MESON Chess Problem Database

Problem Display
PID: 104861 (4B3/3p4/5p2/5P2/5K1k/4p1p1/2Q2p2/5bR1 w - - 0 1)

St Maurice, Ephrem

La Presse, 1891

4B3/3p4/5p2/5P2/5K1k/4p1p1/2Q2p2/5bR1

#2

5 + 7

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Be2
      • 2.Rh1#
    • 1...Bd3
      • 2.Rh1#
    • 1...Bc4
      • 2.Rh1#
    • 1...Bb5
      • 2.Rh1#
    • 1...Ba6
      • 2.Rh1#
  • Tries
    • 1.Qd1?
      • threat
        • 2.Qg4#
        • 2.Qh5#
      • 1...Kh3
        • 2.Qh5#
      • 1...Be2
        • 2.Rh1#
      • 1...Bh3
        • 2.Qh5#
      • 1...e2!
  • Keys
    • 1.Qe2!
      • threat
        • 2.Qg4#
        • 2.Qh5#
      • 1...Kh3
        • 2.Qh5#
      • 1...Bxe2
        • 2.Rh1#
      • 1...Bh3
        • 2.Qh5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 4
  • Sets
    • B(a);N_GUARD::R(A)
    • B(a);N_GUARD,SBLOCK::R(A)
  • Tries
    • Try
      • Q(B);
      • Threat
        • DUALS(2)
      • Vars
        • K(e);P-FLIGHT::QAR2(B)
        • B(a);N_GUARD::R(A)
        • B(a);SBLOCK::QAR1(B)
      • Refutation
        • P(c);
  • Actual
    • Q(B);
    • Threat
      • DUALS(2)
    • Vars
      • K(e);P-FLIGHT::QAR2(B)
      • B(a);N_GUARD,XQ(B)::R(A)
      • B(a);SBLOCK::QAR1(B)
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