MESON Chess Problem Database

Problem Display
PID: 20999 (1r3bB1/1p1R1K2/3P2p1/N2k2Pb/N2pnP2/3p4/4pPQ1/8 w - - 0 1)

Feenstra Kuiper, Pieter

Good Companions (December), 1915

1r3bB1/1p1R1K2/3P2p1/N2k2Pb/N2pnP2/3p4/4pPQ1/8

#2

10 + 10

3132 The Good Companion Two-Mover 1922

SOLUTION

  • SOUND
  • Sets
    • 1...Re8
      • 2.Kxe8#
    • 1...Bf3
      • 2.Kxg6#
    • 1...Be7
      • 2.dxe7#
  • Keys
    • 1.f3!
      • threat
        • 2.fxe4#
      • 1...Sxg5+
        • 2.Qxg5#
      • 1...Sxd6+
        • 2.Kf6#
      • 1...Bxf3
        • 2.Kxg6#
      • 1...e1Q
        • 2.Qa2#
      • 1...e1R
        • 2.Qa2#
      • 1...Re8
        • 2.Kxe8#
      • 1...Sd2
        • 2.Kf6#
      • 1...Sf2
        • 2.Kf6#
      • 1...Sc3
        • 2.Kf6#
      • 1...Sg3
        • 2.Kf6#
      • 1...Sc5
        • 2.Sb6#
      • 1...Sf6
        • 2.Kxf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 10
    • REMOVED MATES = 1
  • Sets
    • R(i);::B(J)+K(I),XR(i)
    • B(f);N_SPINS(d)::B(J)+K(I),XP(g)
    • B(j);OGATE::R(H)+P(G),XB(j)
  • Actual
    • P(A);N_PINS(d)
    • Threat
      • P(A),XS(d)
    • Vars
      • S(d);CHECK,OGATE,XP(F)::QAR(B),XS(d)
      • S(d);CHECK,P_SPINS(d),XP(G)::B(J)+K(I)
      • B(f);XP(A)::B(J)+K(I),XP(g)
      • P(a);OGATE::QAB(B)
      • R(i);::B(J)+K(I),XR(i)
      • S(d);::B(J)+K(I)
      • S(d);SBLOCK::S(C)
      • S(d);::B(J)+K(I),XS(d)
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Developed and maintained by Brian Stephenson.
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