MESON Chess Problem Database

Problem Display
PID: 153246 (2R5/5n2/8/3k1P2/2p2K1Q/8/8/8 w - - 0 1)

Aliovsadzade, Rauf Gadzhiaga ogli

Kudesnik, 2008

2R5/5n2/8/3k1P2/2p2K1Q/8/8/8

#2

4 + 3

15148 Sadier Collection 2014

SOLUTION

  • SOUND
  • Sets
    • 1...Sh6
      • 2.Qd8#
    • 1...Sd8
      • 2.Qxd8#
    • 1...Sh8
      • 2.Qd8#
  • Tries
    • 1.Qf2?
      • threat
        • 2.Qc5#
        • 2.Qd2#
      • 1...Se5
        • 2.Qc5#
      • 1...c3
        • 2.Qc5#
      • 1...Kd6!
    • 1.Qf6?
      • 1...Se5
        • 2.Qxe5#
      • 1...Sg5
        • 2.Qe5#
        • 2.Qd8#
      • 1...Sd6
        • 2.Qe5#
      • 1...Sh6
        • 2.Qe5#
        • 2.Qd8#
      • 1...Sd8
        • 2.Qe5#
        • 2.Qxd8#
      • 1...Sh8
        • 2.Qe5#
        • 2.Qd8#
      • 1...c3!
    • 1.Qe7?
      • threat
        • 2.Qc5#
      • 1...Sd6
        • 2.Qe5#
      • 1...Kd4!
  • Keys
    • 1.Qe1!
      • threat
        • 2.Qd2#
        • 2.Qd1#
      • 1...Kd4
        • 2.Qd2#
      • 1...Kd6
        • 2.Qe6#
      • 1...Se5
        • 2.Qxe5#
      • 1...c3
        • 2.Qd1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 3
  • Sets
    • S(c);N_GUARD::QAR(B)
    • S(c);N_GUARD::QAR(B),XS(c)
  • Tries
    • Try
      • Q(B);
      • Threat
        • DUALS(2)
      • Vars
        • S(c);::QAR1(B)
        • P(a);::QAR1(B)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • Q(B);
      • Vars
        • S(c);N_GUARD::QAR1(B),XS(c)
        • S(c);N_GUARD::QAR1(B)
      • Refutation
        • P(a);
    • Try
      • Q(B);
      • Threat
        • QAR1(B)
      • Vars
        • S(c);N_GUARD::QAR1(B)
      • Refutation
        • K(b);P-FLIGHT
  • Actual
    • Q(B);
    • Threat
      • DUALS(2)
    • Vars
      • K(b);P-FLIGHT::QAR2(B)
      • K(b);P-FLIGHT::QAR1(B)
      • S(c);N_GUARD::QAR1(B),XS(c)
      • P(a);::QAR(B)
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