MESON Chess Problem Database

Problem Display
PID: 24613 (4N1K1/1r3p1B/8/R2pkP2/4N3/3PP3/b1p4n/n7 w - - 0 1)

Savournin, Jacques

Europe Echecs, 1966

4N1K1/1r3p1B/8/R2pkP2/4N3/3PP3/b1p4n/n7

#2

8 + 8

23 Die Schwalbe 2002
145 StrateGems 2004

SOLUTION

  • SOUND
  • Tries
    • 1.Sd2?
      • threat
        • 2.d4#
      • 1...Sb3
        • 2.Sc4#
      • 1...Sf3
        • 2.Sxf3#
      • 1...Rb4!
    • 1.Sg5?
      • threat
        • 2.d4#
      • 1...Rb4
        • 2.Sxf7#
      • 1...Sf3
        • 2.Sxf3#
      • 1...Sb3!
    • 1.S4d6?
      • threat
        • 2.d4#
      • 1...Rb4
        • 2.Sxf7#
      • 1...Sb3
        • 2.Sc4#
      • 1...Sf3!
    • 1.S8f6?
      • threat
        • 2.d4#
      • 1...Rb4
        • 2.Sd7#
      • 1...Sb3
        • 2.Rxd5#
      • 1...Sf3
        • 2.Sg4#
      • 1...Rb8+!
  • Keys
    • 1.S4f6!
      • threat
        • 2.d4#
      • 1...Rb4
        • 2.Sd7#
      • 1...Sb3
        • 2.Rxd5#
      • 1...Sf3
        • 2.Sg4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(C);
      • Threat
        • P(A)
      • Vars
        • S(a);S_CUTB(b)::S(C)
        • S(d);N_GUARD::S(C),XS(d)
      • Refutation
        • R(g);
    • Try
      • S(C);
      • Threat
        • P(A)
      • Vars
        • R(g);N_GUARD::S(C),XP(h)
        • S(d);N_GUARD::S(C),XS(d)
      • Refutation
        • S(a);
    • Try
      • S(C);
      • Threat
        • P(A)
      • Vars
        • R(g);N_GUARD::S(C),XP(h)
        • S(a);S_CUTB(b)::S(C)
      • Refutation
        • S(d);
    • Try
      • S(G);
      • Threat
        • P(A)
      • Vars
        • R(g);N_GUARD::S(G)
        • S(a);S_CUTB(b)::R1(D),XP(e)
        • S(d);N_GUARD::S(G)
      • Refutation
        • R(g);CHECK
  • Actual
    • S(C);
    • Threat
      • P(A)
    • Vars
      • R(g);N_GUARD::S(C)
      • S(a);S_CUTB(b)::R1(D),XP(e)
      • S(d);N_GUARD::S(C)
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