MESON Chess Problem Database

Problem Display
PID: 108701 (8/N7/3B4/p7/k7/1r6/8/2KQ4 w - - 0 1)

Kowalski, S

Szachy, 1966

8/N7/3B4/p7/k7/1r6/8/2KQ4

#2

4 + 3

5454 Near Snap 2009
6490 yacpdb 2009

SOLUTION

  • SOUND
  • Keys
    • 1.Kc2!
      • 1...Rb2+
        • 2.Kxb2#
      • 1...Rc3+
        • 2.Kxc3#
      • 1...Rb4
        • 2.Qa1#
      • 1...Rb1
        • 2.Kxb1#
      • 1...Ra3
        • 2.Qg4#
        • 2.Qd4#
      • 1...Rd3
        • 2.Kxd3#
      • 1...Re3
        • 2.Qd4#
      • 1...Rf3
        • 2.Qd4#
      • 1...Rg3
        • 2.Qd4#
      • 1...Rh3
        • 2.Qg4#
        • 2.Qd4#
      • 1...Rb5
        • 2.Qa1#
      • 1...Rb6
        • 2.Qa1#
      • 1...Rb7
        • 2.Qa1#
      • 1...Rb8
        • 2.Qa1#

This anticipates 176195(1971), 15734(1987)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 12
    • REMOVED MATES = 0
  • Sets
  • Actual
    • K(A);N_PINR(a),P-FLIGHT
    • Vars
      • R(a);CHECK::QAB(B)+K(A),XR(a)
      • R(a);N_GUARD::QAR(B)
      • R(a);::QAB(B)+K(A),XR(a)
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