MESON Chess Problem Database

Problem Display
PID: 71381 (3q1R2/1N2B3/1pr5/8/k2b2BQ/3n4/1RP2p2/1N3K2 w - - 0 1)

Bouttier, Pierre

L'Independant-Dimanche de Perpignon, 1970

3q1R2/1N2B3/1pr5/8/k2b2BQ/3n4/1RP2p2/1N3K2

#2

9 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Qc7
      • 2.Ra8#
    • 1...Qxe7
      • 2.Ra8#
    • 1...Qd6
      • 2.Ra8#
    • 1...Qd7
      • 2.Ra8#
    • 1...Qa8
      • 2.Rxa8#
    • 1...Sc1
      • 2.Rb4#
    • 1...Se1
      • 2.Rb4#
    • 1...Sb4
      • 2.Rxb4#
    • 1...Sf4
      • 2.Rb4#
    • 1...Se5
      • 2.Rb4#
    • 1...b5
      • 2.Ra2#
  • Keys
    • 1.Bd7!
      • threat
        • 2.Sc3#
      • 1...Qxe7
        • 2.Ra8#
      • 1...Qxd7
        • 2.Ra8#
      • 1...Sb4
        • 2.Rxb4#
      • 1...Sf4
        • 2.Rb4#
      • 1...Sc5
        • 2.Qxd4#
      • 1...b5
        • 2.Ra2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 6
  • Sets
    • Q(g);OGATE::R(I)
    • Q(g);OGATE,XB(H)::R(I)
    • Q(g);OGATE::R(I),XQ(g)
    • S(b);N_GUARD::R1(C)
    • S(b);N_GUARD::R1(C),XS(b)
    • P(e);SBLOCK::R(C)
  • Actual
    • B(E);P_PINB(d),P_PINR(f)
    • Threat
      • S(A)
    • Vars
      • Q(g);OGATE,XB(H)::R(I)
      • Q(g);N_SPINR(f),OGATE,XB(E)::R(I)
      • S(b);N_GUARD,N_SPINB(d)::R1(C),XS(b)
      • S(b);N_GUARD,N_SPINB(d)::R1(C)
      • S(b);N_GUARD::QAR(F),XB(d)
      • P(e);N_SPINR(f),SBLOCK::R(C)
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