MESON Chess Problem Database

Problem Display
PID: 216258 (4N2B/4R3/4np2/Q1b3p1/1Npkn1P1/2p1R1P1/2P1P3/4K3 w - - 0 1)

Rohner, William A

Australasian (The), 1882

4N2B/4R3/4np2/Q1b3p1/1Npkn1P1/2p1R1P1/2P1P3/4K3

#2

11 + 8

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Ke5
      • 2.Bxf6#
      • 2.Qxc5#
    • 1...Sf4
      • 2.R3xe4#
      • 2.R7xe4#
    • 1...Sc7
      • 2.R3xe4#
      • 2.R7xe4#
    • 1...Sg7
      • 2.R3xe4#
      • 2.R7xe4#
    • 1...Sd8
      • 2.R3xe4#
      • 2.R7xe4#
    • 1...Sf8
      • 2.R3xe4#
      • 2.R7xe4#
  • Tries
    • 1.Bxf6+?
      • 1...Kxe3
        • 2.Sd5#
      • 1...Sxf6!
    • 1.Rd3+?
      • 1...Ke5
        • 2.Sc6#
        • 2.Rd5#
      • 1...cxd3!
  • Keys
    • 1.Rxe6!
      • threat
        • 2.R3xe4#
        • 2.R6xe4#
      • 1...Kxe3
        • 2.Qxc5#
      • 1...Sxg3
        • 2.Bxf6#
      • 1...Sd2
        • 2.Bxf6#
      • 1...Sf2
        • 2.Bxf6#
      • 1...Sd6
        • 2.Bxf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(K);CHECK,XP(h)
      • Vars
        • K(c);S_FLIGHT,XR(D)::S(F)
      • Refutation
        • S(d);XB(K)
    • Try
      • R(D);CHECK
      • Refutation
        • P(b);XR(D)
  • Actual
    • R(I);XS(g)
    • Threat
      • DUALS(2)
    • Vars
      • K(c);N_SPINP(h),P_SPINS(d),S_FLIGHT,XR(D)::QAB(H),XB(e)
      • S(d);N_GUARD,XP(E)::B(K),XP(h)
      • S(d);N_GUARD::B(K),XP(h)
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