MESON Chess Problem Database

Problem Display
PID: 135679 (3N4/3Rp3/5p2/1r1bk1p1/R2b4/3pr1P1/3NPQp1/2B3K1 w - - 0 1)

Ancin, Andrej

Praca, 1958

3N4/3Rp3/5p2/1r1bk1p1/R2b4/3pr1P1/3NPQp1/2B3K1

#2

9 + 10

14649 Andrej Ancin - Chess Compositions 2008

SOLUTION

  • SOUND
  • Sets
    • 1...Be4
      • 2.Sc4#
    • 1...Be6
      • 2.Sc6#
    • 1...g4
      • 2.Qf4#
    • 1...e6
      • 2.Sf7#
  • Keys
    • 1.g4!
      • threat
        • 2.Qf5#
      • 1...Rxe2
        • 2.Qxd4#
      • 1...Rf3
        • 2.Qxd4#
      • 1...Bf3
        • 2.Qg3#
      • 1...f5
        • 2.Qxf5#
      • 1...Rg3
        • 2.Qxd4#
      • 1...Rh3
        • 2.Qxd4#
      • 1...Re4
        • 2.Sf3#
      • 1...Be4
        • 2.Sc4#
      • 1...Be6
        • 2.Sc6#
      • 1...e6
        • 2.Sf7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 1
  • Sets
    • B(f);N_GUARD,SBLOCK::S(C)
    • B(f);N_GUARD,SBLOCK::S(I)
    • P(h);N_GUARD::QAB1(E)
    • P(j);SBLOCK,S_CUTB(f)::S(I)
  • Actual
    • P(F);
    • Threat
      • QAR1(E)
    • Vars
      • R(c);OGATE,P_PINQ(E),XP(D)::QAB1(E),XB(d)
      • R(c);OGATE,P_PINQ(E)::QAB1(E),XB(d)
      • B(f);S_CUTR(c)::QAB(E)
      • P(i);::QAR1(E),XP(i)
      • R(c);N_GUARD,P_PINQ(E),SBLOCK,S_CUTB(f)::S(C)
      • B(f);N_GUARD,SBLOCK::S(C)
      • B(f);N_GUARD,SBLOCK::S(I)
      • P(j);SBLOCK,S_CUTB(f)::S(I)
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