MESON Chess Problem Database

Problem Display
PID: 109963 (8/K1p2R2/4k2N/1p2r3/1BPQn1P1/5Bb1/b1Np1q2/4R3 w - - 0 1)

Sheppard, Charles William

Good Companions (January), 1920

8/K1p2R2/4k2N/1p2r3/1BPQn1P1/5Bb1/b1Np1q2/4R3

#2

10 + 9

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Qxe1
      • 2.Qd7#
    • 1...Qxd4+
      • 2.Sxd4#
    • 1...Qf1
      • 2.Qd7#
    • 1...Qe2
      • 2.Qd7#
    • 1...Qg2
      • 2.Qd7#
    • 1...Qh2
      • 2.Qd7#
    • 1...Qxf3
      • 2.Qd7#
    • 1...Rc5
      • 2.Qf6#
    • 1...Rd5
      • 2.Re7#
    • 1...Rf5
      • 2.Re7#
      • 2.gxf5#
    • 1...Rg5
      • 2.Rf6#
      • 2.Re7#
    • 1...Rh5
      • 2.Rf6#
      • 2.Re7#
    • 1...Sc5
      • 2.Qd5#
    • 1...Sg5
      • 2.Bd5#
    • 1...Sd6
      • 2.Bd5#
    • 1...Sf6
      • 2.Re7#
    • 1...c5
      • 2.Qd7#
  • Keys
    • 1.g5!
      • threat
        • 2.Re7#
      • 1...Qxd4+
        • 2.Sxd4#
      • 1...Sxg5
        • 2.Bd5#
      • 1...Rc5
        • 2.Qf6#
      • 1...Sc5
        • 2.Qd5#
      • 1...Sd6
        • 2.Bd5#
      • 1...c5
        • 2.Qd7#

This is a version of 101572

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 8
  • Sets
    • Q(c);N_PINQ(F),XR(A)::QAB1(F)
    • Q(c);CHECK,XQ(F)::S(B),XQ(c)
    • Q(c);N_PINQ(F)::QAB1(F)
    • Q(c);N_PINQ(F),XB(C)::QAB1(F)
    • R(g);N_PINQ(F),P_SPINS(e)::QAR1(F)
    • R(g);P_SPINS(e)::R1(J)
    • S(e);N_PINQ(F),P_SPINR(g)::QAB1(F)
    • S(e);OGATE,P_SPINR(g)::B(C)
    • S(e);P_SPINR(g),SBLOCK::R1(J)
    • P(i);N_PINQ(F)::QAB1(F)
  • Actual
    • P(G);
    • Threat
      • R1(J)
    • Vars
      • Q(c);CHECK,XQ(F)::S(B),XQ(c)
      • S(e);OGATE,P_SPINR(g),XP(G)::B(C)
      • R(g);N_PINQ(F),P_SPINS(e)::QAR1(F)
      • S(e);N_PINQ(F),P_SPINR(g)::QAB1(F)
      • S(e);OGATE,P_SPINR(g)::B(C)
      • P(i);N_PINQ(F)::QAB1(F)
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