MESON Chess Problem Database

Problem Display
PID: 200295 (4R2B/8/N1pkP3/KpRq4/p7/2n2B1n/3Q1p2/6b1 w - - 0 1)

Sushkov, Yuri Akimovich

Probleemblad, 1980

4R2B/8/N1pkP3/KpRq4/p7/2n2B1n/3Q1p2/6b1

#2

8 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Qxd2
      • 2.Be5#
      • 2.Rxc6#
    • 1...Qd3
      • 2.Be5#
      • 2.Rxc6#
    • 1...Qd4
      • 2.Be5#
      • 2.Rxc6#
  • Tries
    • 1.Qf4+?
      • 1...Qe5
        • 2.Bxe5#
        • 2.Rxc6#
        • 2.Qxe5#
        • 2.Qf8#
      • 1...Sxf4!
    • 1.Qd4?
      • threat
        • 2.Be5#
      • 1...Qxd4
        • 2.Rxc6#
      • 1...Bh2!
  • Keys
    • 1.Qh6!
      • threat
        • 2.Qf8#
      • 1...Qxf3
        • 2.Be5#
      • 1...Qxe6
        • 2.Qxe6#
      • 1...Qf5
        • 2.Rxc6#
      • 1...Qg5
        • 2.Rxc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(A);CHECK,N_PINQ(g)
      • Refutation
        • S(d);XQ(A)
    • Try
      • Q(A);
      • Threat
        • B(H)
      • Vars
        • Q(g);N_SPINQ(g),XQ(A)::R1(D),XP(h)
      • Refutation
        • B(a);
  • Actual
    • Q(A);N_PINQ(g)
    • Threat
      • QAB(A)
    • Vars
      • Q(g);N_GUARD,XB(B)::B(H)
      • Q(g);OGATE,P_SPINQ(g),XP(F)::QAR1(A),XQ(g)
      • Q(g);N_GUARD::R1(D),XP(h)
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