MESON Chess Problem Database

Problem Display
PID: 139154 (8/3p2B1/K2n1R2/3pp2r/1PPkN3/NR6/3r1PQb/8 w - - 0 1)

Slagmolen, Cornelis

Probleemblad, 1974

8/3p2B1/K2n1R2/3pp2r/1PPkN3/NR6/3r1PQb/8

#2

10 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Sxc4
      • 2.Sb5#
    • 1...dxc4
      • 2.Rxd6#
    • 1...dxe4
      • 2.Rxd6#
  • Tries
    • 1.Sc2+?
      • 1...Kxc4
        • 2.Sxd2#
        • 2.Rc3#
      • 1...Rxc2!
    • 1.Sb5+?
      • 1...Kxc4
        • 2.Sxd2#
      • 1...Sxb5!
    • 1.Sxd2?
      • threat
        • 2.Sc2#
        • 2.Qxd5#
      • 1...Sxc4
        • 2.Sc2#
        • 2.Sb5#
      • 1...dxc4
        • 2.Sc2#
        • 2.Rxd6#
      • 1...Se4
        • 2.Sf3#
        • 2.Sc2#
        • 2.Sb5#
      • 1...e4!
    • 1.Sg3?
      • threat
        • 2.Qxd5#
      • 1...Sxc4
        • 2.Sb5#
        • 2.Rf4#
      • 1...dxc4
        • 2.Rxd6#
      • 1...e4
        • 2.Rf5#
      • 1...Se4!
    • 1.Sxd6?
      • threat
        • 2.Sab5#
        • 2.Sdb5#
        • 2.Qxd5#
      • 1...dxc4
        • 2.Sab5#
        • 2.Sdb5#
        • 2.Qe4#
      • 1...Ra2
        • 2.Sb5#
        • 2.Qxd5#
      • 1...e4!
  • Keys
    • 1.Sg5!
      • threat
        • 2.Qxd5#
      • 1...Sxc4
        • 2.Sb5#
      • 1...dxc4
        • 2.Rxd6#
      • 1...e4
        • 2.Rf4#
      • 1...Se4
        • 2.Sf3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • S(g);N_GUARD,SBLOCK,XP(F)::S(C)
    • P(d);OGATEB,XP(F)::R(I),XS(g)
    • P(d);OGATEB,XS(G)::R(I),XS(g)
  • Tries
    • Try
      • S(C);CHECK
      • Refutation
        • R(a);XS(C)
    • Try
      • S(C);CHECK
      • Vars
        • K(c);P-FLIGHT,XP(F)::S(G),XR(a)
      • Refutation
        • S(g);XS(C)
    • Try
      • S(G);XR(a)
      • Threat
        • DUALS(2)
      • Refutation
        • P(e);
    • Try
      • S(G);
      • Threat
        • QAR1(B),XP(d)
      • Vars
        • P(d);OGATEB,XP(F)::R(I),XS(g)
        • P(e);OGATEB::B(J)+R(I)
      • Refutation
        • S(g);
    • Try
      • S(G);XS(g)
      • Threat
        • DUALS(3)
      • Refutation
        • P(e);
  • Actual
    • S(G);
    • Threat
      • QAR1(B),XP(d)
    • Vars
      • S(g);N_GUARD,SBLOCK,XP(F)::S(C)
      • P(d);OGATEB,XP(F)::R(I),XS(g)
      • P(e);S_CUTB(b),S_CUTS(g)::B(J)+R(I)
      • S(g);SBLOCK::S(G)
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