MESON Chess Problem Database

Problem Display
PID: 267582 (K3R3/8/p5p1/N1nNnp2/2Bk4/2p5/2p1pPQ1/3q4 w - - 0 1)

Zalokotsky, Roman Fedorovich (aka Fedorovich, Roman)

Shakhmatnaya kompozitsiya, 1993

K3R3/8/p5p1/N1nNnp2/2Bk4/2p5/2p1pPQ1/3q4

#2

7 + 10

SOLUTION

  • SOUND
  • Tries
    • 1.Sb4?
      • threat
        • 2.Qd5#
      • 1...Qh1
        • 2.Sxc2#
      • 1...Sf3
        • 2.Sbc6#
      • 1...Se4!
    • 1.Sf4?
      • threat
        • 2.Qd5#
      • 1...Se4
        • 2.Se6#
      • 1...Qh1
        • 2.Sxe2#
      • 1...Sf3!
    • 1.Sb6?
      • threat
        • 2.Qd5#
      • 1...Se4
        • 2.Sb3#
      • 1...Sf3
        • 2.Sc6#
      • 1...Qh1!
  • Keys
    • 1.Se3!
      • threat
        • 2.Qd5#
      • 1...Se4
        • 2.Sb3#
      • 1...Qh1
        • 2.Sxc2#
      • 1...Sf3
        • 2.Sc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(E);
      • Threat
        • QAR1(B)
      • Vars
        • Q(a);N_GUARD,P_PINQ(B)::S(E),XP(b)
        • S(g);N_GUARD::S(E)
      • Refutation
        • S(f);
    • Try
      • S(E);
      • Threat
        • QAR1(B)
      • Vars
        • S(f);N_GUARD::S(E)
        • Q(a);N_GUARD,P_PINQ(B)::S(E),XP(c)
      • Refutation
        • S(g);
    • Try
      • S(E);
      • Threat
        • QAR1(B)
      • Vars
        • S(f);N_GUARD::S(D)
        • S(g);N_GUARD::S(D)
      • Refutation
        • Q(a);P_PINQ(B)
  • Actual
    • S(E);
    • Threat
      • QAR1(B)
    • Vars
      • S(f);N_GUARD::S(D)
      • Q(a);N_GUARD,P_PINQ(B)::S(E),XP(b)
      • S(g);N_GUARD::S(D)
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