MESON Chess Problem Database

Problem Display
PID: 153832 (Q3q3/p3p3/2bB4/5N2/2k5/P1bR1P2/K7/2RB1n2 w - - 0 1)

Segum, AW

New Orleans Times-Democrat, 1888

(First published on Sun Mar 4 1888)

Q3q3/p3p3/2bB4/5N2/2k5/P1bR1P2/K7/2RB1n2

#2

9 + 7

14867 BCPS Library 2015

SOLUTION

  • SOUND
  • Sets
    • 1...Ba4
      • 2.Qd5#
    • 1...Bb5
      • 2.Rcxc3#
      • 2.Rdxc3#
      • 2.Rd4#
      • 2.Qe4#
      • 2.Qd5#
    • 1...Bd5
      • 2.Qxd5#
    • 1...Bd7
      • 2.Qd5#
  • Tries
    • 1.Rdxc3+?
      • 1...Kd5
        • 2.Bb3#
      • 1...Kb5!
    • 1.Qxc6+?
      • 1...Kxd3
        • 2.Qxc3#
      • 1...Qxc6!
  • Keys
    • 1.Rd5!
      • threat
        • 2.Bb3#
      • 1...Kxd5
        • 2.Bb3#
      • 1...Bxd5
        • 2.Be2#
      • 1...Qb8
        • 2.Qxc6#
      • 1...Ba4
        • 2.Be2#
      • 1...Sd2
        • 2.Se3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • B(d);OGATE::QAB1(I)
    • B(d);OGATE::QAB1(I),XB(d)
  • Tries
    • Try
      • R(E);CHECK,XB(b)
      • Vars
        • K(c);P_SPINB(d),S_FLIGHT::B(B)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • Q(I);CHECK,XB(d)
      • Vars
        • K(c);N_SPINB(b),OGATE,S_FLIGHT,XR(E)::QAR1(I),XB(b)
      • Refutation
        • Q(g);XQ(I)
  • Actual
    • R(E);
    • Threat
      • B(B)
    • Vars
      • K(c);N_SPINB(b),P_SPINB(d),S_FLIGHT,XR(E)::B(B)
      • B(d);XR(E)::B(B)
      • Q(g);N_GUARD::QAR2(I),XB(d)
      • B(d);::B(B)
      • S(a);N_GUARD::S(G)
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