MESON Chess Problem Database

Problem Display
PID: 161974 (5Q2/5N2/B1p3q1/1n2rb2/1N2k1n1/2P1p3/4P2B/K7 w - - 0 1)

Alecu, Petre

Revista Romana de Sah, 1979

5Q2/5N2/B1p3q1/1n2rb2/1N2k1n1/2P1p3/4P2B/K7

#2

8 + 8

15148 Sadier Collection 2017

SOLUTION

  • SOUND
  • Sets
    • 1...Qh7
      • 2.Sg5#
    • 1...Qg5
      • 2.Sxg5#
    • 1...Qd6
      • 2.Sg5#
    • 1...Qe6
      • 2.Sg5#
    • 1...Sa3
      • 2.Bd3#
    • 1...Sd4
      • 2.Bd3#
    • 1...Sd6
      • 2.Bd3#
    • 1...Sa7
      • 2.Bd3#
    • 1...Sc7
      • 2.Bd3#
  • Tries
    • 1.Sd6+?
      • 1...Sxd6
        • 2.Bd3#
      • 1...Qxd6!
  • Keys
    • 1.Qd6!
      • threat
        • 2.Qd3#
      • 1...Qxd6
        • 2.Sg5#
      • 1...Sxh2
        • 2.Qxe5#
      • 1...Sxd6
        • 2.Bd3#
      • 1...Rd5
        • 2.Qf4#
      • 1...Sf2
        • 2.Qxe5#
      • 1...Sd4
        • 2.Bd3#
        • 2.Qxd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 7
  • Sets
    • Q(h);N_GUARD::S(G)
    • Q(h);N_GUARD::S(G),XQ(h)
    • S(d);OGATE::B(F)
  • Tries
    • Try
      • S(G);CHECK
      • Vars
        • S(d);OGATE,XS(G)::B(F)
      • Refutation
        • Q(h);XS(G)
  • Actual
    • Q(H);
    • Threat
      • QAB1(H)
    • Vars
      • Q(h);N_GUARD,XQ(H)::S(G)
      • S(c);N_GUARD,XB(C)::QAR1(H),XR(e)
      • S(d);OGATE,XQ(H)::B(F)
      • R(e);OGATE::QAR1(H)
      • S(c);N_GUARD::QAR1(H),XR(e)
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