MESON Chess Problem Database

Problem Display
PID: 207313 (BQ6/1r1pbR2/3pp3/1R2p3/nKN1kp2/1p6/3PP3/4q1B1 w - - 0 1)

Arguelles Ferrer, Antonio Fernandez

Peris Pardo, Julio

Il Problema, 1932

BQ6/1r1pbR2/3pp3/1R2p3/nKN1kp2/1p6/3PP3/4q1B1

#2

9 + 11

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Qxd2+
      • 2.Sxd2#
    • 1...Qh4
      • 2.d3#
    • 1...Qa1
      • 2.d3#
    • 1...Qc1
      • 2.d3#
    • 1...Qf1
      • 2.d3#
    • 1...Bh4
      • 2.Sxd6#
    • 1...Bg5
      • 2.Sxd6#
    • 1...Bf6
      • 2.Sxd6#
    • 1...Bd8
      • 2.Sxd6#
    • 1...Sc3
      • 2.d3#
  • Keys
    • 1.Qxd6!
      • threat
        • 2.Bxb7#
      • 1...Qxd2+
        • 2.Sxd2#
      • 1...Bxd6+
        • 2.Sxd6#
      • 1...Bf6
        • 2.Qd3#
      • 1...Sc3
        • 2.d3#
      • 1...Sc5
        • 2.Qxe5#
      • 1...Sb6
        • 2.Rxe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 7
  • Sets
    • Q(a);CHECK,XP(B)::S(E),XQ(a)
    • Q(a);N_PINP(B)::P(B)
    • B(k);N_GUARD::S(E),XP(g)
    • S(c);N_PINP(B)::P(B)
  • Actual
    • Q(I);P_SPINQ(I),XP(g)
    • Threat
      • B(H),XR(i)
    • Vars
      • Q(a);CHECK,XP(B)::S(E),XQ(a)
      • B(k);CHECK,XQ(I)::S(E),XB(k)
      • B(k);N_PINQ(I)::QAB1(I)
      • S(c);N_PINP(B)::P(B)
      • S(c);N_PINQ(I)::QAR1(I),XP(f)
      • S(c);N_PINR(F)::R1(F),XP(f)
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