MESON Chess Problem Database

Problem Display
PID: 253302 (b7/4p3/1p2rp2/1Rb2N1p/1p1pk2P/1P1N3p/3K4/3B2Q1 w - - 0 1)

Pine, Harry

The Field, 1910

(First published on Sat May 28 1910)

b7/4p3/1p2rp2/1Rb2N1p/1p1pk2P/1P1N3p/3K4/3B2Q1

#2

8 + 11

15239 Valois Notebooks 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Bd6
      • 2.Qxd4#
      • 2.Qe1#
      • 2.Qh1#
    • 1...Bd5
      • 2.Sg3#
  • Tries
    • 1.Sxd4?
      • threat
        • 2.Bf3#
      • 1...Bxd4
        • 2.Qh1#
      • 1...Kd5!
    • 1.Rxc5?
      • threat
        • 2.Sg3#
        • 2.Qxd4#
        • 2.Qe1#
        • 2.Qh1#
      • 1...Re5
        • 2.Sg3#
      • 1...Bd5
        • 2.Sg3#
      • 1...Rd6
        • 2.Sg3#
        • 2.Qe1#
        • 2.Qh1#
      • 1...bxc5!
    • 1.Qxd4+?
      • 1...Bxd4
        • 2.Sg3#
      • 1...Kxf5!
    • 1.Qe1+?
      • 1...Kd5
        • 2.Sxb4#
      • 1...Kxf5!
  • Keys
    • 1.Qg8!
      • threat
        • 2.Qxe6#
      • 1...Kd5
        • 2.Bf3#
      • 1...Kxf5
        • 2.Qh7#
      • 1...Re5
        • 2.Sg3#
      • 1...Rc6
        • 2.Sg3#
      • 1...Rd6
        • 2.Sg3#
      • 1...Bd6
        • 2.Qxa8#
      • 1...Bd5
        • 2.Sg3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
    • B(k);SBLOCK::S(H)
  • Tries
    • Try
      • S(H);XP(c)
      • Threat
        • B(A)
      • Vars
        • B(e);SBLOCK,XS(H)::QAB(B)
      • Refutation
        • K(d);P_SPINB(e),S_FLIGHT
    • Try
      • R(G);XB(e)
      • Threat
        • DUALS(4)
      • Vars
        • R(h);::S(H)
        • B(k);::S(H)
      • Refutation
        • P(g);XR(G)
    • Try
      • Q(B);CHECK,XP(c)
      • Vars
        • B(e);SBLOCK,XQ(B)::S(H)
      • Refutation
        • K(d);P_SPINB(e),S_FLIGHT,XS(H)
    • Try
      • Q(B);CHECK
      • Vars
        • K(d);N_GUARD,P_SPINB(e),S_FLIGHT::S(E),XP(b)
      • Refutation
        • K(d);P_SPINB(e),S_FLIGHT,XS(H)
  • Actual
    • Q(B);
    • Threat
      • QAR2(B),XR(h)
    • Vars
      • K(d);N_GUARD,P_SPINB(e),P_SPINR(h),S_FLIGHT::B(A)
      • K(d);OGATEB,P_SPINB(e),S_FLIGHT,XS(H)::QAB(B)
      • R(h);::S(H)
      • B(e);S_CUTR(h)::QAB(B),XB(k)
      • B(k);SBLOCK::S(H)
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