MESON Chess Problem Database

Problem Display
PID: 94587 (8/1NK5/2p5/8/1kP5/1P6/1Q6/8 w - - 0 1)

Kirillov, Valery Afanasievich

Kovalev, Sergey Valentinovich

Vecherni Magadan, 1997

8/1NK5/2p5/8/1kP5/1P6/1Q6/8

#2

5 + 2

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Sc5?
      • 1...Ka5
        • 2.Qa3#
        • 2.Qc3#
        • 2.Qd2#
        • 2.b4#
      • 1...Kxc5!
    • 1.Sd6?
      • 1...Ka5
        • 2.Qa3#
      • 1...Kc5
        • 2.b4#
      • 1...c5!
    • 1.Sd8?
      • 1...Ka5
        • 2.Qa3#
      • 1...c5
        • 2.Sc6#
      • 1...Kc5!
  • Keys
    • 1.Sa5!
      • 1...Kxa5
        • 2.Qa3#
      • 1...Kc5
        • 2.b4#
      • 1...c5
        • 2.Sc6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(D);
      • Refutation
        • K(a);S_FLIGHT,XS(D)
    • Try
      • S(D);
      • Vars
        • K(a);S_FLIGHT::QAR2(A)
        • K(a);OGATE,S_FLIGHT::P(B)
      • Refutation
        • P(b);
    • Try
      • S(D);
      • Vars
        • K(a);S_FLIGHT::QAR2(A)
        • P(b);SBLOCK::S(D)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • S(D);
    • Vars
      • K(a);S_FLIGHT,XS(D)::QAR2(A)
      • K(a);OGATE,S_FLIGHT::P(B)
      • P(b);SBLOCK::S(D)
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