MESON Chess Problem Database

Problem Display
PID: 178231 (8/8/3KN3/8/2p1k3/7Q/3P4/8 w - - 0 1)

Karmil, Ferhat (= Kakabadze, Ferad)

Vratnica-64, 2007

8/8/3KN3/8/2p1k3/7Q/3P4/8

#2

4 + 2

5454 Near Snap 2018
6490 yacpdb 2018
3713 Snap 2022

SOLUTION

  • SOUND
  • Sets
    • 1...c3
      • 2.d3#
  • Tries
    • 1.Sc5+?
      • 1...Kd4
        • 2.Qg4#
        • 2.Qc3#
        • 2.Qe3#
        • 2.Qh4#
        • 2.Qh8#
      • 1...Kf4!
    • 1.Sg5+?
      • 1...Kd4
        • 2.Qc3#
        • 2.Qe3#
      • 1...Kf4!
    • 1.Sg7?
      • threat
        • 2.Qe3#
      • 1...Kd4
        • 2.Qe3#
      • 1...Kf4!
  • Keys
    • 1.Sd4!
      • threat
        • 2.Qe3#
      • 1...Kxd4
        • 2.Qe3#
      • 1...Kf4
        • 2.Qh4#

Anticipated by 121001(0000), 21487(1919), 15306(1982)

This anticipates 262175(2008)

FEATURES

  • Static
    • TYPE = BLOCK_THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • P(a);N_GUARD::P(A)
  • Tries
    • Try
      • S(D);CHECK
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • S(D);CHECK
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • S(D);
      • Threat
        • QAR1(B)
      • Vars
        • K(b);P-FLIGHT::QAB1(B)
      • Refutation
        • K(b);P-FLIGHT
  • Actual
    • S(D);
    • Threat
      • QAR1(B)
    • Vars
      • K(b);P-FLIGHT,XS(D)::QAB1(B)
      • K(b);P-FLIGHT::QAR2(B)
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