MESON Chess Problem Database

Problem Display
PID: 221346 (6N1/2K5/8/3k2N1/5p2/8/2P5/6Q1 w - - 0 1)

Tyunin, Aleksandr Dmitrevich

SuperProblem, 2019

6N1/2K5/8/3k2N1/5p2/8/2P5/6Q1

#2

5 + 2

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Ke5
      • 2.Qc5#
  • Tries
    • 1.Se7+?
      • 1...Ke5
        • 2.Qa1#
      • 1...Kc4!
    • 1.c3?
      • threat
        • 2.Qd4#
      • 1...Ke5
        • 2.Qc5#
      • 1...Kc4!
    • 1.c4+?
      • 1...Ke5
        • 2.Qc5#
      • 1...Kxc4!
  • Keys
    • 1.Kb6!
      • threat
        • 2.Qc5#
      • 1...Kc4
        • 2.Qc5#
      • 1...Ke5
        • 2.Qc5#
      • 1...Kd6
        • 2.Qd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(b);P-FLIGHT::QAR2(A)
  • Tries
    • Try
      • S(E);CHECK
      • Vars
        • K(b);P-FLIGHT::QAB(A)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • P(B);
      • Threat
        • QAR1(A)
      • Vars
        • K(b);P-FLIGHT::QAR2(A)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • P(B);CHECK
      • Vars
        • K(b);P-FLIGHT::QAR2(A)
      • Refutation
        • K(b);S_FLIGHT,XP(B)
  • Actual
    • K(D);S_FLIGHT
    • Threat
      • QAR1(A)
    • Vars
      • K(b);S_FLIGHT::QAR1(A)
      • K(b);P-FLIGHT::QAR2(A)
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