MESON Chess Problem Database

Problem Display
PID: 161863 (1KB5/1P6/k2r4/p2Q4/8/8/8/8 w - - 0 1)

Andreev, Aleksandr Grigorevich

Kuban segodniya, 1996

1KB5/1P6/k2r4/p2Q4/8/8/8/8

#2

4 + 3

15148 Sadier Collection 2017

SOLUTION

  • SOUND
  • Sets
    • 1...Rc6
      • 2.Qxc6#
    • 1...Rd7
      • 2.Qc6#
    • 1...Rd8
      • 2.Qc6#
  • Keys
    • 1.Ka8!
      • threat
        • 2.b8Q#
        • 2.b8R#
      • 1...Kb6
        • 2.b8Q#
      • 1...Rxd5
        • 2.b8Q#
        • 2.b8R#
      • 1...Rc6
        • 2.Qxc6#
      • 1...Re6
        • 2.b8Q#
        • 2.b8R#
      • 1...Rf6
        • 2.b8Q#
        • 2.b8R#
      • 1...Rg6
        • 2.b8Q#
        • 2.b8R#
      • 1...Rh6
        • 2.b8Q#
        • 2.b8R#
      • 1...Rd7
        • 2.Qc6#
      • 1...Rd8
        • 2.Qc6#
      • 1...a4
        • 2.b8Q#
        • 2.b8R#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • R(c);N_GUARD::QAR2(A),XR(c)
    • R(c);N_GUARD::QAR2(A)
    • R(c);N_GUARD,P_PINB(D)::QAR2(A)
  • Actual
    • K(C);P-FLIGHT
    • Threat
      • P=Q
    • Vars
      • K(b);P-FLIGHT::P=Q
      • R(c);XQ(A)::P=Q
      • R(c);N_GUARD::QAR2(A),XR(c)
      • R(c);::P=Q
      • R(c);SBLOCK::P=Q
      • R(c);N_GUARD::QAR2(A)
      • R(c);N_GUARD,P_PINB(D)::QAR2(A)
      • P(a);::P=Q
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