MESON Chess Problem Database

Problem Display
PID: 159161 (4R3/8/2pPp3/2nkB3/pP1p2N1/7K/1N6/1Q6 w - - 0 1)

Aliovsadzade, Rauf Gadzhiaga ogli

Hlas l'udu, 1987

4R3/8/2pPp3/2nkB3/pP1p2N1/7K/1N6/1Q6

#2

8 + 6

15148 Sadier Collection 2016

SOLUTION

  • SOUND
  • Sets
    • 1...Sb3
      • 2.Qh1#
    • 1...Sd3
      • 2.Qh1#
    • 1...Se4
      • 2.Qa2#
    • 1...Sa6
      • 2.Qh1#
    • 1...Sb7
      • 2.Qh1#
    • 1...Sd7
      • 2.Qh1#
  • Tries
    • 1.Qc2?
      • 1...Sd3
        • 2.Qg2#
      • 1...d3
        • 2.Qc4#
      • 1...Sb3
        • 2.Qg2#
      • 1...Se4
        • 2.Qc4#
      • 1...Sa6
        • 2.Qg2#
      • 1...Sb7
        • 2.Qg2#
      • 1...Sd7
        • 2.Qg2#
      • 1...a3!
    • 1.Qd3?
      • threat
        • 2.Qxd4#
      • 1...Sb3
        • 2.Qf3#
      • 1...Sxd3!
    • 1.Qe1?
      • threat
        • 2.Sf6#
      • 1...Sd7
        • 2.Qh1#
      • 1...Se4!
    • 1.Qg1?
      • threat
        • 2.Qxd4#
      • 1...Sb3
        • 2.Qh1#
        • 2.Qg2#
      • 1...d3
        • 2.Qd4#
      • 1...Ke4!
  • Keys
    • 1.Qf5!
      • threat
        • 2.Sf6#
      • 1...Se4
        • 2.Qxe6#
      • 1...Sd7
        • 2.Qf3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 0
    • REMOVED MATES = 4
  • Sets
    • S(c);N_GUARD::QAB(A)
    • S(c);N_GUARD,SBLOCK::QAB(A)
  • Tries
    • Try
      • Q(A);
      • Vars
        • S(c);N_GUARD::QAB(A)
        • P(b);::QAB1(A)
        • S(c);SBLOCK::QAB1(A)
      • Refutation
        • P(a);
    • Try
      • Q(A);P_PINP(b)
      • Threat
        • QAR1(A),XP(b)
      • Vars
        • S(c);N_GUARD::QAB(A)
      • Refutation
        • S(c);N_SPINP(b),XQ(A)
    • Try
      • Q(A);
      • Threat
        • S(E)
      • Vars
        • S(c);N_GUARD::QAB(A)
      • Refutation
        • S(c);
    • Try
      • Q(A);
      • Threat
        • QAR1(A),XP(b)
      • Vars
        • P(b);::QAR1(A)
      • Refutation
        • K(d);S_FLIGHT
  • Actual
    • Q(A);
    • Threat
      • S(E)
    • Vars
      • S(c);N_GUARD,SBLOCK::QAB1(A),XP(f)
      • S(c);N_GUARD::QAB(A)
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