MESON Chess Problem Database

Problem Display
PID: 52417 (5q2/8/1b1n4/B2ppb2/1PkP3R/1nN5/Q1R1P2K/5B2 w - - 0 1)

Buchwald, Julius

1st Prize, American Chess Bulletin, 1945

5q2/8/1b1n4/B2ppb2/1PkP3R/1nN5/Q1R1P2K/5B2

#2

10 + 8

5064 100 Years of the American Two-move Chess Problem 1962
5759 Selected Compositions of Julius Buchwald 2005

SOLUTION

  • SOUND
  • Sets
    • 1...Bd3
      • 2.exd3#
    • 1...Bxd4
      • 2.e4#
    • 1...Se4
      • 2.e3#
    • 1...e4
      • 2.e3#
  • Keys
    • 1.Qa4!
      • threat
        • 2.b5#
      • 1...Bxd4
        • 2.e4#
      • 1...Bxa5
        • 2.bxa5#
      • 1...Sxd4
        • 2.Qa2#
      • 1...exd4
        • 2.Se4#
      • 1...Se4
        • 2.e3#
      • 1...Bc5
        • 2.bxc5#
      • 1...Sc5
        • 2.bxc5#
      • 1...Sb5
        • 2.Qxb5#
      • 1...Sb7
        • 2.Qb5#
      • 1...Sf7
        • 2.Qb5#
      • 1...Sc8
        • 2.Qb5#
      • 1...Se8
        • 2.Qb5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 10
    • REMOVED MATES = 2
  • Sets
    • B(e);OGATE::P(D),XB(e)
    • B(f);P_SPINB(f),SBLOCK,XP(H)::B(A)+P(D)
    • S(g);S_CUTB(e)::B(A)+P(D)
    • P(d);S_CUTB(e)::B(A)+P(D)
  • Actual
    • Q(B);N_PINS(a)
    • Threat
      • QAR(B)+P(G)
    • Vars
      • B(f);P_SPINB(f),SBLOCK,XP(H)::B(A)+P(D)
      • B(f);OGATE,XB(J)::QAR(B)+P(G),XB(f)
      • S(a);OGATEB,P_SPINS(a),XP(H)::QAB(B)
      • P(d);P_SPINP(d),SBLOCK,XP(H)::R(C)+S(F)
      • S(g);S_CUTB(e)::B(A)+P(D)
      • B(f);OGATE::QAR(B)+P(G),XB(f)
      • S(a);OGATE::QAR(B)+P(G),XS(a)
      • S(g);N_GUARD::QAB1(B),XS(g)
      • S(g);N_GUARD::QAB1(B)
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