MESON Chess Problem Database

Problem Display
PID: 121115 (8/8/1P6/Pk6/8/8/RKNPP3/1Q4BB w - - 0 1)

Niemeijer, Meindert

Inspanning en Ontspanning, 1969

8/8/1P6/Pk6/8/8/RKNPP3/1Q4BB

#2

10 + 1

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Ka1+?
      • 1...Kc4
        • 2.Sa3#
        • 2.Ra4#
        • 2.Qb4#
      • 1...Ka6!
    • 1.Kc1+?
      • 1...Kc4
        • 2.Sa3#
        • 2.Ra4#
        • 2.Qb4#
      • 1...Ka6!
    • 1.Bc6+?
      • 1...Kc4
        • 2.Ra4#
        • 2.d3#
      • 1...Ka6
        • 2.Sb4#
      • 1...Kxc6!
  • Keys
    • 1.Qf1!
      • 1...Kc4
        • 2.e4#
      • 1...Ka6
        • 2.e3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(E);CHECK,S_FLIGHT
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • K(E);CHECK,S_FLIGHT
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(C);CHECK
      • Vars
        • K(a);S_FLIGHT::S(F)
      • Refutation
        • K(a);S_FLIGHT,XB(C)
  • Actual
    • Q(A);
    • Vars
      • K(a);S_FLIGHT::QAB(A)+P(H)
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