MESON Chess Problem Database

Problem Display
PID: 245444 (8/8/8/8/2Q3K1/3N4/2p5/2NkB3 w - - 0 1)

Pankratiev, Aleksandr Nikolaevich

Kudesnik, 2010

8/8/8/8/2Q3K1/3N4/2p5/2NkB3

#2

5 + 2

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Sb2+?
      • 1...Kxe1
        • 2.Qe2#
      • 1...Kxc1!
    • 1.Sf2+?
      • 1...Kxe1
        • 2.Qe2#
      • 1...Kxc1!
    • 1.Sf4?
      • 1...Kxe1
        • 2.Qe2#
      • 1...Kxc1!
    • 1.Sc5?
      • 1...Kxe1
        • 2.Qe2#
      • 1...Kxc1!
    • 1.Se5?
      • 1...Kxe1
        • 2.Qe2#
      • 1...Kxc1!
  • Keys
    • 1.Sb4!
      • 1...Kxc1
        • 2.Qxc2#
      • 1...Kxe1
        • 2.Qe2#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(C);CHECK
      • Vars
        • K(a);P-FLIGHT,XB(B)::QAR1(D)
      • Refutation
        • K(a);P-FLIGHT,P_SPINP(b),XS(A)
    • Try
      • S(C);CHECK
      • Vars
        • K(a);P-FLIGHT,XB(B)::QAR1(D)
      • Refutation
        • K(a);P-FLIGHT,P_SPINP(b),XS(A)
    • Try
      • S(C);
      • Vars
        • K(a);P-FLIGHT,XB(B)::QAR1(D)
      • Refutation
        • K(a);P-FLIGHT,P_SPINP(b),XS(A)
    • Try
      • S(C);
      • Vars
        • K(a);P-FLIGHT,XB(B)::QAR1(D)
      • Refutation
        • K(a);P-FLIGHT,P_SPINP(b),XS(A)
    • Try
      • S(C);
      • Vars
        • K(a);P-FLIGHT,XB(B)::QAR1(D)
      • Refutation
        • K(a);P-FLIGHT,P_SPINP(b),XS(A)
  • Actual
    • S(C);
    • Vars
      • K(a);P-FLIGHT,P_SPINP(b),XS(A)::QAR1(D),XP(b)
      • K(a);P-FLIGHT,XB(B)::QAR1(D)
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