MESON Chess Problem Database

Problem Display
PID: 114885 (8/5N2/3PpR1B/8/N1K1k1P1/2p3r1/8/6b1 w - - 0 1)

Armeni, Alberto

Canadian Chess Chat, 1982

8/5N2/3PpR1B/8/N1K1k1P1/2p3r1/8/6b1

#2

7 + 5

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rg2
      • 2.Sxc3#
    • 1...Re3
      • 2.Sc5#
      • 2.Rf4#
    • 1...Rf3
      • 2.Rxe6#
    • 1...Rxg4
      • 2.Sxc3#
    • 1...Bh2
      • 2.Sc5#
    • 1...Be3
      • 2.Sxc3#
    • 1...Bc5
      • 2.Sxc5#
  • Tries
    • 1.Bd2?
      • threat
        • 2.Rf4#
      • 1...Rxg4
        • 2.Sxc3#
      • 1...Re3
        • 2.Sc5#
      • 1...Rf3
        • 2.Rxe6#
      • 1...Be3
        • 2.Sxc3#
      • 1...e5
        • 2.Sg5#
      • 1...cxd2!
  • Keys
    • 1.Bc1!
      • threat
        • 2.Rf4#
      • 1...Rxg4
        • 2.Sxc3#
      • 1...Re3
        • 2.Sc5#
      • 1...Rf3
        • 2.Rxe6#
      • 1...Be3
        • 2.Sxc3#
      • 1...e5
        • 2.Sg5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 3
  • Sets
    • R(c);N_GUARD::S(A),XP(b)
    • R(c);SBLOCK::R(E),XP(e)
    • R(c);N_GUARD,XP(C)::S(A),XP(b)
    • B(a);N_GUARD::S(A)
    • B(a);S_CUTR(c)::S(A),XP(b)
    • B(a);N_GUARD::S(A),XB(a)
  • Tries
    • Try
      • B(F);
      • Threat
        • R1(E)
      • Vars
        • R(c);N_GUARD,XP(C)::S(A),XP(b)
        • R(c);S_CUTB(a)::S(A)
        • R(c);SBLOCK::R(E),XP(e)
        • B(a);S_CUTR(c)::S(A),XP(b)
        • P(e);SBLOCK::S(G)
      • Refutation
        • P(b);XB(F)
  • Actual
    • B(F);
    • Threat
      • R1(E)
    • Vars
      • R(c);N_GUARD,XP(C)::S(A),XP(b)
      • R(c);S_CUTB(a)::S(A)
      • R(c);SBLOCK::R(E),XP(e)
      • B(a);S_CUTR(c)::S(A),XP(b)
      • P(e);SBLOCK::S(G)
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