MESON Chess Problem Database

Problem Display
PID: 82272 (7r/4B1nB/2QN3P/3rpp1p/Rn2p1kP/4P3/3p3K/5R2 w - - 0 1)

Ahues, Herbert Siegfried Oskar

Sinfonie Scacchistiche, 1984

7r/4B1nB/2QN3P/3rpp1p/Rn2p1kP/4P3/3p3K/5R2

#2

10 + 10

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Se6
      • 2.Bxf5#
    • 1...Se8
      • 2.Bxf5#
  • Tries
    • 1.Sc4?
      • threat
        • 2.Qg6#
      • 1...Rd6
        • 2.Sxe5#
      • 1...Se6
        • 2.Bxf5#
      • 1...Sxc6!
    • 1.Sxf5?
      • threat
        • 2.Qg6#
      • 1...Sxc6
        • 2.Rxe4#
      • 1...Rd6
        • 2.Qxe4#
      • 1...Se6!
    • 1.Sf7?
      • threat
        • 2.Qg6#
      • 1...Rd6
        • 2.Sxe5#
      • 1...Se6
        • 2.Bxf5#
      • 1...Sxc6!
  • Keys
    • 1.Sxe4!
      • threat
        • 2.Qg6#
      • 1...Sxc6
        • 2.Sf6#
      • 1...Rd6
        • 2.Sf2#
      • 1...Se6
        • 2.Bxf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • S(i);N_GUARD::B(J),XP(g)
  • Tries
    • Try
      • S(G);
      • Threat
        • QAR2(F)
      • Vars
        • R(e);N_GUARD::S(G),XP(f)
        • S(i);N_GUARD::B(J),XP(g)
      • Refutation
        • S(b);XQ(F)
    • Try
      • S(G);XP(g)
      • Threat
        • QAR2(F)
      • Vars
        • S(b);OGATE,P_SPINP(c),XQ(F)::R(D),XP(c)
        • R(e);OGATE::QAR2(F),XP(c)
      • Refutation
        • S(i);
    • Try
      • S(G);
      • Threat
        • QAR2(F)
      • Vars
        • R(e);N_GUARD::S(G),XP(f)
        • S(i);N_GUARD::B(J),XP(g)
      • Refutation
        • S(b);P_SPINP(c),XQ(F)
  • Actual
    • S(G);XP(c)
    • Threat
      • QAR2(F)
    • Vars
      • S(b);XQ(F)::R(D)+S(G),DCHECK
      • R(e);::S(G)
      • S(i);N_GUARD::B(J),XP(g)
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