MESON Chess Problem Database

Problem Display
PID: 51741 (8/2q5/4N3/Q3n2p/1r5k/4R2B/6R1/2n4K w - - 0 1)

Yaroslavtsev, Arkady Ivanovich

Problem (Zagreb), 1966

8/2q5/4N3/Q3n2p/1r5k/4R2B/6R1/2n4K

#2

6 + 6

3310 2345 Chess Problems 1997

SOLUTION

  • SOUND
  • Sets
    • 1...Qd8
      • 2.Qxd8#
    • 1...Qc2
      • 2.Qd8#
    • 1...Qc3
      • 2.Qd8#
    • 1...Qc4
      • 2.Qd8#
    • 1...Qc6
      • 2.Qd8#
    • 1...Rb1
      • 2.Qe1#
    • 1...Rb3
      • 2.Qe1#
    • 1...Ra4
      • 2.Qe1#
    • 1...Rc4
      • 2.Qe1#
    • 1...Rd4
      • 2.Qe1#
    • 1...Re4
      • 2.Qe1#
    • 1...Rb5
      • 2.Qe1#
    • 1...Rb6
      • 2.Qe1#
    • 1...Rb7
      • 2.Qe1#
    • 1...Rb8
      • 2.Qe1#
    • 1...Sd3
      • 2.Qg5#
    • 1...Sc4
      • 2.Qg5#
    • 1...Sg4
      • 2.Qg5#
    • 1...Sc6
      • 2.Qg5#
    • 1...Sg6
      • 2.Qg5#
    • 1...Sd7
      • 2.Qg5#
  • Keys
    • 1.Bg4!
      • threat
        • 2.Rh3#
      • 1...Rxg4
        • 2.Rh2#
      • 1...Sxg4
        • 2.Qg5#
      • 1...hxg4
        • 2.Rh2#
      • 1...Qc3
        • 2.Qd8#
      • 1...Rb3
        • 2.Qe1#
      • 1...Sf3
        • 2.Qxh5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 18
  • Sets
    • Q(f);OGATE::QAB(E),XQ(f)
    • Q(f);OGATE::QAB(E)
    • Q(f);OGATE,P_PINR(B)::QAB(E)
    • R(b);OGATE::QAB(E)
    • R(b);OGATE,SBLOCK::QAB(E)
    • S(d);OGATE::QAB1(E)
  • Actual
    • B(D);
    • Threat
      • R1(C)
    • Vars
      • R(b);SBLOCK,XB(D)::R(B)
      • S(d);OGATE,XB(D)::QAB1(E)
      • P(e);SBLOCK,XB(D)::R(B)
      • Q(f);OGATE::QAB(E)
      • R(b);OGATE::QAB(E)
      • S(d);OGATE::QAR1(E),XP(e)
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