MESON Chess Problem Database

Problem Display
PID: 71478 (8/4b3/1p1P1PKp/2P3Pp/3RN2k/2P3Rp/3PpP1P/1n5n w - - 0 1)

le Grand, Piet

9th Comm., Probleemblad, 1984

8/4b3/1p1P1PKp/2P3Pp/3RN2k/2P3Rp/3PpP1P/1n5n

#2

12 + 9

102 Probleemblad 2006

SOLUTION

  • SOUND
  • Sets
    • 1...Bxd6
      • 2.Sxd6#
    • 1...Bxf6
      • 2.Sxf6#
    • 1...Sxd2
      • 2.Sxd2#
    • 1...Sxc3
      • 2.Sxc3#
    • 1...Sxf2
      • 2.Sxf2#
    • 1...Sxg3
      • 2.Sxg3#
    • 1...bxc5
      • 2.Sxc5#
    • 1...hxg5
      • 2.Sxg5#
  • Tries
    • 1.Rf3?
      • threat
        • 2.Sg3#
        • 2.Rf4#
      • 1...Bxd6
        • 2.Sxd6#
      • 1...Bxf6
        • 2.Sxf6#
        • 2.Rf4#
      • 1...Sxd2
        • 2.Sxd2#
        • 2.Rf4#
      • 1...Sxc3
        • 2.Sxc3#
        • 2.Rf4#
      • 1...Sxf2
        • 2.Sxf2#
      • 1...bxc5
        • 2.Sxc5#
        • 2.Rf4#
      • 1...hxg5
        • 2.Sxg5#
      • 1...e1Q
        • 2.Rf4#
      • 1...e1R
        • 2.Rf4#
      • 1...Sg3
        • 2.Sxg3#
        • 2.Rf4#
      • 1...Kg4!
  • Keys
    • 1.Re3!
      • threat
        • 2.Sg3#
      • 1...Kg4
        • 2.Sg3#
      • 1...Bxd6
        • 2.Sxd6#
      • 1...Bxf6
        • 2.Sxf6#
      • 1...Sxd2
        • 2.Sxd2#
      • 1...Sxc3
        • 2.Sxc3#
      • 1...Sxf2
        • 2.Sxf2#
      • 1...bxc5
        • 2.Sxc5#
      • 1...hxg5
        • 2.Sxg5#
      • 1...Sg3
        • 2.Sxg3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • B(i);XP(J)::R(F)+S(G),XB(i)
    • B(i);XP(K)::R(F)+S(G),XB(i)
    • S(a);XP(A)::R(F)+S(G),XS(a)
    • S(a);XP(D)::R(F)+S(G),XS(a)
    • S(b);XP(B)::R(F)+S(G),XS(b)
    • S(b);XR(E)::R(F)+S(G),XS(b)
    • P(g);XP(H)::R(F)+S(G),XP(g)
    • P(h);XP(I)::R(F)+S(G),XP(h)
  • Tries
    • Try
      • R(E);
      • Threat
        • DUALS(2)
      • Vars
        • B(i);XP(J)::R(F)+S(G),XB(i)
        • S(b);XP(B)::R(F)+S(G),XS(b)
        • P(h);XP(I)::R(F)+S(G),XP(h)
        • P(c);::R(E)
      • Refutation
        • K(e);P-FLIGHT
  • Actual
    • R(E);
    • Threat
      • R(F)+S(G)
    • Vars
      • K(e);P-FLIGHT::R(F)+S(G)
      • B(i);XP(J)::R(F)+S(G),XB(i)
      • B(i);XP(K)::R(F)+S(G),XB(i)
      • S(a);XP(A)::R(F)+S(G),XS(a)
      • S(a);XP(D)::R(F)+S(G),XS(a)
      • S(b);XP(B)::R(F)+S(G),XS(b)
      • P(g);XP(H)::R(F)+S(G),XP(g)
      • P(h);XP(I)::R(F)+S(G),XP(h)
      • S(b);::R(F)+S(G),XS(b)
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