MESON Chess Problem Database

Problem Display
PID: 263310 (2q3n1/6Q1/6R1/4N3/R2Npp1p/4k2p/2p4K/2n1B3 w - - 0 1)

Makaronets, Leonid

Szachy, 1973

2q3n1/6Q1/6R1/4N3/R2Npp1p/4k2p/2p4K/2n1B3

#2

7 + 9

6490 yacpdb 2022

SOLUTION

  • SOUND
  • Tries
    • 1.Rg2?
      • threat
        • 2.Bd2#
      • 1...Qc4
        • 2.Sf5#
      • 1...Qc3
        • 2.Sf5#
      • 1...Se2
        • 2.Rxe2#
      • 1...Sb3
        • 2.Re2#
      • 1...hxg2!
    • 1.Rc6?
      • threat
        • 2.Qg1#
      • 1...f3
        • 2.Qg5#
      • 1...Se2
        • 2.Sxc2#
      • 1...Sd3
        • 2.Sc4#
      • 1...Qg4!
  • Keys
    • 1.Re6!
      • threat
        • 2.Qg1#
      • 1...f3
        • 2.Qg5#
      • 1...Se2
        • 2.Sf5#
      • 1...Sd3
        • 2.Sg4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(F);
      • Threat
        • B(A)
      • Vars
        • Q(h);N_GUARD::S(D)
        • S(a);N_GUARD::R1(F),XS(a)
        • S(a);N_GUARD::R1(F)
      • Refutation
        • P(d);XR(F)
    • Try
      • R(F);
      • Threat
        • QAB(G)
      • Vars
        • P(f);OGATEB::QAB(G)
        • S(a);SBLOCK::S(D),XP(b)
        • S(a);SBLOCK::S(E)
      • Refutation
        • Q(h);
  • Actual
    • R(F);
    • Threat
      • QAB(G)
    • Vars
      • P(f);OGATEB::QAB(G)
      • S(a);SBLOCK::S(D)
      • S(a);SBLOCK::S(E)
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