MESON Chess Problem Database

Problem Display
PID: 82486 (Q7/1R2B2K/8/2p5/3n2P1/7k/5R2/8 w - - 0 1)

Havel, Miroslav

Narodni osvobozeni, 1936

Q7/1R2B2K/8/2p5/3n2P1/7k/5R2/8

#2

6 + 3

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Rb3+?
      • 1...Sxb3
        • 2.Qg2#
        • 2.Qf3#
      • 1...Sf3
        • 2.Qxf3#
      • 1...Kxg4!
  • Keys
    • 1.Rb4!
      • threat
        • 2.Qg2#
      • 1...Kg3
        • 2.Qg2#
      • 1...Kxg4
        • 2.Qf3#
      • 1...Sc6
        • 2.Qa3#
      • 1...Sf3
        • 2.Qxf3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(C);CHECK
      • Vars
        • S(b);N_GUARD,P_SPINS(b)::QAR2(F),XS(b)
      • Refutation
        • K(a);S_FLIGHT,XP(B)
  • Actual
    • R(C);
    • Threat
      • QAB1(F)
    • Vars
      • K(a);P-FLIGHT::QAR1(F)
      • K(a);P_SPINS(b),S_FLIGHT,XP(B)::QAB1(F)
      • S(b);N_GUARD::QAB1(F)
      • S(b);N_GUARD::QAR2(F),XS(b)
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