MESON Chess Problem Database

Problem Display
PID: 146018 (2KR4/1Q1NB3/2N5/1P1k1bR1/4p3/1pr1P3/4B3/8 w - - 0 1)

Boswell, Edward

Eddy, Edwin John

Grantham Journal, 1927

(First published on Thu Feb 17 1927)

2KR4/1Q1NB3/2N5/1P1k1bR1/4p3/1pr1P3/4B3/8

#2

10 + 5

5454 Near Snap 2012
14868 Pirnie Collection 2012

SOLUTION

  • SOUND
  • Sets
    • 1...Rxc6+
      • 2.Qxc6#
  • Tries
    • 1.Bc4+?
      • 1...Kxc4
        • 2.Se5#
      • 1...Rxc4!
    • 1.Rg6?
      • threat
        • 2.Rd6#
      • 1...Rxc6+
        • 2.Qxc6#
      • 1...Bxd7+
        • 2.Rxd7#
        • 2.Qxd7#
      • 1...Bxg6
        • 2.Sc5#
        • 2.Sf8#
      • 1...Rd3
        • 2.Sa5#
        • 2.Se5#
      • 1...Be6!
  • Keys
    • 1.Bh5!
      • threat
        • 2.Bf7#
      • 1...Rxc6+
        • 2.Qxc6#
      • 1...Kc4
        • 2.Se5#
      • 1...Ke6
        • 2.Sf8#

This anticipates 146017(1933)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • R(b);CHECK,OGATE,P_PINS(G),P_SPINR(b),XS(E)::QAB1(F),XR(b)
  • Tries
    • Try
      • B(A);CHECK,N_SPINS(E),P_SPINS(G)
      • Vars
        • K(d);N_SPINB(e),S_FLIGHT,XB(A)::S(E)
      • Refutation
        • R(b);N_PINS(G),P_PINS(E),XB(A)
    • Try
      • R(D);N_PINB(e)
      • Threat
        • R1(D)
      • Vars
        • R(b);CHECK,OGATE,P_PINS(G),P_SPINR(b),XS(E)::QAB1(F),XR(b)
      • Refutation
        • B(e);
  • Actual
    • B(A);
    • Threat
      • B(A)
    • Vars
      • R(b);CHECK,OGATE,P_PINS(G),P_SPINR(b),XS(E)::QAB1(F),XR(b)
      • K(d);N_PINS(E),N_SPINB(e),P_PINS(G),S_FLIGHT::S(E)
      • K(d);N_SPINB(e),S_FLIGHT::S(G)
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