MESON Chess Problem Database

Problem Display
PID: 198399 (1Nq5/b7/2PPrr2/2R5/1P1kp2N/3p1b1Q/5P2/1K6 w - - 0 1)

Nield, Joshua

Brisbane Courier, 1920

1Nq5/b7/2PPrr2/2R5/1P1kp2N/3p1b1Q/5P2/1K6

#2

9 + 8

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Qxc6
      • 2.Sxc6#
    • 1...Rf5
      • 2.Sxf5#
    • 1...Rg6
      • 2.Sf5#
    • 1...Rh6
      • 2.Sf5#
    • 1...Bd1
      • 2.Qe3#
    • 1...Bh1
      • 2.Qe3#
    • 1...Be2
      • 2.Qe3#
    • 1...Bg2
      • 2.Qe3#
    • 1...Bg4
      • 2.Qe3#
    • 1...Bh5
      • 2.Qe3#
  • Keys
    • 1.Qf5!
      • threat
        • 2.Qd5#
      • 1...Qxc6
        • 2.Sxc6#
      • 1...Rxd6
        • 2.Qe5#
      • 1...Rxf5
        • 2.Sxf5#
      • 1...Bxc5
        • 2.Qxc5#
      • 1...Re5
        • 2.Qxe5#
      • 1...e3
        • 2.Sxf3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 8
  • Sets
    • Q(h);XP(G)::S(I),XQ(h)
    • R(f);N_GUARD::S(E),XR(f)
    • R(f);N_GUARD::S(E)
    • B(b);OGATE::QAB1(C)
  • Actual
    • Q(C);
    • Threat
      • QAR1(C)
    • Vars
      • Q(h);XP(G)::S(I),XQ(h)
      • R(e);N_GUARD,XP(H)::QAB1(C)
      • R(f);XQ(C)::S(E),XR(f)
      • B(g);OGATE,XR(F)::QAB1(C),XB(g)
      • R(e);N_GUARD::QAB1(C),XR(e)
      • P(d);N_GUARD::S(E),XB(b)
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