MESON Chess Problem Database

Problem Display
PID: 55 (3R1r2/3n2NN/6p1/2Pknb1p/Q4b1r/B2p1p1p/8/K3R3 w - - 0 1)

Easom, GWA

Evening Standard, 1930

3R1r2/3n2NN/6p1/2Pknb1p/Q4b1r/B2p1p1p/8/K3R3

#2

8 + 12

887 Mate in Two Moves 1931

SOLUTION

  • SOUND
  • Sets
    • 1...Rf6
      • 2.Sxf6#
    • 1...Re8
      • 2.Sf6#
    • 1...Rg8
      • 2.Sf6#
    • 1...Rh8
      • 2.Sf6#
    • 1...Be4
      • 2.Qxe4#
    • 1...Bg4
      • 2.Qe4#
    • 1...Be6
      • 2.Qe4#
    • 1...Sf7
      • 2.Sf6#
  • Tries
    • 1.Rxd7+?
      • 1...Bxd7
        • 2.Qe4#
      • 1...Sxd7!
  • Keys
    • 1.Se6!
      • threat
        • 2.Sc7#
      • 1...Kxe6
        • 2.Qxd7#
      • 1...Bxe6
        • 2.Qe4#
      • 1...Sc4
        • 2.Qa8#
      • 1...Sg4
        • 2.Sxf4#
      • 1...Sc6
        • 2.Qb3#
      • 1...Sf7
        • 2.Sf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 6
  • Sets
    • R(l);N_GUARD::S(G),XR(l)
    • R(l);N_GUARD::S(G)
    • B(h);N_GUARD::QAB1(D),XB(h)
    • B(h);N_GUARD::QAB1(D)
    • S(g);S_CUTR(l)::S(G)
  • Tries
    • Try
      • R(H);CHECK,XS(k)
      • Vars
        • B(h);XR(H)::QAB1(D)
      • Refutation
        • S(g);XR(H)
  • Actual
    • S(F);
    • Threat
      • S(F)
    • Vars
      • K(f);N_SPINS(k),P_SPINS(g),S_FLIGHT,XS(F)::QAB1(D),XS(k)
      • B(h);N_GUARD,SBLOCK,XS(F)::QAB1(D)
      • S(g);N_GUARD,SBLOCK::QAB(D)
      • S(g);S_CUTR(e)::S(F),XB(d)
      • S(g);S_CUTR(l)::S(G)
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