MESON Chess Problem Database

Problem Display
PID: 195123 (8/5Q1p/B2PP1pP/1b4P1/2Npp3/3k4/1P4R1/5K2 w - - 0 1)

Hawkins, Xenophon

Densmore MT (Pittsburgh Gazette-Times), 1918

8/5Q1p/B2PP1pP/1b4P1/2Npp3/3k4/1P4R1/5K2

#2

10 + 6

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Ba4
      • 2.Rd2#
    • 1...Bc6
      • 2.Rd2#
    • 1...Bd7
      • 2.Rd2#
    • 1...Be8
      • 2.Rd2#
  • Tries
    • 1.Qf2?
      • threat
        • 2.Se5#
        • 2.Qc2#
        • 2.Qe2#
      • 1...Bxc4
        • 2.Qd2#
        • 2.Qe2#
      • 1...e3
        • 2.Qc2#
      • 1...Ba4
        • 2.Se5#
        • 2.Qd2#
        • 2.Qe2#
      • 1...Kxc4!
    • 1.Qf4?
      • threat
        • 2.Se5#
      • 1...Bxc4
        • 2.Rd2#
        • 2.Qd2#
      • 1...Kxc4!
  • Keys
    • 1.Qb7!
      • 1...Kxc4
        • 2.Qxb5#
      • 1...Bxc4
        • 2.Qb3#
      • 1...Bxa6
        • 2.Qb3#
      • 1...Ba4
        • 2.Rd2#
      • 1...Bc6
        • 2.Rd2#
        • 2.Qb3#
      • 1...Bd7
        • 2.Rd2#
        • 2.Qb3#
      • 1...Be8
        • 2.Rd2#
        • 2.Qb3#
      • 1...e3
        • 2.Se5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 3
  • Sets
    • B(d);::R1(C)
  • Tries
    • Try
      • Q(J);
      • Threat
        • DUALS(3)
      • Vars
        • P(c);::QAB1(J)
      • Refutation
        • K(a);P_SPINB(d),S_FLIGHT,XS(D)
    • Try
      • Q(J);
      • Threat
        • S(D)
      • Refutation
        • K(a);P_SPINB(d),S_FLIGHT,XS(D)
  • Actual
    • Q(J);
    • Vars
      • K(a);OGATEB,P_SPINB(d),S_FLIGHT,XS(D)::QAB1(J),XB(d)
      • B(d);OGATE,P_SPINB(d),XS(D)::QAR2(J)
      • B(d);OGATE,XB(F)::QAR2(J)
      • B(d);::R1(C)
      • P(c);SBLOCK::S(D)
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