MESON Chess Problem Database

Problem Display
PID: 129889 (4N3/rp3p1K/1Q6/p4k2/3p1P1b/2p2R1P/p3n1P1/1b6 w - - 0 1)

Chocolous, Jiri

Otto Fuss Ty., 1918

4N3/rp3p1K/1Q6/p4k2/3p1P1b/2p2R1P/p3n1P1/1b6

#2

7 + 11

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Be4
      • 2.Sg7#
      • 2.g4#
  • Tries
    • 1.Qc5+?
      • 1...Ke4
        • 2.Sd6#
        • 2.Qe5#
      • 1...Ke6+!
    • 1.Qb5+?
      • 1...Ke4
        • 2.Sd6#
        • 2.Qe5#
      • 1...Ke6+!
    • 1.Qc6?
      • threat
        • 2.Sg7#
        • 2.Qd5#
        • 2.g4#
      • 1...Sxf4
        • 2.Qd5#
      • 1...Be4
        • 2.Sg7#
        • 2.Qd7#
        • 2.Qc8#
        • 2.g4#
      • 1...Bg3
        • 2.Sg7#
        • 2.Qd5#
      • 1...Bf6
        • 2.g4#
      • 1...Sg3
        • 2.Sg7#
        • 2.Qd5#
      • 1...bxc6!
    • 1.Qd6?
      • threat
        • 2.Qe5#
        • 2.Qd5#
      • 1...Ke4
        • 2.Qe5#
      • 1...Sxf4
        • 2.Qd5#
      • 1...Be4
        • 2.Sg7#
        • 2.Qe5#
        • 2.Qd7#
        • 2.g4#
      • 1...f6
        • 2.Qd5#
      • 1...Bf6!
    • 1.Qf6+?
      • 1...Ke4
        • 2.Qe5#
      • 1...Bxf6!
  • Keys
    • 1.Qb3!
      • threat
        • 2.Qd5#
      • 1...Ke4
        • 2.Sd6#
      • 1...Be4
        • 2.g4#
      • 1...Bf6
        • 2.Sd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(E);CHECK
      • Refutation
        • K(h);CHECK,S_FLIGHT
    • Try
      • Q(E);CHECK
      • Refutation
        • K(h);CHECK,S_FLIGHT
    • Try
      • Q(E);
      • Threat
        • DUALS(3)
      • Vars
        • S(c);P_SPINS(c),XP(D)::QAR2(E)
        • B(f);::P(A)
      • Refutation
        • P(j);XQ(E)
    • Try
      • Q(E);
      • Threat
        • DUALS(2)
      • Vars
        • K(h);S_FLIGHT::QAR1(E)
        • S(c);P_SPINS(c),XP(D)::QAR2(E)
        • P(k);::QAR2(E)
      • Refutation
        • B(f);
    • Try
      • Q(E);CHECK
      • Vars
        • K(h);S_FLIGHT::QAR1(E)
      • Refutation
        • B(f);XQ(E)
  • Actual
    • Q(E);
    • Threat
      • QAR2(E)
    • Vars
      • K(h);S_FLIGHT::S(G)
      • B(a);SBLOCK::P(A)
      • B(f);SBLOCK::S(G)
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