MESON Chess Problem Database

Problem Display
PID: 80840 (8/8/2p2P2/k2N2Q1/8/1KN5/8/8 w - - 0 1)

Aliovsadzade, Rauf Gadzhiaga ogli

Azerbaijan CCC, 1992

8/8/2p2P2/k2N2Q1/8/1KN5/8/8

#2

5 + 2

5454 Near Snap 2018

SOLUTION

  • SOUND
  • Tries
    • 1.Sb4+?
      • 1...c5
        • 2.Qxc5#
      • 1...Kb6!
    • 1.Sc7+?
      • 1...c5
        • 2.Qxc5#
      • 1...Kb6!
    • 1.Qe3?
      • threat
        • 2.Qb6#
        • 2.Qa7#
      • 1...Ka6
        • 2.Qb6#
      • 1...cxd5
        • 2.Qa7#
      • 1...c5!
    • 1.Qg8?
      • threat
        • 2.Qa8#
      • 1...Ka6
        • 2.Qa8#
      • 1...cxd5!
  • Keys
    • 1.Qg1!
      • threat
        • 2.Qb6#
        • 2.Qa7#
        • 2.Qa1#
      • 1...Ka6
        • 2.Qb6#
      • 1...cxd5
        • 2.Qa7#
      • 1...c5
        • 2.Qa1#

This anticipates 183760(2014)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(C);CHECK
      • Vars
        • P(b);P_SPINP(b)::QAR2(D),XP(b)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(C);CHECK
      • Vars
        • P(b);P_SPINP(b)::QAR2(D),XP(b)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(D);
      • Threat
        • DUALS(2)
      • Vars
        • K(a);P-FLIGHT::QAR1(D)
        • P(b);XS(C)::QAR2(D)
      • Refutation
        • P(b);
    • Try
      • Q(D);
      • Threat
        • QAR(D)
      • Vars
        • K(a);P-FLIGHT::QAR2(D)
      • Refutation
        • P(b);XS(C)
  • Actual
    • Q(D);
    • Threat
      • DUALS(3)
    • Vars
      • K(a);P-FLIGHT::QAR1(D)
      • P(b);XS(C)::QAR2(D)
      • P(b);::QAR(D)
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