MESON Chess Problem Database

Problem Display
PID: 230174 (8/6b1/3p1q2/1KNk1r2/pp2R3/2Bp4/6N1/1B1R1n2 w - - 0 1)

Bailey, HL

Preston Guardian, 1881

(First published on Wed Nov 2 1881)

8/6b1/3p1q2/1KNk1r2/pp2R3/2Bp4/6N1/1B1R1n2

#2

7 + 9

15239 Valois Notebooks 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Re5
      • 2.Rxd3#
      • 2.Rd4#
    • 1...Sd2
      • 2.Se3#
    • 1...Sh2
      • 2.Se3#
    • 1...Se3
      • 2.Sxe3#
    • 1...Sg3
      • 2.Se3#
    • 1...bxc3
      • 2.Ba2#
  • Tries
    • 1.Re5+?
      • 1...Rxe5
        • 2.Rxd3#
      • 1...dxe5
        • 2.Rxd3#
      • 1...Qxe5!
  • Keys
    • 1.Sxd3!
      • threat
        • 2.Sxb4#
        • 2.Sdf4#
      • 1...Kxe4+
        • 2.Se5#
      • 1...bxc3
        • 2.Sb4#
        • 2.Sdf4#
      • 1...Qe5
        • 2.Sdf4#
      • 1...Re5
        • 2.Sdf4#
      • 1...Qd4
        • 2.Sxb4#
      • 1...Rf4
        • 2.Sxb4#
        • 2.Sdxf4#
      • 1...Sd2
        • 2.Sxb4#
      • 1...b3
        • 2.Sb4#
        • 2.Sdf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 4
    • REMOVED MATES = 4
  • Sets
    • S(a);N_GUARD,N_SPINP(b)::S(C)
    • S(a);N_GUARD::S(C)
    • S(a);N_GUARD::S(C),XS(a)
    • P(d);N_GUARD,XB(D)::B(A)
  • Tries
    • Try
      • R(E);CHECK
      • Vars
        • R(f);XR(E)::R(B),XP(b)
        • P(g);XR(E)::R(B),XP(b)
      • Refutation
        • Q(h);XR(E)
  • Actual
    • S(G);XP(b)
    • Threat
      • DUALS(2)
    • Vars
      • K(e);CHECK,S_FLIGHT,XR(E)::B(A)+S(G)
      • Q(h);::R(B)+S(G),DCHECK
      • R(f);::R(B)+S(G),DCHECK
      • Q(h);::S(G),XP(d)
      • S(a);::S(G),XP(d)
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