MESON Chess Problem Database

Problem Display
PID: 117337 (K7/BBP1n2b/N3p3/R7/rp6/1P1kPP2/1P5R/8 w - - 0 1)

le Grand, Henk

le Grand, Piet

Boletim da UBP, 1965

K7/BBP1n2b/N3p3/R7/rp6/1P1kPP2/1P5R/8

#2

11 + 6

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Ra1
      • 2.Sxb4#
    • 1...Ra2
      • 2.Sxb4#
    • 1...Ra3
      • 2.Sxb4#
    • 1...Rxa5
      • 2.Sxb4#
    • 1...Be4
      • 2.Bxe4#
    • 1...Bg8
      • 2.Be4#
    • 1...Sf5
      • 2.Be4#
    • 1...Sg6
      • 2.Be4#
  • Tries
    • 1.Sb8?
      • threat
        • 2.Ba6#
      • 1...Be4
        • 2.Bxe4#
      • 1...Rxa5!
    • 1.Bc6?
      • threat
        • 2.Bb5#
      • 1...Rxa5
        • 2.Sxb4#
      • 1...Be4
        • 2.Bxe4#
      • 1...Sxc6!
  • Keys
    • 1.Re5!
      • threat
        • 2.Sc5#
      • 1...Rxa6
        • 2.Bxa6#
      • 1...Ra5
        • 2.Sxb4#
      • 1...Be4
        • 2.Bxe4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 6
  • Sets
    • R(b);N_GUARD::S(G),XP(c)
    • R(b);N_GUARD,XR(F)::S(G),XP(c)
    • B(f);N_GUARD,P_PINB(I)::B(I),XB(f)
    • B(f);N_GUARD::B(I)
    • S(e);S_CUTB(f)::B(I)
  • Tries
    • Try
      • S(G);
      • Threat
        • B(I)
      • Vars
        • B(f);N_GUARD,P_PINB(I)::B(I),XB(f)
      • Refutation
        • R(b);P_PINB(H),XR(F)
    • Try
      • B(I);
      • Threat
        • B(I)
      • Vars
        • R(b);N_GUARD,XR(F)::S(G),XP(c)
        • B(f);N_GUARD,P_PINB(I)::B(I),XB(f)
      • Refutation
        • S(e);XB(I)
  • Actual
    • R(F);
    • Threat
      • S(G)
    • Vars
      • R(b);OGATE,P_PINB(H),XS(G)::B(I),XR(b)
      • R(b);N_GUARD::S(G),XP(c)
      • B(f);N_GUARD,P_PINB(I)::B(I),XB(f)
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