MESON Chess Problem Database

Problem Display
PID: 141406 (8/qp6/Pp2K3/1R2R3/Bpk1P3/pN2r3/r2bP3/n2N4 w - - 0 1)

Markwick, Frederick W

Source?, 1882

8/qp6/Pp2K3/1R2R3/Bpk1P3/pN2r3/r2bP3/n2N4

#2

9 + 10

14867 BCPS Library 2011

SOLUTION

  • SOUND
  • Sets
    • 1...Rxe4
      • 2.Rxe4#
    • 1...Bc3
      • 2.Sxe3#
  • Tries
    • 1.Sxd2+?
      • 1...Kd4
        • 2.Rxb4#
        • 2.Rbd5#
        • 2.Red5#
      • 1...Rxd2!
    • 1.Sa5+?
      • 1...Kd4
        • 2.Rbd5#
      • 1...bxa5!
  • Keys
    • 1.Rbd5!
      • threat
        • 2.Rd4#
      • 1...Rxb3
        • 2.Bb5#
      • 1...Rxe4
        • 2.Rxe4#
      • 1...Sxb3
        • 2.Bb5#
      • 1...Rd3
        • 2.exd3#
      • 1...Bc3
        • 2.Sxe3#
      • 1...Sc2
        • 2.Sxd2#
      • 1...b5
        • 2.Sa5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • R(e);OGATE,P_PINR(G),XP(E)::R(G),XR(e)
    • B(c);N_GUARD,SBLOCK::S(A),XR(e)
  • Tries
    • Try
      • S(C);CHECK,XB(c)
      • Refutation
        • R(b);XS(C)
    • Try
      • S(C);CHECK
      • Vars
        • K(g);P-FLIGHT::R1(F)
      • Refutation
        • P(h);XS(C)
  • Actual
    • R(F);
    • Threat
      • R1(F)
    • Vars
      • R(e);SBLOCK,XS(C)::B(D)
      • R(e);OGATE,P_PINR(G),XP(E)::R(G),XR(e)
      • S(a);SBLOCK,XS(C)::B(D)
      • R(e);OGATE::P(B),XR(e)
      • B(c);N_GUARD,SBLOCK::S(A),XR(e)
      • S(a);S_CUTR(b)::S(C),XB(c)
      • P(h);N_GUARD::S(C)
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