MESON Chess Problem Database

Problem Display
PID: 63510 (3R4/5Kp1/3Npn2/4k1rn/1R4p1/3pN3/p3P3/bbBQ3B w - - 0 1)

Ahues, Herbert Siegfried Oskar

3rd Prize, Probleemblad, 1974

3R4/5Kp1/3Npn2/4k1rn/1R4p1/3pN3/p3P3/bbBQ3B

#2

9 + 11

3771 FIDE Album (1974-1976) 1980

SOLUTION

  • SOUND
  • Sets
    • 1...Bb2
      • 2.Bxb2#
    • 1...Bd4
      • 2.Sec4#
    • 1...Sf4
      • 2.Sdc4#
    • 1...Se4
      • 2.Rxe4#
    • 1...Sd5
      • 2.Re4#
    • 1...Sh7
      • 2.Re4#
    • 1...Se8
      • 2.Re4#
    • 1...Sg8
      • 2.Re4#
    • 1...dxe2
      • 2.Sec4#
  • Tries
    • 1.Qf1?
      • threat
        • 2.Sdc4#
      • 1...Sd5
        • 2.Re4#
      • 1...Sd7!
    • 1.Qg1?
      • threat
        • 2.Sec4#
      • 1...Se4
        • 2.Rxe4#
      • 1...d2!
  • Keys
    • 1.Qb3!
      • threat
        • 2.Qxe6#
      • 1...Bd4
        • 2.Sec4#
      • 1...Se4
        • 2.Rxe4#
      • 1...Sf4
        • 2.Sdc4#
      • 1...Sd5
        • 2.Re4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 5
  • Sets
    • B(a);N_GUARD::B(A),XB(a)
    • B(a);SBLOCK::S(E)
    • S(h);SBLOCK::S(G)
    • S(j);N_GUARD::R1(F),XS(j)
    • S(j);N_GUARD::R1(F)
    • P(d);XP(D)::S(E)
  • Tries
    • Try
      • Q(B);
      • Threat
        • S(G)
      • Vars
        • S(j);N_GUARD::R1(F)
      • Refutation
        • S(j);
    • Try
      • Q(B);
      • Threat
        • S(E)
      • Vars
        • S(j);N_GUARD::R1(F),XS(j)
      • Refutation
        • P(d);
  • Actual
    • Q(B);
    • Threat
      • QAR1(B),XP(i)
    • Vars
      • B(a);SBLOCK::S(E)
      • S(j);N_GUARD::R1(F),XS(j)
      • S(h);SBLOCK::S(G)
      • S(j);N_GUARD::R1(F)
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