MESON Chess Problem Database

Problem Display
PID: 258181 (8/8/2p1Qp1K/2P1np2/4k1pR/2p1N3/2P2PP1/6B1 w - - 0 1)

Taylor, Jesse Paul

English Mechanic and World of Science, 1890

(First published on Fri May 16 1890)

8/8/2p1Qp1K/2P1np2/4k1pR/2p1N3/2P2PP1/6B1

#2

9 + 7

15239 Valois Notebooks 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Kf4
      • 2.Qxf5#
  • Tries
    • 1.Qd5+?
      • 1...Kf4
        • 2.Bh2#
        • 2.Qd4#
        • 2.g3#
      • 1...cxd5!
    • 1.Qxc6+?
      • 1...Kd4
        • 2.Qd5#
      • 1...Kf4
        • 2.Bh2#
        • 2.g3#
      • 1...Sxc6!
    • 1.f3+?
      • 1...Kd4
        • 2.Sd1#
        • 2.Sf1#
        • 2.Sc4#
        • 2.Sxg4#
        • 2.Sxf5#
        • 2.Qd6#
      • 1...Kf4!
  • Keys
    • 1.Sxg4!
      • threat
        • 2.Sxf6#
      • 1...Kd4
        • 2.f3#
      • 1...Kf4
        • 2.Sxe5#
      • 1...fxg4
        • 2.Rxg4#
      • 1...f4
        • 2.f3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(b);N_GUARD,N_SPINS(d),P-FLIGHT::QAR1(H),XP(e)
  • Tries
    • Try
      • Q(H);CHECK,N_PINS(d)
      • Refutation
        • P(f);XQ(H)
    • Try
      • Q(H);CHECK,N_PINS(d),XP(f)
      • Vars
        • K(b);N_GUARD,P-FLIGHT::QAR1(H)
      • Refutation
        • S(d);XQ(H)
    • Try
      • P(C);CHECK
      • Refutation
        • K(b);N_SPINS(d),P-FLIGHT
  • Actual
    • S(E);XP(c)
    • Threat
      • R(F)+S(E),DCHECK,XP(g)
    • Vars
      • K(b);N_GUARD,N_SPINS(d),P-FLIGHT::B(A)+P(C)
      • K(b);N_SPINS(d),P-FLIGHT,S_CUTP(e)::R(F)+S(E),XS(d)
      • P(e);OGATE,P_SPINP(e),XS(E)::R(F),XP(e)
      • P(e);SBLOCK::P(C)
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