MESON Chess Problem Database

Problem Display
PID: 145482 (7Q/8/B2p4/3pp3/3R2K1/4k2P/8/2R5 w - - 0 1)

Barnett, Bernard

American Chess Magazine, 0000

7Q/8/B2p4/3pp3/3R2K1/4k2P/8/2R5

#2

6 + 4

619 New Orleans Times-Democrat 1888
14867 BCPS Library 2012

SOLUTION

  • SOUND
  • Tries
    • 1.Rc2?
      • 1...exd4
        • 2.Re2#
        • 2.Qe8#
      • 1...e4
        • 2.Re2#
      • 1...Kxd4!
    • 1.Qxe5+?
      • 1...Kf2
        • 2.Rd2#
        • 2.Qg3#
        • 2.Qe2#
      • 1...dxe5!
    • 1.Qf6?
      • 1...exd4
        • 2.Qf4#
      • 1...e4
        • 2.Re1#
        • 2.Rc3#
      • 1...Kxd4!
    • 1.Qh6+?
      • 1...Kf2
        • 2.Rd2#
        • 2.Qd2#
      • 1...Kxd4!
  • Keys
    • 1.Rd2!
      • 1...Kxd2
        • 2.Qh6#
      • 1...Ke4
        • 2.Re1#
      • 1...d4
        • 2.Re2#
      • 1...e4
        • 2.Re2#
        • 2.Qc3#
        • 2.Qd4#
        • 2.Qh6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(A);
      • Vars
        • P(c);::R1(A)
      • Refutation
        • K(a);P_SPINP(c),S_FLIGHT,XR(C)
    • Try
      • Q(F);CHECK,XP(c)
      • Refutation
        • P(d);XQ(F)
    • Try
      • Q(F);
      • Vars
        • P(c);N_GUARD,XR(C)::QAB1(F)
      • Refutation
        • K(a);P_SPINP(c),S_FLIGHT,XR(C)
    • Try
      • Q(F);CHECK
      • Refutation
        • K(a);S_FLIGHT,XR(C)
  • Actual
    • R(C);
    • Vars
      • K(a);S_FLIGHT,XR(C)::QAB(F)
      • K(a);P-FLIGHT::R(A)
      • P(b);SBLOCK::R1(C)
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