MESON Chess Problem Database

Problem Display
PID: 251189 (1K2b3/7B/8/5Q2/2pB4/1P1R4/2k1NN1r/8 w - - 0 1)

Kovacevic, Marjan

1st Prize, Uralski Problemist-20 JT, 2013

1K2b3/7B/8/5Q2/2pB4/1P1R4/2k1NN1r/8

#2

8 + 4

15601 Albrecht-Leiss-Degener Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Kb1
      • 2.Rd2#
    • 1...cxb3
      • 2.Rd1#
    • 1...cxd3
      • 2.Qxd3#
  • Keys
    • 1.Qa5!
      • threat
        • 2.Qa2#
      • 1...Kb1
        • 2.Rd1#
      • 1...cxb3
        • 2.Rd2#
      • 1...Ba4
        • 2.Rh3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • K(a);N_GUARD,S_FLIGHT::QAB(F)+R(D)
    • P(c);SBLOCK,XP(C)::QAB(F)+R(D)
    • P(c);OGATE,P_SPINP(c),XR(D)::QAB1(F),XP(c)
  • Actual
    • Q(F);
    • Threat
      • QAR2(F)
    • Vars
      • K(a);N_GUARD,S_FLIGHT::B(G)+R(D),DCHECK
      • P(c);SBLOCK,XP(C)::B(G)+R(D),DCHECK
      • B(d);N_GUARD::B(G)+R(D)
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