MESON Chess Problem Database

Problem Display
PID: 74091 (K4R2/7p/3P2p1/1Q1N3B/R2Pk3/2p3qn/7b/3n1N1b w - - 0 1)

Buchwald, Julius

Magasinet, 1948

K4R2/7p/3P2p1/1Q1N3B/R2Pk3/2p3qn/7b/3n1N1b

#2

9 + 9

5759 Selected Compositions of Julius Buchwald 2005

SOLUTION

  • SOUND
  • Sets
    • 1...Bg1
      • 2.Sxg3#
    • 1...Se3
      • 2.Sxc3#
    • 1...Sf4
      • 2.Sf6#
    • 1...c2
      • 2.Sd2#
  • Tries
    • 1.Rf4+?
      • 1...Sxf4
        • 2.Sf6#
      • 1...Qxf4!
  • Keys
    • 1.Sb4!
      • threat
        • 2.Qd5#
      • 1...Kxd4+
        • 2.Sc6#
      • 1...Qxd6
        • 2.Qd3#
      • 1...Qe5
        • 2.Qd3#
      • 1...Qg5
        • 2.Qd3#
      • 1...Se3
        • 2.Qd3#
      • 1...Sf4
        • 2.Qe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 4
    • REMOVED MATES = 2
  • Sets
    • B(c);N_GUARD::S(A),XQ(e)
    • S(a);N_GUARD,S_CUTQ(e)::S(E),XP(d)
    • S(f);SBLOCK::S(E)
    • P(d);N_GUARD::S(A)
  • Tries
    • Try
      • R(I);CHECK
      • Vars
        • S(f);SBLOCK,XR(I)::S(E)
      • Refutation
        • Q(e);XR(I)
  • Actual
    • S(E);
    • Threat
      • QAB1(D)
    • Vars
      • K(g);CHECK,P-FLIGHT,XP(C)::R(B)+S(E),DCHECK
      • Q(e);N_GUARD,XP(G)::QAB1(D)
      • Q(e);N_GUARD::QAB1(D)
      • S(a);S_CUTQ(e)::QAB1(D)
      • S(f);S_CUTQ(e)::QAR1(D)
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