MESON Chess Problem Database

Problem Display
PID: 171057 (7B/2pR4/2Pb4/2p1q3/2P5/1K1B4/8/k7 w - - 0 1)

Belotbekov, Sujunbek Ismailovich

Variantim, 1990

7B/2pR4/2Pb4/2p1q3/2P5/1K1B4/8/k7

#2

6 + 5

SOLUTION

  • SOUND
  • Sets
    • 1...Qb2+
      • 2.Bxb2#
    • 1...Qc3+
      • 2.Bxc3#
    • 1...Be7
      • 2.Bxe5#
    • 1...Bf8
      • 2.Bxe5#
  • Tries
    • 1.Rxc7?
      • threat
        • 2.Ra7#
      • 1...Qb2+
        • 2.Bxb2#
      • 1...Qc3+
        • 2.Bxc3#
      • 1...Bxc7!
    • 1.Rf7?
      • threat
        • 2.Rf1#
      • 1...Qb2+
        • 2.Bxb2#
      • 1...Qc3+
        • 2.Bxc3#
      • 1...Qf6!
    • 1.Rh7?
      • threat
        • 2.Rh1#
      • 1...Qb2+
        • 2.Bxb2#
      • 1...Qc3+
        • 2.Bxc3#
      • 1...Qxh8!
    • 1.Rd8?
      • threat
        • 2.Ra8#
      • 1...Qb2+
        • 2.Bxb2#
      • 1...Qc3+
        • 2.Bxc3#
      • 1...Qxh8!
  • Keys
    • 1.Re7!
      • 1...Qb2+
        • 2.Bxb2#
      • 1...Qc3+
        • 2.Bxc3#
      • 1...Qxh8
        • 2.Re1#
      • 1...Bxe7
        • 2.Bxe5#
      • 1...Qd4
        • 2.Re1#
      • 1...Qf6
        • 2.Re1#
      • 1...Qg7
        • 2.Re1#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • Q(c);CHECK,OGATE::B(F),XQ(c)
    • B(d);N_GUARD::B(F),XQ(c)
  • Tries
    • Try
      • R(E);XP(e)
      • Threat
        • R(E)
      • Vars
        • Q(c);CHECK,OGATE::B(F),XQ(c)
      • Refutation
        • B(d);XR(E)
    • Try
      • R(E);
      • Threat
        • R(E)
      • Vars
        • Q(c);CHECK,OGATE::B(F),XQ(c)
      • Refutation
        • Q(c);
    • Try
      • R(E);
      • Threat
        • R(E)
      • Vars
        • Q(c);CHECK,OGATE::B(F),XQ(c)
      • Refutation
        • Q(c);N_SPINQ(c),XB(F)
    • Try
      • R(E);
      • Threat
        • R(E)
      • Vars
        • Q(c);CHECK,OGATE::B(F),XQ(c)
      • Refutation
        • Q(c);N_SPINQ(c),XB(F)
  • Actual
    • R(E);
    • Vars
      • Q(c);CHECK,OGATE::B(F),XQ(c)
      • Q(c);N_SPINQ(c),OGATE,XB(F)::R(E)
      • B(d);N_GUARD,XR(E)::B(F),XQ(c)
      • Q(c);OGATE::R(E)
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