MESON Chess Problem Database

Problem Display
PID: 6805 (2n5/2BBb1P1/KQ2qrP1/p3Nk2/r1n3R1/7P/8/8 w - - 0 1)

Warton, Joseph John

Social Chess Quarterly (The), 1933

2n5/2BBb1P1/KQ2qrP1/p3Nk2/r1n3R1/7P/8/8

#2

9 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Rf7
      • 2.Qxe6#
    • 1...Rf8
      • 2.Qxe6#
  • Tries
    • 1.Sf3?
      • threat
        • 2.Sd4#
        • 2.Sh4#
      • 1...Qxd7
        • 2.Sh4#
      • 1...Rxg6
        • 2.Rf4#
      • 1...S4xb6
        • 2.Sh4#
      • 1...Rf7
        • 2.Qxe6#
      • 1...Rf8
        • 2.Qxe6#
      • 1...Bc5
        • 2.Sh4#
      • 1...Bd6
        • 2.Qb1#
      • 1...Sb2
        • 2.Sh4#
      • 1...Sd2
        • 2.Sh4#
      • 1...Sa3
        • 2.Sh4#
      • 1...Se3
        • 2.Sh4#
      • 1...Se5
        • 2.Sh4#
      • 1...S4d6
        • 2.Qc5#
      • 1...S8d6!
  • Keys
    • 1.Sf7!
      • threat
        • 2.Sh6#
      • 1...Rxg6
        • 2.Rf4#
      • 1...Rxf7
        • 2.Qxe6#
      • 1...Bd6
        • 2.Qb1#
      • 1...S4d6
        • 2.Qc5#
      • 1...S8d6
        • 2.Qf2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • R(f);N_GUARD::QAB1(E),XQ(e)
  • Tries
    • Try
      • S(C);
      • Threat
        • DUALS(2)
      • Vars
        • Q(e);N_SPINQ(e),XB(H)::S(C)
        • R(f);SBLOCK,XP(F)::R1(B)
        • S(b);XQ(E)::S(C)
        • R(f);N_GUARD::QAB1(E),XQ(e)
        • B(g);::S(C)
        • B(g);N_PINQ(E)::QAB(E)
        • S(b);::S(C)
        • S(b);N_PINQ(E)::QAR(E)
      • Refutation
        • S(h);N_PINQ(E)
  • Actual
    • S(C);
    • Threat
      • S(C)
    • Vars
      • R(f);SBLOCK,XP(F)::R1(B)
      • R(f);N_GUARD,XS(C)::QAB1(E),XQ(e)
      • B(g);N_PINQ(E)::QAB(E)
      • S(b);N_PINQ(E)::QAR(E)
      • S(h);N_PINQ(E)::QAR(E)
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