MESON Chess Problem Database

Problem Display
PID: 161046 (4B3/8/n2p4/P1kp1bR1/1rN2Q1K/Bp4p1/8/8 w - - 0 1)

Albrecht, Hermann

Pirmasenser Zeitung, 1938

(First published on Sat Jun 11 1938)

4B3/8/n2p4/P1kp1bR1/1rN2Q1K/Bp4p1/8/8

#2

7 + 8

15601 Albrecht-Leiss-Degener Collection 2017

SOLUTION

  • SOUND
  • Tries
    • 1.Sb2?
      • threat
        • 2.Sa4#
      • 1...Be4
        • 2.Qe3#
      • 1...Bd7
        • 2.Qc4#
      • 1...d4!
    • 1.Sd2?
      • threat
        • 2.Sxb3#
      • 1...Be4
        • 2.Qe3#
      • 1...Bd7
        • 2.Qc4#
      • 1...Bc2
        • 2.Qc4#
      • 1...b2
        • 2.Sb3#
      • 1...d4!
  • Keys
    • 1.Sb6!
      • threat
        • 2.Sa4#
      • 1...Be4
        • 2.Qe3#
      • 1...Bd7
        • 2.Qc4#
      • 1...d4
        • 2.Qc1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(B);P_SPINQ(C)
      • Threat
        • S(B)
      • Vars
        • B(f);N_PINQ(C),P_SPINP(e)::QAB(C)
        • B(f);P_SPINP(e)::QAR1(C)
      • Refutation
        • P(e);N_PINQ(C),P_SPINB(f)
    • Try
      • S(B);P_SPINQ(C)
      • Threat
        • S(B),XP(a)
      • Vars
        • B(f);N_PINQ(C),P_SPINP(e)::QAB(C)
        • B(f);P_SPINP(e)::QAR1(C)
        • P(a);::S(B)
      • Refutation
        • P(e);N_PINQ(C),P_SPINB(f)
  • Actual
    • S(B);P_SPINQ(C)
    • Threat
      • S(B)
    • Vars
      • B(f);N_PINQ(C),P_SPINP(e)::QAB(C)
      • B(f);P_SPINP(e)::QAR1(C)
      • P(e);N_PINQ(C),P_SPINB(f),SBLOCK::QAR(C)
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