MESON Chess Problem Database

Problem Display
PID: 18407 (1b3Q2/3pr3/1r1k4/3PN3/1PR1K3/2B5/8/8 w - - 0 1)

Rendall, JL

The Field, 1955

(First published on Thu Sep 8 1955)

1b3Q2/3pr3/1r1k4/3PN3/1PR1K3/2B5/8/8

#2

7 + 5

3310 2345 Chess Problems 1997

SOLUTION

  • SOUND
  • Sets
    • 1...Rxb4
      • 2.Bxb4#
    • 1...Ra6
      • 2.Qxb8#
  • Keys
    • 1.Qd8!
      • threat
        • 2.Qxb6#
      • 1...Rxe5+
        • 2.Bxe5#
      • 1...Rxb4
        • 2.Bxb4#
      • 1...Rb5
        • 2.Rc6#
      • 1...Ra6
        • 2.Qxb8#
      • 1...Rc6
        • 2.Rxc6#
      • 1...Rb7
        • 2.Rc6#
      • 1...Re6
        • 2.Qxd7#
      • 1...Rf7
        • 2.Sxf7#
      • 1...Rg7
        • 2.Qf6#
      • 1...Rh7
        • 2.Qf6#
      • 1...Re8
        • 2.Qxd7#
      • 1...Ba7
        • 2.Qc7#
      • 1...Bc7
        • 2.Qxc7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 11
    • REMOVED MATES = 0
  • Sets
    • R(a);OGATE,P_PINR(C),XP(B)::B(A),XR(a)
    • R(a);N_GUARD::QAB(G),XB(e)
  • Actual
    • Q(G);N_PINR(d),P_PINP(c)
    • Threat
      • QAR2(G),XR(a)
    • Vars
      • R(d);CHECK,OGATE,XS(F)::B(A),XR(d)
      • R(a);OGATE,P_PINR(C),XP(B)::B(A),XR(a)
      • R(a);N_GUARD::R1(C)
      • R(a);N_GUARD::QAB(G),XB(e)
      • R(a);N_GUARD::R1(C),XR(a)
      • R(d);N_GUARD::QAR1(G),XP(c)
      • R(d);N_PINS(F)::S(F),XR(d)
      • R(d);N_PINS(F),OGATE::QAR2(G)
      • B(e);N_GUARD::QAB1(G)
      • B(e);N_GUARD::QAB1(G),XB(e)
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