MESON Chess Problem Database

Problem Display
PID: 23842 (1r6/8/8/3B4/2p5/kPQ5/8/K7 w - - 0 1)

Markovtsy, Vassyl Yuriovich

Probleemblad, 1997

1r6/8/8/3B4/2p5/kPQ5/8/K7

#2

4 + 3

2786 More Fun with Chess Miniatures 2000
145 StrateGems 2008

SOLUTION

  • SOUND
  • Sets
    • 1...Rxb3
      • 2.Qa5#
    • 1...Rb4
      • 2.Qb2#
    • 1...cxb3
      • 2.Qa5#
  • Tries
    • 1.Bc6?
      • threat
        • 2.b4#
      • 1...Rxb3
        • 2.Qa5#
      • 1...cxb3
        • 2.Qa5#
      • 1...Rb4
        • 2.Qb2#
      • 1...Rb5!
    • 1.bxc4+?
      • 1...Rb3
        • 2.Qa5#
      • 1...Ka4!
  • Keys
    • 1.Qxc4!
      • threat
        • 2.Qa4#
      • 1...Rxb3
        • 2.Qxb3#
      • 1...Rb4
        • 2.Qc1#
      • 1...Ra8
        • 2.Qc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • R(c);P_SPINR(c),SBLOCK,XP(B)::QAR2(C)
    • R(c);SBLOCK::QAB1(C)
    • P(b);P_SPINP(b),XP(B)::QAR2(C)
  • Tries
    • Try
      • B(D);
      • Threat
        • QAR(C)+P(B)
      • Vars
        • R(c);P_SPINR(c),SBLOCK,XP(B)::QAR2(C)
        • P(b);P_SPINP(b),SBLOCK,XP(B)::QAR2(C)
        • R(c);SBLOCK::QAB1(C)
      • Refutation
        • R(c);
    • Try
      • P(B);CHECK,XP(b)
      • Vars
        • R(c);P_SPINR(c),SBLOCK::QAR2(C)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • Q(C);XP(b)
    • Threat
      • QAR1(C)
    • Vars
      • R(c);OGATE,XP(B)::QAR1(C),XR(c)
      • R(c);SBLOCK::QAB(C)
      • R(c);N_GUARD::QAB(C)
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