MESON Chess Problem Database

Problem Display
PID: 61929 (4N2b/2R1p1q1/1p1p3r/1P1k1Bp1/6N1/8/8/2R2KB1 w - - 0 1)

Feoktistov, Aleksandr Fedorovich

1st HM., Eretria Quick Ty., 2005

4N2b/2R1p1q1/1p1p3r/1P1k1Bp1/6N1/8/8/2R2KB1

#2

8 + 8

5673 Eretria Bulletin 2005

SOLUTION

  • SOUND
  • Sets
    • 1...Rf6
      • 2.Rd1#
    • 1...e5
      • 2.Rd1#
  • Tries
    • 1.Sef6+?
      • 1...Rxf6
        • 2.Rd1#
      • 1...exf6
        • 2.Rd1#
      • 1...Qxf6!
    • 1.R7c4?
      • threat
        • 2.Sc7#
      • 1...e5
        • 2.Se3#
      • 1...e6
        • 2.Be4#
      • 1...Qc3!
    • 1.R7c5+?
      • 1...bxc5
        • 2.Sc7#
      • 1...dxc5!
  • Keys
    • 1.R7c6!
      • threat
        • 2.Sc7#
      • 1...e5
        • 2.Rd1#
      • 1...e6
        • 2.Rxd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • R(e);P_PINB(F),S_CUTQ(g)::R(A)
    • P(f);S_CUTQ(g)::R(A)
  • Tries
    • Try
      • S(H);CHECK
      • Vars
        • R(e);P_PINB(F),XS(H)::R(A)
        • P(f);XS(H)::R(A)
      • Refutation
        • Q(g);P_PINB(F),XS(H)
    • Try
      • R(G);
      • Threat
        • S(H)
      • Vars
        • P(f);SBLOCK::S(D)
        • P(f);SBLOCK::B(F)
      • Refutation
        • Q(g);
    • Try
      • R(G);CHECK
      • Vars
        • P(c);XR(G)::S(H)
      • Refutation
        • P(d);XR(G)
  • Actual
    • R(G);
    • Threat
      • S(H)
    • Vars
      • P(f);S_CUTQ(g)::R(A)
      • P(f);N_GUARD,S_CUTR(e)::R1(G),XP(d)
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