MESON Chess Problem Database

Problem Display
PID: 230281 (8/7K/5p2/3P1k1p/2Q2P1R/8/8/1b2nr2 w - - 0 1)

Stepanov, AS

Zadachi i Etyudi, 2000

8/7K/5p2/3P1k1p/2Q2P1R/8/8/1b2nr2

#2

5 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Rxf4
      • 2.Qxf4#
    • 1...Be4
      • 2.Qc8#
    • 1...Sc2
      • 2.Qd3#
  • Keys
    • 1.Qe2!
      • threat
        • 2.Qe6#
      • 1...Rxf4
        • 2.Rxh5#
      • 1...Be4
        • 2.Qxh5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 0
    • REMOVED MATES = 1
  • Sets
    • R(c);OGATE,XP(B)::QAR1(A),XR(c)
    • B(a);SBLOCK::QAB(A)
    • S(b);N_GUARD,S_CUTB(a)::QAB(A)
  • Actual
    • Q(A);
    • Threat
      • QAB1(A)
    • Vars
      • R(c);SBLOCK,XP(B)::R(C),XP(e)
      • B(a);SBLOCK::QAR2(A),XP(e)
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