MESON Chess Problem Database

Problem Display
PID: 2962 (4n2R/8/r1R5/2Nq2k1/4p2N/3PP2P/3Q4/4n2K w - - 0 1)

Tucker, HJ

4th HM., Brisbane Courier, 1914-1915

4n2R/8/r1R5/2Nq2k1/4p2N/3PP2P/3Q4/4n2K

#2

9 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Qa2
      • 2.Sxe4#
    • 1...Qb3
      • 2.Sxe4#
    • 1...Qf7
      • 2.Sxe4#
    • 1...Qg8
      • 2.Sxe4#
    • 1...Qd6
      • 2.Sxe4#
    • 1...Qd7
      • 2.Sxe4#
    • 1...Qd8
      • 2.Sxe4#
    • 1...Ra1
      • 2.Rg6#
    • 1...Ra2
      • 2.Rg6#
    • 1...Ra3
      • 2.Rg6#
    • 1...Ra4
      • 2.Rg6#
    • 1...Ra5
      • 2.Rg6#
    • 1...Ra7
      • 2.Rg6#
    • 1...Ra8
      • 2.Rg6#
    • 1...Sc2
      • 2.Qg2#
    • 1...Sg2
      • 2.Qxg2#
    • 1...Sxd3
      • 2.Qg2#
    • 1...Sf3
      • 2.Qg2#
    • 1...exd3+
      • 2.e4#
  • Tries
    • 1.Sf3+?
      • 1...Kf5
        • 2.Rh5#
      • 1...exf3
        • 2.e4#
      • 1...Sxf3!
  • Keys
    • 1.Qa5!
      • threat
        • 2.Sxe4#
      • 1...exd3+
        • 2.Se4#
      • 1...Qxc5
        • 2.Qxc5#
      • 1...Rxa5
        • 2.Rg6#
      • 1...Sd6
        • 2.Qd8#
      • 1...Sf6
        • 2.Se6#

This is a version of 55938

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 17
  • Sets
    • Q(c);N_GUARD::S(G),XP(b)
    • R(e);N_GUARD::R1(H)
    • S(a);N_GUARD::QAR(B)
    • S(a);N_GUARD::QAR(B),XS(a)
    • S(a);N_GUARD,XP(C)::QAR(B)
    • P(b);CHECK,OGATE,XP(C)::QAB(B)+P(D)
  • Tries
    • Try
      • S(F);CHECK
      • Vars
        • K(d);P-FLIGHT::R(I)
        • P(b);OGATE,XS(F)::QAB(B)+P(D)
      • Refutation
        • S(a);XS(F)
  • Actual
    • Q(B);
    • Threat
      • S(G),XP(b)
    • Vars
      • P(b);CHECK,XP(C)::S(G)
      • Q(c);OGATE,P_SPINQ(c),XS(G)::QAR(B),XQ(c)
      • R(e);N_GUARD,XQ(B)::R1(H)
      • S(f);N_GUARD,S_CUTQ(c)::QAB(B)
      • S(f);SBLOCK::S(G)
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Developed and maintained by Brian Stephenson.
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