MESON Chess Problem Database

Problem Display
PID: 168151 (5K2/bp4Bp/3pbR2/3pkNnN/8/2P2rrp/3n3Q/7B w - - 0 1)

Chicco, Adriano

La Settimana Enigmistica, 1932

(First published on Sat Feb 20 1932)

5K2/bp4Bp/3pbR2/3pkNnN/8/2P2rrp/3n3Q/7B

#2

8 + 12

14868 Pirnie Collection 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Rf1
      • 2.Rf7#
    • 1...Rf2
      • 2.Rf7#
    • 1...Rxc3
      • 2.Rf7#
    • 1...Rd3
      • 2.Rf7#
    • 1...Re3
      • 2.Rf7#
    • 1...Rf4
      • 2.Rf7#
  • Tries
    • 1.Qxg3+?
      • 1...Rxg3
        • 2.Rf7#
      • 1...Rf4
        • 2.Rf7#
        • 2.Qxf4#
      • 1...Ke4!
  • Keys
    • 1.Sd4!
      • threat
        • 2.Rf4#
      • 1...Rxf6+
        • 2.Bxf6#
      • 1...Ke4
        • 2.Qe2#
      • 1...Rf4
        • 2.Rxf4#
        • 2.Rf5#
      • 1...Rf5
        • 2.Rxf5#
      • 1...Bf5
        • 2.Re6#
      • 1...Sde4
        • 2.Rf5#
      • 1...Sge4
        • 2.Rf5#
      • 1...Sf7
        • 2.Rxe6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 6
  • Sets
    • R(b);::B(G)+R(F)
    • R(b);XP(C)::B(G)+R(F)
    • R(b);N_SPINR(c)::B(G)+R(F)
  • Tries
    • Try
      • Q(B);CHECK,XR(c)
      • Vars
        • R(b);XQ(B)::B(G)+R(F)
      • Refutation
        • K(f);P-FLIGHT,P_SPINR(b)
  • Actual
    • S(D);P_SPINR(F)
    • Threat
      • B(G)+R(F)
    • Vars
      • R(b);CHECK,OGATE,XR(F)::B(G),XR(b)
      • K(f);N_SPINR(c),P-FLIGHT,P_SPINR(b)::QAR2(B)
      • R(b);::B(G)+R(F),DCHECK,XR(b)
      • B(i);N_PINR(F)::B(G)+R(F),DCHECK
      • S(a);SBLOCK::B(G)+R(F),DCHECK
      • S(g);SBLOCK::B(G)+R(F),DCHECK
      • S(g);N_PINR(F)::B(G)+R(F),DCHECK,XB(i)
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