MESON Chess Problem Database

Problem Display
PID: 102374 (KQ2R3/1PNr4/7B/R1P3N1/1P1k4/4nP2/bP2Bn2/8 w - - 0 1)

Boyer, Jean-Pierre

Europe Echecs, 1965

KQ2R3/1PNr4/7B/R1P3N1/1P1k4/4nP2/bP2Bn2/8

#2

13 + 5

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rd5
      • 2.Sb5#
      • 2.Sce6#
    • 1...Rg7
      • 2.Bxg7#
    • 1...Rd8
      • 2.Bg7#
    • 1...Bd5
      • 2.Sb5#
    • 1...Bf7
      • 2.Bg7#
    • 1...Sfd1
      • 2.Re4#
    • 1...Sh1
      • 2.Re4#
    • 1...Sd3
      • 2.Re4#
    • 1...Sh3
      • 2.Re4#
    • 1...Se4
      • 2.Rxe4#
    • 1...Sfg4
      • 2.Re4#
    • 1...Sd5
      • 2.Sb5#
  • Keys
    • 1.c6!
      • threat
        • 2.Qa7#
      • 1...Sd3
        • 2.Re4#
      • 1...Rd5
        • 2.Sce6#
      • 1...Rd8
        • 2.Bg7#
      • 1...Se4
        • 2.Rxe4#
      • 1...Sc4
        • 2.Sge6#
      • 1...Sd5
        • 2.Sb5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 7
  • Sets
    • R(e);N_GUARD::B(H),XR(e)
    • R(e);N_GUARD,P_PINQ(L)::B(H)
    • B(a);P_PINP(I),SBLOCK::S(J)
    • B(a);S_CUTR(e)::B(H)
    • S(b);N_GUARD::R1(M)
    • S(b);N_GUARD::R1(M),XS(b)
    • S(c);SBLOCK::S(J)
  • Actual
    • P(F);
    • Threat
      • QAB(L)
    • Vars
      • S(b);N_GUARD::R1(M)
      • R(e);S_CUTB(a)::S(J)
      • R(e);N_GUARD,P_PINQ(L)::B(H)
      • S(b);N_GUARD::R1(M),XS(b)
      • S(c);S_CUTB(a)::S(G)
      • S(c);SBLOCK::S(J)
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