MESON Chess Problem Database

Problem Display
PID: 239986 (6Q1/5p2/7p/4P1Pp/4K1P1/5NkP/p4p1b/5B2 w - - 0 1)

Lipton, Michael

7th Comm., Sinfonie Scacchistiche 50 JT, 2015-2017

6Q1/5p2/7p/4P1Pp/4K1P1/5NkP/p4p1b/5B2

#2

8 + 7

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Sd4?
      • threat
        • 2.Sf5#
      • 1...f5+
        • 2.Sxf5#
      • 1...Kh4
        • 2.Sf5#
      • 1...Bg1!
    • 1.gxh6?
      • threat
        • 2.gxh5#
      • 1...f5+
        • 2.gxf5#
      • 1...hxg4
        • 2.Qxg4#
      • 1...h4!
  • Keys
    • 1.gxh5!
      • threat
        • 2.gxh6#
      • 1...f5+
        • 2.gxf5 ep#
      • 1...hxg5
        • 2.Qxg5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(B);
      • Threat
        • S(B)
      • Vars
        • P(g);CHECK::S(B),XP(g)
        • K(d);S_FLIGHT::S(B)
      • Refutation
        • B(c);
    • Try
      • P(G);XP(f)
      • Threat
        • QAR(H)+P(E),XP(e)
      • Vars
        • P(g);CHECK,OGATE::QAR(H)+P(E),XP(g)
        • P(e);OGATE,P_SPINP(e),XP(E)::QAR1(H),XP(e)
      • Refutation
        • P(e);
  • Actual
    • P(E);XP(e)
    • Threat
      • QAR(H)+P(G),XP(f)
    • Vars
      • P(g);CHECK,OGATE::QAR(H)+P(G),XP(g),EP
      • P(f);OGATE,P_SPINP(f),XP(G)::QAR2(H),XP(f)
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