MESON Chess Problem Database

Problem Display
PID: 266587 (8/N7/8/P7/1kp5/4K3/Q3N3/8 w - - 0 1)

Klipachev, Vladimir Panteleevich

Zadachi i Etyudi, 2011

8/N7/8/P7/1kp5/4K3/Q3N3/8

#2

5 + 2

SOLUTION

  • SOUND
  • Tries
    • 1.Ke4?
      • 1...Kc5
        • 2.Qa3#
      • 1...c3!
    • 1.Sc1?
      • 1...Kc3
        • 2.Qd2#
      • 1...c3
        • 2.Sd3#
      • 1...Kc5!
    • 1.Sc3?
      • 1...Kc5
        • 2.Qa3#
      • 1...Kxc3!
  • Keys
    • 1.Sf4!
      • 1...Kc3
        • 2.Sd5#
      • 1...Kc5
        • 2.Qa3#
      • 1...c3
        • 2.Sd3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(C);P-FLIGHT
      • Vars
        • K(a);N_GUARD,S_FLIGHT::QAB(A)
      • Refutation
        • P(b);
    • Try
      • S(B);
      • Vars
        • K(a);N_GUARD,S_CUTP(b),S_FLIGHT::QAB1(A)
        • P(b);N_GUARD,SBLOCK::S(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(B);
      • Vars
        • K(a);N_GUARD,S_FLIGHT::QAB(A)
      • Refutation
        • K(a);S_FLIGHT,XS(B)
  • Actual
    • S(B);
    • Vars
      • K(a);N_GUARD,S_FLIGHT::S(B)
      • K(a);N_GUARD,S_FLIGHT::QAB(A)
      • P(b);N_GUARD,SBLOCK::S(B)
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