MESON Chess Problem Database

Problem Display
PID: 158143 (8/3Q4/b2nN1r1/b1RN1r2/1pp1kPP1/8/3PP3/BK6 w - - 0 1)

Archakov, Vladimir Mikhailovich

Dunaujvarosi Hirlap, 1962

8/3Q4/b2nN1r1/b1RN1r2/1pp1kPP1/8/3PP3/BK6

#2

10 + 8

15148 Sadier Collection 2016

SOLUTION

  • SOUND
  • Tries
    • 1.Sf6+?
      • 1...Rfxf6
        • 2.Re5#
        • 2.Qc6#
      • 1...Rgxf6!
    • 1.Rxc4+?
      • 1...Kxd5
        • 2.Rd4#
      • 1...Sxc4
        • 2.Sc5#
        • 2.d3#
      • 1...Bxc4!
    • 1.Qa4?
      • threat
        • 2.Qc2#
      • 1...b3
        • 2.d3#
      • 1...c3
        • 2.Sxc3#
      • 1...Rxd5!
    • 1.Qc6?
      • threat
        • 2.Sc3#
        • 2.Sf6#
      • 1...Rxd5
        • 2.Qxd5#
      • 1...Rff6
        • 2.Sc3#
        • 2.Se3#
        • 2.Sxb4#
        • 2.Sb6#
        • 2.Sxf6#
        • 2.Sdc7#
        • 2.Se7#
      • 1...Rgf6
        • 2.Sc3#
        • 2.Sxf6#
      • 1...c3
        • 2.Sxc3#
        • 2.Sf6#
      • 1...Rxe6!
  • Keys
    • 1.Qh7!
      • threat
        • 2.Qh1#
      • 1...Rxf4
        • 2.Sg5#
      • 1...Rxg4
        • 2.Sf6#
      • 1...Rh5
        • 2.Sf6#
      • 1...Rh6
        • 2.Sg5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(H);CHECK
      • Refutation
        • R(h);XS(H)
    • Try
      • R(G);CHECK,XP(b)
      • Vars
        • K(c);P_SPINS(g),S_FLIGHT,XS(H)::R1(G)
      • Refutation
        • B(f);XR(G)
    • Try
      • Q(J);
      • Threat
        • QAB(J)
      • Vars
        • P(a);P_SPINP(b)::P(C)
        • P(b);P_SPINP(a)::S(H),XP(b)
      • Refutation
        • R(e);XS(H)
    • Try
      • Q(J);
      • Threat
        • DUALS(2)
      • Vars
        • R(e);OGATE,P_SPINR(e),XS(H)::QAB1(J),XR(e)
      • Refutation
        • R(h);XS(I)
  • Actual
    • Q(J);
    • Threat
      • QAB(J)
    • Vars
      • R(e);N_GUARD,P_SPINR(h),XP(E)::S(I)
      • R(h);N_GUARD,P_SPINR(e),XP(F)::S(H)
      • R(e);N_GUARD,P_SPINR(h)::S(H)
      • R(h);N_GUARD,P_SPINR(e)::S(I)
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