MESON Chess Problem Database

Problem Display
PID: 79160 (2B5/8/8/8/Q7/8/3pk3/1K1N4 w - - 0 1)

Akimov, Nikolai Nikolaevich

Sachsische Zeitung, 2006

2B5/8/8/8/Q7/8/3pk3/1K1N4

#2

4 + 2

15148 Sadier Collection 2014

SOLUTION

  • SOUND
  • Sets
    • 1...Kd3
      • 2.Ba6#
    • 1...Kf3
      • 2.Qg4#
  • Tries
    • 1.Bh3?
      • 1...Kd3
        • 2.Bf1#
      • 1...Kf3
        • 2.Qg4#
      • 1...Ke1!
    • 1.Qc4+?
      • 1...Kxd1
        • 2.Qf1#
      • 1...Kf3
        • 2.Qg4#
      • 1...Ke1!
    • 1.Qe4+?
      • 1...Kxd1
        • 2.Bg4#
      • 1...Kf1!
    • 1.Qf4?
      • 1...Kxd1
        • 2.Qf1#
      • 1...Kd3
        • 2.Ba6#
      • 1...Ke1!
  • Keys
    • 1.Qh4!
      • 1...Kxd1
        • 2.Bg4#
      • 1...Kf1
        • 2.Qf2#
      • 1...Kd3
        • 2.Ba6#
      • 1...Kf3
        • 2.Qg4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(b);S_FLIGHT::B(D)
    • K(b);S_FLIGHT::QAB1(C)
  • Tries
    • Try
      • B(D);
      • Vars
        • K(b);S_FLIGHT::B(D)
        • K(b);S_FLIGHT::QAB1(C)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • Q(C);CHECK
      • Vars
        • K(b);OGATE,S_FLIGHT,XS(B)::QAR2(C)
        • K(b);S_FLIGHT::QAB1(C)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • Q(C);CHECK
      • Vars
        • K(b);S_FLIGHT,XS(B)::B(D)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(C);
      • Vars
        • K(b);S_FLIGHT,XS(B)::QAR2(C)
        • K(b);S_FLIGHT::B(D)
      • Refutation
        • K(b);P-FLIGHT
  • Actual
    • Q(C);
    • Vars
      • K(b);S_FLIGHT,XS(B)::B(D)
      • K(b);S_FLIGHT::QAR1(C)
      • K(b);S_FLIGHT::B(D)
      • K(b);S_FLIGHT::QAB1(C)
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