MESON Chess Problem Database

Problem Display
PID: 258338 (4R3/8/N1pkP3/3p3Q/3p4/3P4/2P4K/6B1 w - - 0 1)

Aliovsadzade, Rauf Gadzhiaga ogli

Problemas, 2022

4R3/8/N1pkP3/3p3Q/3p4/3P4/2P4K/6B1

#2

8 + 4

SOLUTION

  • SOUND
  • Tries
    • 1.Qf7?
      • threat
        • 2.Qf4#
        • 2.Qc7#
      • 1...c5
        • 2.Qc7#
      • 1...Ke5!
    • 1.c3?
      • 1...dxc3
        • 2.Bc5#
      • 1...c5!
  • Keys
    • 1.c4!
      • threat
        • 2.c5#
      • 1...dxc4
        • 2.Qc5#
      • 1...dxc4 ep
        • 2.Bc5#
      • 1...c5
        • 2.Qxd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(E);
      • Threat
        • DUALS(2)
      • Vars
        • P(c);::QAB1(E)
      • Refutation
        • K(d);S_FLIGHT
    • Try
      • P(B);
      • Vars
        • P(a);OGATE,XP(B)::B(A)
      • Refutation
        • P(c);
  • Actual
    • P(B);
    • Threat
      • P(B)
    • Vars
      • P(b);OGATE,XP(B)::QAB1(E)
      • P(a);EP,OGATE,XP(B)::B(A)
      • P(c);N_GUARD::QAR1(E),XP(b)
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