MESON Chess Problem Database

Problem Display
PID: 160873 (2b3B1/K3Qn1r/p2PPp2/3k1N1R/4N2b/3PP3/8/B7 w - - 0 1)

Albrecht, Hermann

Nieuw Nederland, 1947

(First published on Fri Oct 10 1947)

2b3B1/K3Qn1r/p2PPp2/3k1N1R/4N2b/3PP3/8/B7

#2

11 + 7

15601 Albrecht-Leiss-Degener Collection 2017

SOLUTION

  • SOUND
  • Sets
    • 1...Kc6
      • 2.Sd4#
    • 1...Bxe6
      • 2.Qb7#
  • Tries
    • 1.Sc3+?
      • 1...Ke5
        • 2.d4#
      • 1...Kc6
        • 2.Sd4#
        • 2.Qc7#
      • 1...Kc5!
    • 1.Qb7+?
      • 1...Kxe6
        • 2.Sc5#
        • 2.Sd4#
      • 1...Bxb7!
    • 1.Qxf7?
      • threat
        • 2.Se7#
      • 1...Kc6
        • 2.Sd4#
        • 2.Se7#
      • 1...Rxf7+!
  • Keys
    • 1.Qc7!
      • threat
        • 2.Qc4#
      • 1...Kxe6
        • 2.Sd4#
      • 1...Sxd6
        • 2.Se7#
      • 1...Se5
        • 2.Sc3#
      • 1...Sg5
        • 2.Sxf6#
      • 1...Sh6
        • 2.Se7#
      • 1...Sd8
        • 2.Se7#
      • 1...Sh8
        • 2.Se7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 2
  • Sets
    • K(b);S_FLIGHT::S(E)
    • B(g);N_GUARD,SBLOCK,XP(H)::QAB(J)
  • Tries
    • Try
      • S(D);CHECK
      • Vars
        • K(b);P-FLIGHT::P(B)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • Q(J);CHECK
      • Refutation
        • B(g);XQ(J)
    • Try
      • Q(J);P_SPINQ(J),XS(e)
      • Threat
        • R(F)+S(E),DCHECK
      • Refutation
        • R(f);CHECK,XQ(J)
  • Actual
    • Q(J);
    • Threat
      • QAB1(J)
    • Vars
      • K(b);P_SPINS(e),S_FLIGHT,XP(H)::S(E)
      • S(e);P_PINQ(J),XP(G)::R(F)+S(E),DCHECK
      • S(e);P_PINQ(J),SBLOCK::S(D)
      • S(e);P_PINQ(J),S_CUTB(a)::S(D),XP(d)
      • S(e);P_PINQ(J)::R(F)+S(E),DCHECK
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