MESON Chess Problem Database

Problem Display
PID: 262877 (1B2KN2/4p2B/R7/2pkp3/3b1p2/2p5/N7/5Q2 w - - 0 1)

Fokin, Yuri Georgievich

Zadachi i Etyudi, 2008

1B2KN2/4p2B/R7/2pkp3/3b1p2/2p5/N7/5Q2

#2

7 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...e6
      • 2.Rd6#
  • Tries
    • 1.Kxe7?
      • threat
        • 2.Rd6#
      • 1...e4
        • 2.Bg8#
      • 1...c4!
    • 1.Qd3?
      • threat
        • 2.Sxc3#
        • 2.Be4#
      • 1...c2
        • 2.Sc3#
        • 2.Be4#
      • 1...e4
        • 2.Sxc3#
        • 2.Bxe4#
      • 1...c4!
  • Keys
    • 1.Se6!
      • threat
        • 2.Sc7#
      • 1...Bg1
        • 2.Sxc3#
      • 1...Bf2
        • 2.Sxc3#
      • 1...Be3
        • 2.Sxc3#
      • 1...c4
        • 2.Sb4#
      • 1...e4
        • 2.Sxf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 1
  • Sets
    • P(g);N_GUARD::R1(C)
  • Tries
    • Try
      • K(F);P-FLIGHT,XP(g)
      • Threat
        • R1(C)
      • Vars
        • P(f);SBLOCK::B(D)
      • Refutation
        • P(d);
    • Try
      • Q(A);P_PINB(b)
      • Threat
        • DUALS(2)
      • Refutation
        • P(d);
  • Actual
    • S(G);
    • Threat
      • S(G)
    • Vars
      • B(b);N_GUARD::S(B),XP(a)
      • P(d);N_GUARD::S(B)
      • P(f);N_GUARD::S(G),XP(c)
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