MESON Chess Problem Database

Problem Display
PID: 202921 (N7/r4n1Q/pR2p3/q2kP2K/pP2R3/1pB4p/3nP3/3r4 w - - 0 1)

Nield, Joshua

Western Daily Mercury, 1920

(First published on Fri Mar 26 1920)

N7/r4n1Q/pR2p3/q2kP2K/pP2R3/1pB4p/3nP3/3r4

#2

9 + 11

15239 Valois Notebooks 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Rc7
      • 2.Sxc7#
    • 1...Sxe5
      • 2.Rd4#
    • 1...Sg5
      • 2.Rd6#
    • 1...Sd6
      • 2.Rxd6#
    • 1...Sh6
      • 2.Rd6#
    • 1...Sd8
      • 2.Rd6#
    • 1...Sh8
      • 2.Rd6#
  • Keys
    • 1.Rc4!
      • threat
        • 2.Qd3#
      • 1...Kxc4
        • 2.Qd3#
      • 1...Qxb6
        • 2.Sxb6#
      • 1...Sxc4
        • 2.e4#
      • 1...Sxe5
        • 2.Rd4#
      • 1...Qc5
        • 2.Rxc5#
      • 1...Sb1
        • 2.Qe4#
      • 1...Sf1
        • 2.Qe4#
      • 1...Sf3
        • 2.Qe4#
      • 1...Se4
        • 2.Qxe4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 6
  • Sets
    • R(j);N_GUARD::S(I),XR(j)
    • S(k);SBLOCK,XP(E)::R1(D)
    • S(k);N_GUARD::R1(G)
    • S(k);N_GUARD::R1(G),XS(k)
  • Actual
    • R(D);
    • Threat
      • QAR2(H)
    • Vars
      • K(g);P_PINP(E),S_FLIGHT,XR(D)::QAB1(H)
      • Q(f);XR(G)::S(I),XQ(f)
      • S(b);N_GUARD,SBLOCK,XR(D)::P(A)
      • S(k);SBLOCK,XP(E)::R1(D)
      • Q(f);N_GUARD::R1(D),XQ(f)
      • S(b);N_GUARD::QAB1(H)
      • S(b);N_GUARD::QAB1(H),XS(b)
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