MESON Chess Problem Database

Problem Display
PID: 245443 (8/8/8/4K3/3Q4/6N1/6pk/6RN w - - 0 1)

Pankratiev, Aleksandr Nikolaevich

Kudesnik, 2006

8/8/8/4K3/3Q4/6N1/6pk/6RN

#2

5 + 2

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Qe3?
      • 1...gxh1Q
        • 2.Sf1#
      • 1...gxh1S
        • 2.Sf1#
      • 1...gxh1B
        • 2.Sf1#
      • 1...gxh1R
        • 2.Sf1#
      • 1...Kh3!
    • 1.Qg4?
      • 1...gxh1Q
        • 2.Sf1#
      • 1...gxh1S
        • 2.Sf1#
      • 1...gxh1B
        • 2.Sf1#
      • 1...gxh1R
        • 2.Sf1#
      • 1...Kxg1!
  • Keys
    • 1.Sf2!
      • 1...Kxg1
        • 2.Sg4#
      • 1...Kxg3
        • 2.Qf4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(D);
      • Vars
        • P(a);N_GUARD,XS(B)::S(C)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • Q(D);
      • Vars
        • P(a);N_GUARD,XS(B)::S(C)
      • Refutation
        • K(b);S_FLIGHT,XR(A)
  • Actual
    • S(B);
    • Vars
      • K(b);S_FLIGHT,XR(A)::QAB(D)+S(B)
      • K(b);OGATEB,P_SPINP(a),S_FLIGHT,XS(C)::QAB1(D)
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