MESON Chess Problem Database

Problem Display
PID: 155861 (8/4Q3/4B3/8/5P2/3N4/4k3/2B4K w - - 0 1)

Janicijevic, Svetislav

Politika Express, 1966

8/4Q3/4B3/8/5P2/3N4/4k3/2B4K

#2

6 + 1

23 Die Schwalbe 2015
5454 Near Snap 2016

SOLUTION

  • SOUND
  • Sets
    • 1...Kd1
      • 2.Bb3#
    • 1...Kf1
      • 2.Bh3#
  • Tries
    • 1.Kg2?
      • 1...Kd1
        • 2.Bb3#
      • 1...Kxd3!
    • 1.Bb3+?
      • 1...Kf1
        • 2.Qe1#
      • 1...Kxd3
        • 2.Qe3#
      • 1...Kf3!
    • 1.Bc4+?
      • 1...Kd1
        • 2.Bb3#
      • 1...Kf1
        • 2.Qe1#
      • 1...Kf3!
    • 1.Bg4+?
      • 1...Kf1
        • 2.Be2#
        • 2.Bh3#
        • 2.Qe1#
        • 2.Qe2#
      • 1...Kxd3!
    • 1.Bd5+?
      • 1...Kd1
        • 2.Bb3#
      • 1...Kf1
        • 2.Bg2#
        • 2.Qe1#
      • 1...Kxd3!
    • 1.Bf5+?
      • 1...Kf1
        • 2.Bh3#
        • 2.Qe1#
      • 1...Kf3
        • 2.Qe3#
      • 1...Kd1!
    • 1.Bd7+?
      • 1...Kd1
        • 2.Ba4#
      • 1...Kf1
        • 2.Bh3#
        • 2.Qe1#
      • 1...Kf3
        • 2.Qe3#
      • 1...Kxd3!
    • 1.Qb4?
      • 1...Kd1
        • 2.Qd2#
      • 1...Kf1
        • 2.Qe1#
      • 1...Kxd3
        • 2.Qc4#
      • 1...Kf3!
  • Keys
    • 1.Qc5!
      • 1...Kd1
        • 2.Bg4#
      • 1...Kf1
        • 2.Qf2#
      • 1...Kxd3
        • 2.Qc4#
      • 1...Kf3
        • 2.Qe3#

This anticipates 10625(1966-1969), 102917(2006)

This is a version of 10630

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 2
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(a);S_FLIGHT::B(E)
  • Tries
    • Try
      • K(B);S_FLIGHT
      • Vars
        • K(a);S_FLIGHT::B(E)
      • Refutation
        • K(a);S_FLIGHT,XS(C)
    • Try
      • B(E);CHECK
      • Vars
        • K(a);OGATE,S_FLIGHT::QAR1(F)
        • K(a);S_FLIGHT,XS(C)::QAR1(F)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(E);CHECK
      • Vars
        • K(a);S_FLIGHT::B(E)
        • K(a);OGATE,S_FLIGHT::QAR1(F)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(E);CHECK
      • Refutation
        • K(a);S_FLIGHT,XS(C)
    • Try
      • B(E);CHECK
      • Vars
        • K(a);S_FLIGHT::B(E)
      • Refutation
        • K(a);S_FLIGHT,XS(C)
    • Try
      • B(E);CHECK
      • Vars
        • K(a);S_FLIGHT::QAR1(F)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(E);CHECK
      • Vars
        • K(a);S_FLIGHT::B(E)
        • K(a);S_FLIGHT::QAR1(F)
      • Refutation
        • K(a);S_FLIGHT,XS(C)
    • Try
      • Q(F);
      • Vars
        • K(a);S_FLIGHT::QAR1(F)
        • K(a);OGATEB,S_FLIGHT,XS(C)::QAB1(F)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • Q(F);
    • Vars
      • K(a);S_FLIGHT::B(E)
      • K(a);S_FLIGHT::QAR1(F)
      • K(a);OGATEB,S_FLIGHT,XS(C)::QAB1(F)
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