MESON Chess Problem Database

Problem Display
PID: 175226 (4K3/N7/8/3k4/8/7Q/4PB2/8 w - - 0 1)

Polet, Ivan Pavlovich

The Times, 1902

4K3/N7/8/3k4/8/7Q/4PB2/8

#2

5 + 1

5454 Near Snap 2018
6490 yacpdb 2018

SOLUTION

  • SOUND
  • Tries
    • 1.Qf5+?
      • 1...Kd6
        • 2.Bg3#
      • 1...Kc4!
  • Keys
    • 1.Sc6!
      • 1...Kc4
        • 2.Qd3#
      • 1...Ke4
        • 2.Qf3#
      • 1...Kxc6
        • 2.Qd7#
      • 1...Kd6
        • 2.Qd7#

Anticipated by 222935(1886)

This anticipates 12144(1975), 204598(2012)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(C);CHECK
      • Vars
        • K(a);P-FLIGHT::B(B)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • S(D);
    • Vars
      • K(a);S_FLIGHT::QAB1(C)
      • K(a);S_FLIGHT,XS(D)::QAB1(C)
      • K(a);P-FLIGHT::QAR1(C)
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