MESON Chess Problem Database

Problem Display
PID: 103129 (6Q1/p3p3/KnppR3/2k5/2p2P2/4P3/B2P4/1R6 w - - 0 1)

Maguire, Elihu S

Montreal Gazette, 1894

6Q1/p3p3/KnppR3/2k5/2p2P2/4P3/B2P4/1R6

#2

8 + 7

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Kd5
      • 2.Re5#
    • 1...c3
      • 2.d4#
  • Tries
    • 1.Rxb6?
      • 1...Kd5
        • 2.Re5#
      • 1...c3
        • 2.d4#
      • 1...d5
        • 2.Rexc6#
      • 1...axb6!
    • 1.Qg5+?
      • 1...d5
        • 2.Qxe7#
      • 1...Sd5!
    • 1.d4+?
      • 1...Kd5
        • 2.Re5#
        • 2.Rxe7#
      • 1...cxd4 ep!
  • Keys
    • 1.Qd8!
      • 1...Kd5
        • 2.Re5#
      • 1...Sa4
        • 2.Qa5#
      • 1...Sd5
        • 2.Qa5#
      • 1...Sd7
        • 2.Qa5#
      • 1...Sa8
        • 2.Qa5#
      • 1...Sc8
        • 2.Qa5#
      • 1...c3
        • 2.d4#
      • 1...d5
        • 2.Qxe7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
    • K(b);P-FLIGHT,P_SPINP(a)::QAB(H)+R(G),DCHECK
    • P(a);N_GUARD::P(C)
  • Tries
    • Try
      • R(A);XS(c)
      • Vars
        • K(b);P-FLIGHT,P_SPINP(a)::QAB(H)+R(G),DCHECK
        • P(a);N_GUARD::P(C)
        • P(e);OGATE::R1(G),XP(d)
      • Refutation
        • P(f);XR(A)
    • Try
      • Q(H);CHECK
      • Vars
        • P(e);OGATEB,P_SPINP(e),SBLOCK::QAB(H),XP(g)
      • Refutation
        • S(c);P_SPINS(c)
    • Try
      • P(C);CHECK
      • Refutation
        • P(a);EP,XP(C)
  • Actual
    • Q(H);
    • Vars
      • K(b);P-FLIGHT,P_SPINP(a)::R1(G)
      • S(c);OGATE::QAR2(H)
      • S(c);OGATE,SBLOCK::QAR2(H)
      • P(a);N_GUARD::P(C)
      • P(e);OGATEB,SBLOCK::QAB(H),XP(g)
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