MESON Chess Problem Database

Problem Display
PID: 152766 (b2B4/8/1K1QR3/1pp1pk2/R1q1Np2/1p6/2n4N/b7 w - - 0 1)

Nield, Joshua

Good Companions (December), 1915

b2B4/8/1K1QR3/1pp1pk2/R1q1Np2/1p6/2n4N/b7

#2

7 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Qf1
      • 2.Rf6#
    • 1...Qe2
      • 2.Rf6#
    • 1...Qd3
      • 2.Rf6#
    • 1...Qd5
      • 2.Rf6#
    • 1...Qc3
      • 2.Rf6#
    • 1...Sd4
      • 2.Rxe5#
      • 2.Qxe5#
    • 1...b2
      • 2.Rxe5#
      • 2.Qxe5#
  • Tries
    • 1.Sg5?
      • threat
        • 2.Qf8#
      • 1...Qxe6
        • 2.Qxe6#
      • 1...e4!
  • Keys
    • 1.Qd3!
      • threat
        • 2.Rf6#
      • 1...Qxe6+
        • 2.Sd6#
      • 1...Kxe6
        • 2.Sg5#
      • 1...Qxe4
        • 2.Qh3#
      • 1...Bxe4
        • 2.Qh3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 5
  • Sets
    • Q(d);::R1(F)
  • Tries
    • Try
      • S(C);
      • Threat
        • QAR(E)
      • Vars
        • Q(d);OGATE,P_PINQ(E),XR(F)::QAB1(E),XQ(d)
      • Refutation
        • P(h);
  • Actual
    • Q(E);
    • Threat
      • R1(F)
    • Vars
      • Q(d);CHECK,SBLOCK,XR(F)::QAB(E)+S(C),DCHECK
      • K(i);S_FLIGHT,XR(F)::S(C)
      • Q(d);P_SPINQ(d),XS(C)::QAB(E)
      • B(j);P_SPINB(j),SBLOCK,XS(C)::QAB(E)
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