MESON Chess Problem Database

Problem Display
PID: 268084 (8/4p2q/7p/7R/4QNkn/3R4/5K2/5n1b w - - 0 1)

Subotic, Miroslav

The Problemist, 1999

8/4p2q/7p/7R/4QNkn/3R4/5K2/5n1b

#2

5 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Sd2
      • 2.Rg3#
    • 1...Sh2
      • 2.Rg3#
    • 1...Sg3
      • 2.Rxg3#
    • 1...Sg2
      • 2.Qf3#
    • 1...Sg6
      • 2.Qf5#
  • Keys
    • 1.Rh3!
      • threat
        • 2.R3xh4#
      • 1...Sg2
        • 2.Qf3#
      • 1...Sf3
        • 2.Sg6#
      • 1...Sf5
        • 2.Sg2#
      • 1...Sg6
        • 2.Qf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 3
  • Sets
    • S(a);N_GUARD::R1(B)
    • S(a);N_GUARD::R1(B),XS(a)
    • S(d);N_GUARD,S_CUTB(b)::QAB1(C)
    • S(d);N_GUARD,S_CUTQ(g)::QAB1(C)
  • Actual
    • R(B);
    • Threat
      • R1(B),XS(d)
    • Vars
      • S(d);N_GUARD,S_CUTB(b)::QAB1(C)
      • S(d);S_CUTB(b)::QAR(C)+S(D)
      • S(d);S_CUTQ(g)::QAR(C)+S(D)
      • S(d);N_GUARD,S_CUTQ(g)::QAB1(C)
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