MESON Chess Problem Database

Problem Display
PID: 234095 (8/3p4/3Q3N/2P5/8/4PPN1/3P2k1/4K2R w - - 0 1)

Benko, Pal Charles

Chess Life & Review, 1976

8/3p4/3Q3N/2P5/8/4PPN1/3P2k1/4K2R

#2

9 + 2

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Se2?
      • 1...Kxf3
        • 2.Qd5#
      • 1...Kxh1!
    • 1.Sgf5?
      • 1...Kxf3
        • 2.Qd5#
      • 1...Kxh1!
    • 1.Sh5?
      • 1...Kxf3
        • 2.Qd5#
      • 1...Kxh1!
    • 1.Rh2+?
      • 1...Kg1
        • 2.Se2#
      • 1...Kxf3
        • 2.Rf2#
        • 2.Qf4#
      • 1...Kxh2!
    • 1.Qxd7?
      • 1...Kxg3
        • 2.Qh3#
        • 2.Qg4#
      • 1...Kxf3!
  • Keys
    • 1.Sf1!
      • 1...Kxh1
        • 2.Qh2#
      • 1...Kxf3
        • 2.Qd5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(F);
      • Vars
        • K(a);OGATEB,S_FLIGHT,XP(E)::QAB(H)
      • Refutation
        • K(a);S_FLIGHT,XR(B)
    • Try
      • S(F);
      • Vars
        • K(a);OGATEB,S_FLIGHT,XP(E)::QAB(H)
      • Refutation
        • K(a);S_FLIGHT,XR(B)
    • Try
      • S(F);
      • Vars
        • K(a);OGATEB,S_FLIGHT,XP(E)::QAB(H)
      • Refutation
        • K(a);S_FLIGHT,XR(B)
    • Try
      • R(B);CHECK
      • Vars
        • K(a);P-FLIGHT::S(F)
      • Refutation
        • K(a);P-FLIGHT,XR(B)
    • Try
      • Q(H);XP(b)
      • Refutation
        • K(a);S_FLIGHT,XP(E)
  • Actual
    • S(F);
    • Vars
      • K(a);S_FLIGHT,XR(B)::QAR1(H)
      • K(a);OGATEB,S_FLIGHT,XP(E)::QAB(H)
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