MESON Chess Problem Database

Problem Display
PID: 195903 (q1N5/1B1R4/b3p3/5R2/Ppk3N1/1p5p/1P2p2r/2K1Q1br w - - 0 1)

Reilly, William Henry

Western Daily Mercury, 1918

(First published on Sat Mar 2 1918)

q1N5/1B1R4/b3p3/5R2/Ppk3N1/1p5p/1P2p2r/2K1Q1br

#2

9 + 11

15239 Valois Notebooks 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Rf2
      • 2.Se3#
      • 2.Sb6#
    • 1...Be3+
      • 2.Sxe3#
    • 1...Bc5
      • 2.Se5#
    • 1...Bb6
      • 2.Sxb6#
    • 1...Ba7
      • 2.Bxa6#
  • Tries
    • 1.Sd6+?
      • 1...Kd3
        • 2.Qd2#
      • 1...Kd4!
    • 1.Rf4+?
      • 1...Kc5
        • 2.Rc7#
        • 2.Qxb4#
      • 1...Bd4!
    • 1.Rc5+?
      • 1...Bxc5
        • 2.Se5#
      • 1...Kxc5!
  • Keys
    • 1.Kd2!
      • threat
        • 2.Qc1#
      • 1...Be3+
        • 2.Sxe3#
      • 1...Bf2
        • 2.Qxe2#
      • 1...Bd4
        • 2.Sd6#
      • 1...Bc5
        • 2.Se5#
      • 1...Bb6
        • 2.Sxb6#
      • 1...Ba7
        • 2.Bxa6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • B(a);CHECK,N_GUARD,P_PINQ(B)::S(E),XB(a)
    • B(a);P_PINQ(B),SBLOCK::S(E)
    • B(a);N_GUARD,P_PINQ(B)::S(I),XB(a)
    • B(a);P_PINQ(B),S_CUTQ(k)::B(G),XB(i)
  • Tries
    • Try
      • S(I);CHECK
      • Vars
        • K(h);S_FLIGHT::QAR1(B)
      • Refutation
        • K(h);P-FLIGHT
    • Try
      • R(F);CHECK
      • Refutation
        • B(a);P_PINQ(B),P_SPINB(a)
    • Try
      • R(F);CHECK
      • Vars
        • B(a);P_PINQ(B),SBLOCK,XR(F)::S(E)
      • Refutation
        • K(h);P-FLIGHT,XR(F)
  • Actual
    • K(A);S_FLIGHT
    • Threat
      • QAR(B)
    • Vars
      • B(a);CHECK,N_GUARD::S(E),XB(a)
      • B(a);S_CUTR(d)::QAB(B),XP(c)
      • B(a);SBLOCK::S(I)
      • B(a);SBLOCK::S(E)
      • B(a);N_GUARD::S(I),XB(a)
      • B(a);S_CUTQ(k)::B(G),XB(i)
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