MESON Chess Problem Database

Problem Display
PID: 151349 (5Q2/2rR3B/3pp3/1P1kb3/N7/1n3P2/2Np3B/3K4 w - - 0 1)

Rayner, James

Pen & Pencil, 1888

(First published on Sat Feb 25 1888)

5Q2/2rR3B/3pp3/1P1kb3/N7/1n3P2/2Np3B/3K4

#2

9 + 7

15239 Valois Notebooks 2014

SOLUTION

  • SOUND
  • Sets
    • 1...Rc5
      • 2.Sb6#
    • 1...Sd4
      • 2.Se3#
    • 1...Sc5
      • 2.Sb6#
  • Tries
    • 1.Rxd6+?
      • 1...Kc4
        • 2.Bd3#
      • 1...Bxd6!
    • 1.Qxd6+?
      • 1...Kc4
        • 2.Sa3#
        • 2.Bd3#
        • 2.Qb4#
        • 2.Qd3#
      • 1...Bxd6!
  • Keys
    • 1.Qf5!
      • threat
        • 2.Qe4#
      • 1...Kc4
        • 2.Qd3#
      • 1...exf5
        • 2.Bg8#
      • 1...Rc4
        • 2.Qxe5#
      • 1...Sd4
        • 2.Se3#
      • 1...Sc5
        • 2.Sb6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • R(g);SBLOCK::S(E)
    • S(b);SBLOCK::S(B)
    • S(b);SBLOCK::S(E)
  • Tries
    • Try
      • R(G);CHECK,XP(e)
      • Vars
        • K(c);S_FLIGHT::B(H)
      • Refutation
        • B(d);XR(G)
    • Try
      • Q(I);CHECK,XP(e)
      • Refutation
        • B(d);P_SPINB(d),XQ(I)
  • Actual
    • Q(I);P_PINB(d)
    • Threat
      • QAB1(I)
    • Vars
      • K(c);N_SPINB(d),N_SPINP(e),S_FLIGHT::QAB1(I)
      • P(f);N_SPINB(d),OGATEB,XQ(I)::B(H)
      • R(g);SBLOCK::QAR1(I),XB(d)
      • S(b);SBLOCK::S(B)
      • S(b);SBLOCK::S(E)
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