MESON Chess Problem Database

Problem Display
PID: 214675 (4R3/4b3/Q7/8/3pp3/3Nk3/8/3K4 w - - 0 1)

Klark, Dmitry Vasilevich

Vsemirnaya Illustrantiya, 1879

4R3/4b3/Q7/8/3pp3/3Nk3/8/3K4

#2

4 + 4

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Qh6+?
      • 1...Kf3
        • 2.Qh3#
      • 1...Bg5
        • 2.Qh3#
      • 1...Kxd3!
  • Keys
    • 1.Qe6!
      • threat
        • 2.Qh3#
      • 1...Kxd3
        • 2.Qb3#
      • 1...Kf3
        • 2.Qh3#
      • 1...Bh4
        • 2.Qxe4#
      • 1...Bd6
        • 2.Qxe4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(C);CHECK
      • Vars
        • K(a);P-FLIGHT::QAR2(C)
        • B(d);P_SPINB(d),P_SPINP(c)::QAR(C)
      • Refutation
        • K(a);P-FLIGHT,XS(B)
  • Actual
    • Q(C);P_PINP(c)
    • Threat
      • QAR(C)
    • Vars
      • K(a);N_SPINP(c),OGATEB,P-FLIGHT,XS(B)::QAR2(C)
      • K(a);N_SPINP(c),P-FLIGHT::QAR2(C)
      • B(d);::QAR1(C),XP(c)
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