MESON Chess Problem Database

Problem Display
PID: 68141 (bnBq1r2/2P4p/3p1p2/4P3/2P1kN1N/8/8/K1BQ2n1 w - - 0 1)

Ellerman, Arnoldo

Chess, 1949

bnBq1r2/2P4p/3p1p2/4P3/2P1kN1N/8/8/K1BQ2n1

#2

9 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Bd5
      • 2.Qxd5#
    • 1...Sc6
      • 2.Qd5#
    • 1...dxe5
      • 2.Bf5#
    • 1...fxe5
      • 2.Qd3#
  • Keys
    • 1.Se6!
      • threat
        • 2.Qd4#
      • 1...Kxe5
        • 2.Qd4#
      • 1...dxe5
        • 2.Sc5#
      • 1...fxe5
        • 2.Qc2#
      • 1...Se2
        • 2.Qxe2#
      • 1...Sf3
        • 2.Qe2#
      • 1...Sc6
        • 2.Qd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • B(f);N_GUARD::QAB1(C),XB(f)
    • S(g);S_CUTB(f)::QAB1(C)
    • P(c);SBLOCK,XP(G)::B(I)
    • P(d);SBLOCK,XP(G)::QAB1(C)
  • Actual
    • S(E);
    • Threat
      • QAR1(C)
    • Vars
      • K(b);P-FLIGHT,XP(G)::QAB1(C)
      • P(c);N_GUARD,SBLOCK,XP(G)::S(E)
      • P(d);SBLOCK,XP(G)::QAB(C)
      • S(a);N_GUARD::QAR2(C),XS(a)
      • S(a);N_GUARD::QAR2(C)
      • S(g);S_CUTB(f)::QAB1(C)
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