MESON Chess Problem Database

Problem Display
PID: 225446 (8/1p6/bp6/1Bk1PpR1/8/P3P3/K2Q4/8 w - - 0 1)

Dyachuk, Vasyl Vasilovich

5th HM., Praca, 1997

8/1p6/bp6/1Bk1PpR1/8/P3P3/K2Q4/8

#2

7 + 5

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...f4
      • 2.e6#
  • Tries
    • 1.Rg6?
      • 1...Kxb5
        • 2.Qb4#
      • 1...Bxb5
        • 2.Qd4#
      • 1...f4!
    • 1.Qd7?
      • 1...f4
        • 2.e6#
      • 1...Bxb5!
    • 1.e4?
      • threat
        • 2.Qb4#
        • 2.Qd5#
      • 1...Bxb5
        • 2.Qd5#
      • 1...fxe4
        • 2.e6#
      • 1...Kxb5!
  • Keys
    • 1.Kb3!
      • 1...Kxb5
        • 2.Qd5#
      • 1...Bxb5
        • 2.Qd6#
      • 1...f4
        • 2.e6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • P(b);::R(G)+P(F)
  • Tries
    • Try
      • R(G);
      • Vars
        • K(a);P-FLIGHT,XB(E)::QAR1(B)
        • B(c);SBLOCK,XB(E)::QAB1(B)
      • Refutation
        • P(b);
    • Try
      • Q(B);
      • Vars
        • P(b);::R(G)+P(F)
      • Refutation
        • B(c);XB(E)
    • Try
      • P(D);
      • Threat
        • DUALS(2)
      • Vars
        • B(c);SBLOCK,XB(E)::QAR1(B)
        • P(b);XP(D)::R(G)+P(F)
      • Refutation
        • K(a);P-FLIGHT,XB(E)
  • Actual
    • K(A);S_FLIGHT
    • Vars
      • K(a);P-FLIGHT,XB(E)::QAR2(B)
      • B(c);SBLOCK,XB(E)::QAB1(B)
      • P(b);::R(G)+P(F)
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