MESON Chess Problem Database

Problem Display
PID: 203324 (bb5K/3Qp2N/7B/1Rn1k3/p7/qpP5/4PNn1/4r3 w - - 0 1)

Nield, Joshua

1st Prize, Daily News, 1924

bb5K/3Qp2N/7B/1Rn1k3/p7/qpP5/4PNn1/4r3

#2

8 + 10

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Be4
      • 2.Sg4#
    • 1...Sf4
      • 2.Bg7#
  • Tries
    • 1.Rxc5+?
      • 1...Bd5
        • 2.Rxd5#
        • 2.Qxd5#
      • 1...Qxc5!
    • 1.Qxe7+?
      • 1...Kf5
        • 2.Qf6#
      • 1...Kd5!
  • Keys
    • 1.e4!
      • threat
        • 2.Qxe7#
      • 1...Rxe4
        • 2.Sd3#
      • 1...Bxe4
        • 2.Sg4#
      • 1...Bd5
        • 2.Qxd5#
      • 1...Bd6
        • 2.Qf5#
      • 1...Sf4
        • 2.Bg7#
      • 1...e6
        • 2.Qd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • B(i);SBLOCK::S(B)
    • S(b);SBLOCK::B(E)
  • Tries
    • Try
      • R(D);CHECK,XS(f)
      • Refutation
        • Q(c);XR(D)
    • Try
      • Q(F);CHECK,XP(h)
      • Vars
        • K(g);P-FLIGHT::QAR1(F)
      • Refutation
        • K(g);P-FLIGHT
  • Actual
    • P(A);
    • Threat
      • QAR2(F),XP(h)
    • Vars
      • R(a);SBLOCK,XP(A)::S(B)
      • B(i);SBLOCK,XP(A)::S(B)
      • B(i);N_GUARD,N_SPINS(f)::QAR1(F),XB(i)
      • B(j);SBLOCK::QAR1(F)
      • S(b);SBLOCK::B(E)
      • P(h);SBLOCK::QAB1(F)
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Developed and maintained by Brian Stephenson.
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