MESON Chess Problem Database

Problem Display
PID: 104360 (4Q3/8/8/8/8/1KRP4/3k4/8 w - - 0 1)

Khramtsevich, Mikhail Nikolaevich

Lebedev, Leonid Arsentevich

Babruiskae zhytisse, 1993

4Q3/8/8/8/8/1KRP4/3k4/8

#2

4 + 1

6490 yacpdb 2009
5454 Near Snap 2019

SOLUTION

  • SOUND
  • Tries
    • 1.Rc2+?
      • 1...Kd1
        • 2.Qe2#
      • 1...Kxd3!
    • 1.Rc5?
      • 1...Kxd3
        • 2.Rd5#
      • 1...Kd1!
    • 1.Rc6?
      • 1...Kxd3
        • 2.Rd6#
      • 1...Kd1!
    • 1.Rc7?
      • 1...Kxd3
        • 2.Rd7#
      • 1...Kd1!
    • 1.Rc8?
      • 1...Kxd3
        • 2.Rd8#
      • 1...Kd1!
    • 1.Qe3+?
      • 1...Kd1
        • 2.Rc1#
      • 1...Kxe3!
  • Keys
    • 1.Rc1!
      • 1...Kxc1
        • 2.Qe1#
      • 1...Kxd3
        • 2.Rd1#

Anticipated by 190096(1913)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(B);CHECK
      • Vars
        • K(a);P-FLIGHT::QAB1(D)
      • Refutation
        • K(a);P-FLIGHT,XP(C)
    • Try
      • R(B);
      • Vars
        • K(a);OGATEB,P-FLIGHT,XP(C)::R(B)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • R(B);
      • Vars
        • K(a);OGATEB,P-FLIGHT,XP(C)::R(B)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • R(B);
      • Vars
        • K(a);OGATEB,P-FLIGHT,XP(C)::R(B)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • R(B);
      • Vars
        • K(a);OGATEB,P-FLIGHT,XP(C)::R(B)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(D);CHECK
      • Vars
        • K(a);P-FLIGHT::R1(B)
      • Refutation
        • K(a);S_FLIGHT,XQ(D)
  • Actual
    • R(B);
    • Vars
      • K(a);S_FLIGHT,XR(B)::QAR2(D)
      • K(a);P-FLIGHT,XP(C)::R(B)
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