MESON Chess Problem Database

Problem Display
PID: 58839 (1B2n2b/3N1bq1/1ppP2BQ/1N1k1P2/1p2p3/1Kp5/4R3/8 w - - 0 1)

Savournin, Jacques

4th Comm., L'Italia Scacchistica, 1966

1B2n2b/3N1bq1/1ppP2BQ/1N1k1P2/1p2p3/1Kp5/4R3/8

#2

9 + 10

3772 FIDE Album (1965-1967) 1976

SOLUTION

  • SOUND
  • Sets
    • 1...Qd4
      • 2.Bxf7#
    • 1...e3
      • 2.Qh1#
  • Tries
    • 1.Rd2+?
      • 1...Qd4
        • 2.Bxf7#
      • 1...cxd2!
    • 1.Qd2+?
      • 1...Qd4
        • 2.Bxf7#
      • 1...cxd2!
    • 1.Qf4?
      • threat
        • 2.Qxe4#
      • 1...Sxd6
        • 2.Qxd6#
      • 1...Qd4
        • 2.Bxf7#
      • 1...Sf6
        • 2.Qe5#
      • 1...e3
        • 2.Qf3#
        • 2.Qc4#
      • 1...Qe5!
  • Keys
    • 1.Qe3!
      • threat
        • 2.Qxe4#
      • 1...Sxd6
        • 2.Sc7#
      • 1...Qd4
        • 2.Bxf7#
      • 1...Qe5
        • 2.Sxb6#
      • 1...Sf6
        • 2.Qd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • Q(h);N_GUARD::B(F),XB(g)
    • P(c);OGATEB::QAB(G)
  • Tries
    • Try
      • R(A);CHECK
      • Vars
        • Q(h);P_SPINQ(h)::B(F),XB(g)
      • Refutation
        • P(a);XR(A)
    • Try
      • Q(G);CHECK
      • Vars
        • Q(h);P_SPINQ(h)::B(F),XB(g)
      • Refutation
        • P(a);XQ(G)
    • Try
      • Q(G);
      • Threat
        • QAB1(G),XP(c)
      • Vars
        • S(i);OGATE,XP(E)::QAR1(G),XS(i)
        • Q(h);N_GUARD::B(F),XB(g)
        • S(i);S_CUTQ(h)::QAR1(G)
      • Refutation
        • Q(h);
  • Actual
    • Q(G);
    • Threat
      • QAB1(G),XP(c)
    • Vars
      • S(i);N_GUARD,SBLOCK,XP(E)::S(C)
      • Q(h);N_GUARD::B(F),XB(g)
      • Q(h);SBLOCK::S(H),XP(e)
      • S(i);S_CUTQ(h)::QAR1(G)
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