MESON Chess Problem Database

Problem Display
PID: 105533 (2n5/6Q1/2p4N/4p1B1/4k3/1K2p3/4P3/3N4 w - - 0 1)

Costin, Victor

La Presse, 1898

2n5/6Q1/2p4N/4p1B1/4k3/1K2p3/4P3/3N4

#2

6 + 5

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Sg4?
      • threat
        • 2.Qxe5#
      • 1...Kd4
        • 2.Qxe5#
      • 1...Kd5
        • 2.Qxe5#
      • 1...Kf5!
    • 1.Sf7?
      • threat
        • 2.Qxe5#
      • 1...Kd4
        • 2.Qxe5#
      • 1...Kd5
        • 2.Qxe5#
      • 1...Kf5!
  • Keys
    • 1.Bf4!
      • threat
        • 2.Qxe5#
      • 1...Kd4
        • 2.Qxe5#
      • 1...Kxf4
        • 2.Qg4#
      • 1...Kd5
        • 2.Qxe5#
      • 1...exf4
        • 2.Sc3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(E);
      • Threat
        • QAR1(F),XP(c)
      • Vars
        • K(b);P-FLIGHT,P_SPINP(c)::QAB1(F),XP(c)
        • K(b);S_FLIGHT::QAR1(F),XP(c)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • S(E);
      • Threat
        • QAR1(F),XP(c)
      • Vars
        • K(b);P-FLIGHT,P_SPINP(c)::QAB1(F),XP(c)
        • K(b);S_FLIGHT::QAR1(F),XP(c)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • B(D);
    • Threat
      • QAR1(F),XP(c)
    • Vars
      • K(b);P-FLIGHT,P_SPINP(c)::QAB1(F),XP(c)
      • K(b);OGATEB,P-FLIGHT,XB(D)::QAR1(F)
      • K(b);S_FLIGHT::QAR1(F),XP(c)
      • P(c);SBLOCK,XB(D)::S(A)
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