MESON Chess Problem Database

Problem Display
PID: 234728 (2k3r1/2B5/1KQp2P1/8/8/8/8/8 w - - 0 1)

Lincoln, Robert A

Kudesnik, 2013

2k3r1/2B5/1KQp2P1/8/8/8/8/8

#2

4 + 3

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Rxg6
      • 2.Qe8#
    • 1...Rg7
      • 2.Qe8#
    • 1...Rd8
      • 2.Bxd6#
    • 1...Re8
      • 2.Qxe8#
    • 1...d5
      • 2.Qe6#
  • Tries
    • 1.Bb8+?
      • 1...Kxb8
        • 2.Qb7#
      • 1...Kd8!
    • 1.Bd8+?
      • 1...Kb8
        • 2.Qb7#
      • 1...Kxd8!
  • Keys
    • 1.g7!
      • 1...Rxg7
        • 2.Qe8#
      • 1...Rd8
        • 2.Bxd6#
      • 1...Re8
        • 2.Qxe8#
      • 1...Rf8
        • 2.gxf8Q#
        • 2.gxf8R#
      • 1...Rh8
        • 2.gxh8Q#
        • 2.gxh8R#
      • 1...d5
        • 2.Qe6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 1
  • Sets
    • R(c);N_GUARD,XP(C)::QAR2(B)
    • R(c);N_GUARD::QAR2(B)
    • R(c);SBLOCK::QAR(B)+B(D),XP(a)
    • R(c);N_GUARD::QAR2(B),XR(c)
    • P(a);OGATE::QAB(B)
  • Tries
    • Try
      • B(D);CHECK
      • Vars
        • K(b);P-FLIGHT,XB(D)::QAR1(B)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • B(D);CHECK
      • Vars
        • K(b);P-FLIGHT::QAR1(B)
      • Refutation
        • K(b);P-FLIGHT,XB(D)
  • Actual
    • P(C);
    • Vars
      • R(c);N_GUARD,XP(C)::QAR2(B)
      • R(c);SBLOCK::QAR(B)+B(D),XP(a)
      • R(c);N_GUARD::QAR2(B),XR(c)
      • R(c);OGATE::PXR(c)=Q
      • P(a);OGATE::QAB(B)
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