MESON Chess Problem Database

Problem Display
PID: 132277 (8/8/8/2B4r/8/6P1/3Q3N/3K3k w - - 0 1)

Lincoln, Robert A

Comm., Rybynsk 7 Dney, 2005

8/8/8/2B4r/8/6P1/3Q3N/3K3k

#2

5 + 2

145 StrateGems 2008

SOLUTION

  • SOUND
  • Tries
    • 1.Sf1?
      • 1...Rxc5
        • 2.Qh2#
      • 1...Rh2
        • 2.Qxh2#
      • 1...Rh3
        • 2.Qd5#
      • 1...Rd5
        • 2.Qxd5#
      • 1...Re5
        • 2.Qh2#
      • 1...Rf5
        • 2.Qh2#
      • 1...Rg5
        • 2.Qh2#
      • 1...Rh6
        • 2.Qd5#
      • 1...Rh7
        • 2.Qd5#
      • 1...Rh8
        • 2.Qd5#
      • 1...Rh4!
  • Keys
    • 1.Sg4!
      • 1...Rxc5
        • 2.Qh2#
      • 1...Rh4
        • 2.Qd5#
      • 1...Rh2
        • 2.Qxh2#
      • 1...Rh3
        • 2.Qd5#
      • 1...Rd5
        • 2.Qxd5#
      • 1...Re5
        • 2.Qh2#
      • 1...Rf5
        • 2.Qh2#
      • 1...Rg5
        • 2.Qh2#
      • 1...Rh6
        • 2.Qd5#
      • 1...Rh7
        • 2.Qd5#
      • 1...Rh8
        • 2.Qd5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 11
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(C);
      • Vars
        • R(b);N_GUARD,XB(E)::QAR1(B)
        • R(b);N_GUARD::QAR1(B),XR(b)
        • R(b);N_GUARD::QAB(B)
        • R(b);N_GUARD,P_PINQ(B)::QAB(B),XR(b)
        • R(b);N_GUARD::QAR1(B)
      • Refutation
        • R(b);
  • Actual
    • S(C);
    • Vars
      • R(b);N_GUARD,XB(E)::QAR1(B)
      • R(b);N_GUARD::QAB(B)
      • R(b);N_GUARD::QAR1(B),XR(b)
      • R(b);N_GUARD,P_PINQ(B)::QAB(B),XR(b)
      • R(b);N_GUARD::QAR1(B)
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