MESON Chess Problem Database

Problem Display
PID: 160329 (8/1pQ5/8/2pN4/3kBK2/8/8/8 w - - 0 1)

Abdullayev, Elmar

Sem Shakhmatnikh not, 2016

8/1pQ5/8/2pN4/3kBK2/8/8/8

#2

4 + 3

15148 Sadier Collection 2017
5454 Near Snap 2018

SOLUTION

  • SOUND
  • Sets
    • 1...c4
      • 2.Qb6#
  • Tries
    • 1.Se3?
      • threat
        • 2.Qe5#
        • 2.Qg7#
      • 1...c4
        • 2.Qe5#
        • 2.Qxc4#
      • 1...Kc3!
    • 1.Sb6?
      • threat
        • 2.Qe5#
        • 2.Qg7#
      • 1...c4
        • 2.Qe5#
        • 2.Qxc4#
      • 1...Kc3!
    • 1.Qxb7?
      • 1...c4
        • 2.Qb6#
        • 2.Qa7#
      • 1...Kc4!
  • Keys
    • 1.Qa5!
      • threat
        • 2.Qc3#
      • 1...Kc4
        • 2.Qa4#
      • 1...c4
        • 2.Qb6#

Anticipated by 176185(1967)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • P(b);OGATEB,SBLOCK::QAB(D)
  • Tries
    • Try
      • S(C);
      • Threat
        • DUALS(2)
      • Refutation
        • K(a);P_SPINP(b),S_FLIGHT
    • Try
      • S(C);
      • Threat
        • DUALS(2)
      • Refutation
        • K(a);P_SPINP(b),S_FLIGHT
    • Try
      • Q(D);XP(c)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • Q(D);
    • Threat
      • QAB1(D)
    • Vars
      • K(a);P-FLIGHT::QAR2(D)
      • P(b);OGATEB,SBLOCK::QAB(D)
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