MESON Chess Problem Database

Problem Display
PID: 60098 (8/K4N2/3Q4/1N1PPp2/1p2kp2/4pnr1/4P3/8 w - - 0 1)

Valtonen, Kari

1st Prize, Kevatpaivat Quick Ty., 2004

8/K4N2/3Q4/1N1PPp2/1p2kp2/4pnr1/4P3/8

#2

7 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Sxe5
      • 2.Qxe5#
  • Tries
    • 1.Sc3+?
      • 1...Kd4
        • 2.Qxb4#
      • 1...bxc3!
    • 1.Qxb4+?
      • 1...Sd4
        • 2.Sc3#
        • 2.Qxd4#
      • 1...Kxd5!
  • Keys
    • 1.Qc6!
      • threat
        • 2.d6#
      • 1...Sxe5
        • 2.Sfd6#
      • 1...Sd4
        • 2.Sbd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • S(b);OGATE,XP(D)::QAR1(E),XS(b)
  • Tries
    • Try
      • S(B);CHECK
      • Vars
        • K(e);P-FLIGHT::QAR2(E),XP(d)
      • Refutation
        • P(d);XS(B)
    • Try
      • Q(E);CHECK,XP(d)
      • Refutation
        • K(e);S_FLIGHT,XP(C)
  • Actual
    • Q(E);
    • Threat
      • QAB(E)+P(C)
    • Vars
      • S(b);SBLOCK,XP(D)::S(G)
      • S(b);SBLOCK::S(B)
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