MESON Chess Problem Database

Problem Display
PID: 17877 (3b4/1N2knQ1/2P2N2/p4p2/rp2p2K/rP6/P5B1/4R2n w - - 0 1)

Sanderse, Jacobus Theodorus

Probleemblad, 1951

3b4/1N2knQ1/2P2N2/p4p2/rp2p2K/rP6/P5B1/4R2n

#2

9 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...e3
      • 2.Rxe3#
    • 1...f4
      • 2.Rxe4#
  • Keys
    • 1.Sxe4!
      • threat
        • 2.Sd2#
        • 2.Sf2#
        • 2.Sc3#
        • 2.Sg3#
        • 2.Sec5#
        • 2.Sg5#
        • 2.Sed6#
        • 2.Sf6#
      • 1...Ke6+
        • 2.Sg5#
      • 1...Ke8+
        • 2.Sf6#
      • 1...Rxa2
        • 2.Sd2#
      • 1...Rxb3
        • 2.Sc3#
      • 1...fxe4
        • 2.Rxe4#
      • 1...Bb6
        • 2.Sec5#
      • 1...Bc7
        • 2.Sed6#
      • 1...Sf2
        • 2.Sxf2#
      • 1...Sg3
        • 2.Sxg3#

This is a version

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 9
    • REMOVED MATES = 2
  • Sets
    • P(e);OGATEB::R(A),XP(e)
    • P(g);N_GUARD::R(A),XP(e)
  • Actual
    • S(G);XP(e)
    • Threat
      • DUALS(8)
    • Vars
      • K(h);CHECK,N_SPINS(i),P-FLIGHT::R(A)+S(G),DCHECK
      • R(b);XP(B)::R(A)+S(G)
      • R(b);XP(D)::R(A)+S(G)
      • P(g);OGATE,P_SPINP(g),XS(G)::R(A),XP(g)
      • B(j);::R(A)+S(G)
      • S(a);::R(A)+S(G),XS(a)
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