MESON Chess Problem Database

Problem Display
PID: 238848 (5b1q/4p3/6P1/3pPQ2/1P1kP1p1/2R3Np/1B6/K5n1 w - - 0 1)

Makaronets, Leonid

L'Italia Scacchistica, 1996

5b1q/4p3/6P1/3pPQ2/1P1kP1p1/2R3Np/1B6/K5n1

#2

9 + 8

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Qxe5
      • 2.Qf2#
    • 1...Se2
      • 2.Sxe2#
    • 1...Sf3
      • 2.Se2#
    • 1...dxe4
      • 2.Qxe4#
  • Tries
    • 1.Qe6?
      • threat
        • 2.Qxd5#
      • 1...Qxe5
        • 2.Qb6#
      • 1...dxe4
        • 2.Sf5#
        • 2.Ra3#
        • 2.Rb3#
        • 2.Rf3#
      • 1...Qg8!
    • 1.e6?
      • threat
        • 2.Qxd5#
      • 1...dxe4
        • 2.Qxe4#
        • 2.Qc5#
      • 1...Qe5
        • 2.Qf2#
      • 1...Qh5!
  • Keys
    • 1.exd5!
      • threat
        • 2.Qe4#
      • 1...Kxd5
        • 2.Rc5#
      • 1...Qxe5
        • 2.Qd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 3
  • Sets
    • Q(h);SBLOCK,XP(G)::QAB(H)
    • S(a);N_GUARD::S(D),XS(a)
    • S(a);N_GUARD::S(D)
    • P(e);OGATE,XP(F)::QAR1(H),XP(e)
  • Tries
    • Try
      • Q(H);
      • Threat
        • QAR1(H),XP(e)
      • Vars
        • Q(h);SBLOCK,XP(G)::QAB(H)
      • Refutation
        • Q(h);
    • Try
      • P(G);
      • Threat
        • QAR1(H),XP(e)
      • Vars
        • Q(h);SBLOCK::QAB(H)
      • Refutation
        • Q(h);
  • Actual
    • P(F);XP(e)
    • Threat
      • QAR1(H)
    • Vars
      • K(c);P-FLIGHT,XP(F)::R1(C)
      • Q(h);SBLOCK,XP(G)::QAR1(H)
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