MESON Chess Problem Database

Problem Display
PID: 60758 (r5bB/1BP3R1/8/pQ1prp2/3kN3/3n4/4RP2/4nKN1 w - - 0 1)

Lindmark, CE

Good Companions (March), 1919

r5bB/1BP3R1/8/pQ1prp2/3kN3/3n4/4RP2/4nKN1

#2

10 + 9

3132 The Good Companion Two-Mover 1922

SOLUTION

  • SOUND
  • Sets
    • 1...Re6
      • 2.Qxd5#
    • 1...Sc2
      • 2.Sf3#
    • 1...Sg2
      • 2.Sf3#
    • 1...Sf3
      • 2.Sxf3#
  • Keys
    • 1.Rd2!
      • threat
        • 2.Qa4#
      • 1...Kxe4
        • 2.Qc4#
      • 1...Rxe4
        • 2.Rg4#
      • 1...dxe4
        • 2.Se2#
      • 1...fxe4
        • 2.Se2#
      • 1...Re6
        • 2.Qxd5#
      • 1...Re7
        • 2.Rxe7#
      • 1...Ree8
        • 2.Re7#
      • 1...Sc2
        • 2.Qxd3#
      • 1...a4
        • 2.Qb4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 7
    • REMOVED MATES = 2
  • Sets
    • R(f);N_GUARD,S_CUTB(i)::QAR1(F),XP(e)
    • S(a);N_GUARD::S(B)
    • S(a);N_GUARD::S(B),XS(a)
  • Actual
    • R(C);P_PINS(b)
    • Threat
      • QAR(F)
    • Vars
      • K(c);N_SPINS(b),P-FLIGHT,P_SPINP(e),XS(E)::QAR2(F)
      • R(f);OGATEB,XS(E)::B(J)+R(I)
      • P(e);XS(E)::S(B)
      • P(g);SBLOCK,XS(E)::S(B)
      • R(f);N_GUARD,S_CUTB(i)::QAR1(F),XP(e)
      • R(f);OGATEB::B(J)+R(I),XR(f)
      • R(f);OGATEB::B(J)+R(I)
      • S(a);N_GUARD::QAR1(F),XS(b)
      • P(d);N_GUARD::QAR2(F)
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