MESON Chess Problem Database

Problem Display
PID: 163720 (1Bb3r1/5Q2/2Bp3r/1N1NkP2/n1R2pP1/b1p5/K3p3/4n3 w - - 0 1)

Ahues, Herbert Siegfried Oskar

Comm., Landeszeitung fur die Luneburger Heide, 1996-1997

(First published on Sat Aug 30 1997)

1Bb3r1/5Q2/2Bp3r/1N1NkP2/n1R2pP1/b1p5/K3p3/4n3

#2

9 + 11

15601 Albrecht-Leiss-Degener Collection 2017

SOLUTION

  • SOUND
  • Sets
    • 1...Rh1
      • 2.Qf6#
    • 1...Rh2
      • 2.Qf6#
    • 1...Rh3
      • 2.Qf6#
    • 1...Rh4
      • 2.Qf6#
    • 1...Rh5
      • 2.Qf6#
    • 1...Rf6
      • 2.Qxf6#
    • 1...Rh7
      • 2.Qf6#
    • 1...Rhh8
      • 2.Qf6#
    • 1...Bxf5
      • 2.Qxf5#
  • Tries
    • 1.Sf6?
      • threat
        • 2.Re4#
      • 1...Rxg4
        • 2.Sxg4#
      • 1...Sc5
        • 2.Bxd6#
      • 1...Be6
        • 2.Qxe6#
      • 1...Bxf5!
    • 1.Qg7+?
      • 1...Rf6
        • 2.Qxf6#
      • 1...Rxg7!
  • Keys
    • 1.Sb4!
      • threat
        • 2.Re4#
      • 1...Bxf5
        • 2.Qxf5#
      • 1...Sc5
        • 2.Rxc5#
      • 1...Be6
        • 2.Bxd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 8
  • Sets
    • R(i);N_GUARD::QAB1(H)
    • R(i);N_GUARD::QAB1(H),XR(i)
    • B(j);OGATE,XP(F)::QAR1(H),XB(j)
  • Tries
    • Try
      • S(E);
      • Threat
        • R1(B)
      • Vars
        • R(k);XP(C)::S(E),XR(k)
        • S(e);S_CUTB(c)::B(I),XP(h)
        • B(j);N_GUARD,P_PINR(B)::QAR1(H),XB(j)
      • Refutation
        • B(j);XP(F)
    • Try
      • Q(H);CHECK
      • Vars
        • R(i);N_GUARD,P_SPINR(i)::QAB1(H),XR(i)
      • Refutation
        • R(k);XQ(H)
  • Actual
    • S(E);
    • Threat
      • R1(B)
    • Vars
      • B(j);OGATE,XP(F)::QAR1(H),XB(j)
      • S(e);N_GUARD::R(B),XS(e)
      • B(j);P_PINR(B),S_CUTR(i)::B(I),XP(h)
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