR(g)::QAR1(I)
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