MESON Chess Problem Database

Problem Display
PID: 121219 (8/8/R2p4/2k5/3N4/2BK4/3P4/8 w - - 0 1)

Glisic, Dejan I

Feniks, 2003

8/8/R2p4/2k5/3N4/2BK4/3P4/8

#2

5 + 2

3713 Snap 2009
6490 yacpdb 2009
5454 Near Snap 2016

SOLUTION

  • SOUND
  • Sets
    • 1...Kd5
      • 2.Ra5#
    • 1...d5
      • 2.Rc6#
  • Tries
    • 1.Ke4?
      • threat
        • 2.Rc6#
      • 1...Kc4
        • 2.Rc6#
      • 1...d5+!
    • 1.Bb4+?
      • 1...Kd5
        • 2.Ra5#
      • 1...Kxb4!
    • 1.Ba5?
      • 1...d5
        • 2.Rc6#
      • 1...Kd5!
    • 1.Rb6?
      • threat
        • 2.Rb5#
      • 1...Kd5
        • 2.Rb5#
      • 1...d5
        • 2.Rc6#
      • 1...Kxb6!
  • Keys
    • 1.Bb2!
      • 1...Kb4
        • 2.Ba3#
      • 1...Kd5
        • 2.Ra5#
      • 1...d5
        • 2.Ba3#

Anticipated by 157547(1926), 104670(1946)

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(a);P-FLIGHT::R(E)
    • P(b);SBLOCK::R1(E)
  • Tries
    • Try
      • K(C);S_FLIGHT
      • Threat
        • R1(E)
      • Vars
        • K(a);P-FLIGHT::R(E)
      • Refutation
        • P(b);CHECK
    • Try
      • B(B);CHECK
      • Vars
        • K(a);P-FLIGHT::R(E)
      • Refutation
        • K(a);S_FLIGHT,XB(B)
    • Try
      • B(B);
      • Vars
        • P(b);SBLOCK::R1(E)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • R(E);
      • Threat
        • R1(E)
      • Vars
        • K(a);P-FLIGHT::R(E)
        • P(b);SBLOCK::R1(E)
      • Refutation
        • K(a);S_FLIGHT,XR(E)
  • Actual
    • B(B);
    • Vars
      • K(a);S_FLIGHT::B(B)
      • K(a);P-FLIGHT::R(E)
      • P(b);SBLOCK::B(B)
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