MESON Chess Problem Database

Problem Display
PID: 229599 (3K4/3pQ2b/3P1p2/3r1k1r/5N2/5PP1/8/8 w - - 0 1)

Nield, Joshua

Southend Times, 1937

(First published on Wed Feb 24 1937)

3K4/3pQ2b/3P1p2/3r1k1r/5N2/5PP1/8/8

#2

6 + 6

15239 Valois Notebooks 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Rg5
      • 2.Qe4#
  • Tries
    • 1.Sxd5?
      • threat
        • 2.Qxf6#
      • 1...Kg5
        • 2.Qxf6#
      • 1...Kg6
        • 2.Qxf6#
      • 1...Rh6!
  • Keys
    • 1.Qf7!
      • threat
        • 2.Qxd5#
        • 2.Qxh5#
      • 1...Ke5
        • 2.Qxd5#
      • 1...Kg5
        • 2.Qxh5#
      • 1...Rxd6
        • 2.Qxh5#
      • 1...Rd1
        • 2.Qxh5#
      • 1...Rd2
        • 2.Qxh5#
      • 1...Rd3
        • 2.Qxh5#
      • 1...Rd4
        • 2.Qxh5#
      • 1...Ra5
        • 2.Qxh5#
      • 1...Rb5
        • 2.Qxh5#
      • 1...Rc5
        • 2.Qxh5#
      • 1...Re5
        • 2.Qxh5#
      • 1...Rh1
        • 2.Qxd5#
      • 1...Rh2
        • 2.Qxd5#
      • 1...Rh3
        • 2.Qxd5#
      • 1...Rh4
        • 2.Qxd5#
      • 1...Rg5
        • 2.Qxd5#
      • 1...Rh6
        • 2.Qxd5#
      • 1...Bg6
        • 2.Qxd5#
      • 1...Bg8
        • 2.Qxh5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 18
    • REMOVED MATES = 0
  • Sets
    • R(c);SBLOCK::QAB1(E)
  • Tries
    • Try
      • S(C);XR(a)
      • Threat
        • QAR1(E),XP(d)
      • Vars
        • K(b);P-FLIGHT,P_SPINP(d)::QAB1(E),XP(d)
        • K(b);S_FLIGHT::QAR1(E),XP(d)
      • Refutation
        • R(c);
  • Actual
    • Q(E);P_PINP(d)
    • Threat
      • DUALS(2)
    • Vars
      • K(b);N_SPINP(d),P-FLIGHT::QAR1(E),XR(a)
      • K(b);N_SPINP(d),P-FLIGHT::QAR1(E),XR(c)
      • R(a);XP(D)::QAR2(E),XR(c)
      • R(a);::QAR2(E),XR(c)
      • R(a);SBLOCK::QAR2(E),XR(c)
      • R(c);::QAR2(E),XR(a)
      • R(c);SBLOCK::QAR2(E),XR(a)
      • B(f);::QAR2(E),XR(a)
      • B(f);::QAR2(E),XR(c)
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