MESON Chess Problem Database

Problem Display
PID: 225371 (n5K1/3p2p1/3Bk1B1/1N3R2/2np4/7b/2r1p3/4Q3 w - - 0 1)

Banny, Dimitry Nikolaevich

Praca, 1997

n5K1/3p2p1/3Bk1B1/1N3R2/2np4/7b/2r1p3/4Q3

#2

6 + 9

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Qf2?
      • threat
        • 2.Bf7#
      • 1...Bxf5
        • 2.Qxf5#
      • 1...Se5
        • 2.Rxe5#
      • 1...Sxd6!
  • Keys
    • 1.Qh4!
      • threat
        • 2.Qe7#
      • 1...Bxf5
        • 2.Bf7#
      • 1...Sxd6
        • 2.Sxd4#
      • 1...Se5
        • 2.Rxe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(A);N_PINP(b)
      • Threat
        • B(E)
      • Vars
        • B(c);OGATE,XR(C)::QAB1(A),XB(c)
        • S(d);N_GUARD::R1(C),XS(d)
      • Refutation
        • S(d);XB(D)
  • Actual
    • Q(A);N_PINP(b)
    • Threat
      • QAR1(A)
    • Vars
      • B(c);SBLOCK,XR(C)::B(E)
      • S(d);SBLOCK,XB(D)::S(B),XP(e)
      • S(d);N_GUARD::R1(C),XS(d)
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