MESON Chess Problem Database

Problem Display
PID: 46411 (8/4KQ1n/8/6kp/8/8/7R/5B2 w - - 0 1)

Velikhanov, Kenan

StrateGems, 2003

8/4KQ1n/8/6kp/8/8/7R/5B2

#2

4 + 3

SOLUTION

  • SOUND
  • Sets
    • 1...Kh6
      • 2.Rxh5#
  • Tries
    • 1.Be2?
      • threat
        • 2.Rxh5#
      • 1...Kh6
        • 2.Rxh5#
      • 1...Sf6
        • 2.Qxf6#
      • 1...h4!
    • 1.Rg2+?
      • 1...Kh6
        • 2.Rg6#
        • 2.Qg6#
        • 2.Qg7#
      • 1...Kh4!
  • Keys
    • 1.Rh4!
      • threat
        • 2.Qxh5#
      • 1...Kxh4
        • 2.Qf4#
      • 1...Kh6
        • 2.Rxh5#
      • 1...Sf6
        • 2.Qxf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(a);P_SPINP(b),S_FLIGHT::R1(B),XP(b)
  • Tries
    • Try
      • B(A);
      • Threat
        • R1(B),XP(b)
      • Vars
        • K(a);P_SPINP(b),S_FLIGHT::R1(B),XP(b)
        • S(c);N_GUARD::QAB1(D),XS(c)
      • Refutation
        • P(b);
    • Try
      • R(B);CHECK
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • R(B);
    • Threat
      • QAR1(D),XP(b)
    • Vars
      • K(a);S_FLIGHT,XR(B)::QAR2(D)
      • K(a);P_SPINP(b),S_FLIGHT::R1(B),XP(b)
      • S(c);N_GUARD::QAB1(D),XS(c)
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