MESON Chess Problem Database

Problem Display
PID: 243267 (8/2K5/4P2R/2pkp3/8/1p1P4/3QN1n1/8 w - - 0 1)

Aliovsadzade, Rauf Gadzhiaga ogli

Mat, 1976

8/2K5/4P2R/2pkp3/8/1p1P4/3QN1n1/8

#2

6 + 5

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...c4
      • 2.Qa5#
    • 1...e4
      • 2.Qg5#
  • Tries
    • 1.Qc1?
      • threat
        • 2.Qc4#
      • 1...c4
        • 2.Qxc4#
      • 1...e4
        • 2.Qg5#
      • 1...Se3!
    • 1.Qe3?
      • threat
        • 2.Sc3#
        • 2.Qe4#
      • 1...e4
        • 2.Qg5#
        • 2.Qxe4#
      • 1...c4
        • 2.Sc3#
      • 1...Sxe3!
    • 1.Qb4?
      • threat
        • 2.Sc3#
        • 2.Qc4#
        • 2.Qe4#
        • 2.Qb7#
      • 1...e4
        • 2.Qxe4#
      • 1...Se3
        • 2.Sc3#
        • 2.Qe4#
        • 2.Qb7#
      • 1...c4
        • 2.Qa5#
        • 2.Qd6#
        • 2.Qxc4#
        • 2.Qb5#
      • 1...cxb4!
  • Keys
    • 1.e7!
      • threat
        • 2.Rd6#
      • 1...c4
        • 2.Qa5#
      • 1...e4
        • 2.Qg5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • P(c);OGATEB::QAR(A)
    • P(e);OGATEB::QAR(A)
  • Tries
    • Try
      • Q(A);
      • Threat
        • QAB1(A)
      • Vars
        • P(c);::QAB1(A),XP(c)
        • P(e);OGATEB::QAR(A)
      • Refutation
        • S(a);
    • Try
      • Q(A);
      • Threat
        • DUALS(2)
      • Vars
        • P(c);::S(B)
      • Refutation
        • S(a);XQ(A)
    • Try
      • Q(A);
      • Threat
        • DUALS(4)
      • Vars
        • P(e);::QAB1(A),XP(e)
      • Refutation
        • P(c);XQ(A)
  • Actual
    • P(D);
    • Threat
      • R1(E)
    • Vars
      • P(c);OGATEB::QAR(A)
      • P(e);OGATEB::QAR(A)
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