MESON Chess Problem Database

Problem Display
PID: 268391 (6B1/1N6/Kp3p2/1N1p2p1/Q2PkbqR/R3p1p1/6P1/1b6 w - - 0 1)

Chicco, Adriano

La Settimana Enigmistica, 1932

6B1/1N6/Kp3p2/1N1p2p1/Q2PkbqR/R3p1p1/6P1/1b6

#2

9 + 10

15601 Albrecht-Leiss-Degener Collection 2023

SOLUTION

  • SOUND
  • Sets
    • 1...Qd1
      • 2.S5d6#
      • 2.S7d6#
    • 1...Qe2
      • 2.Sd6#
    • 1...Qf3
      • 2.S5d6#
      • 2.S7d6#
    • 1...Qh3
      • 2.S5d6#
      • 2.S7d6#
    • 1...Qf5
      • 2.S5d6#
      • 2.S7d6#
    • 1...Qh5
      • 2.S5d6#
      • 2.S7d6#
    • 1...Qc8
      • 2.Sd6#
    • 1...Ba2
      • 2.Qc2#
    • 1...Bc2
      • 2.Qxc2#
  • Tries
    • 1.Sc5+?
      • 1...Kf5
        • 2.Bh7#
      • 1...bxc5!
    • 1.Bh7+?
      • 1...Qf5
        • 2.S5d6#
        • 2.S7d6#
      • 1...f5!
    • 1.Rxg4?
      • threat
        • 2.S5d6#
        • 2.S7d6#
      • 1...Bd3
        • 2.Sd6#
      • 1...Kf5!
  • Keys
    • 1.Qd1!
      • threat
        • 2.Qxb1#
      • 1...Kf5
        • 2.Qxb1#
      • 1...Qxd1
        • 2.S7d6#
      • 1...Be5
        • 2.Qf3#
      • 1...Bd6
        • 2.Qf3#
      • 1...Bc7
        • 2.Qf3#
      • 1...Bb8
        • 2.Qf3#
      • 1...Qe2
        • 2.Sd6#
      • 1...Qc8
        • 2.Sd6#
      • 1...Ba2
        • 2.Qc2#
        • 2.Qd3#
      • 1...Bc2
        • 2.Qxc2#
      • 1...Bd3
        • 2.Qxd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 1
  • Sets
    • Q(f);P_PINS(F),P_SPINB(e)::S(H)
    • Q(f);P_PINS(H),P_SPINB(e)::S(F)
    • B(a);N_GUARD::QAB(C)
    • B(a);N_GUARD::QAB(C),XB(a)
  • Tries
    • Try
      • S(H);CHECK
      • Vars
        • K(d);S_FLIGHT::B(I)
      • Refutation
        • P(i);XS(H)
    • Try
      • B(I);CHECK
      • Refutation
        • P(j);P_SPINP(j)
    • Try
      • R(E);P_PINB(e),XQ(f)
      • Threat
        • DUALS(2)
      • Vars
        • B(a);P_PINS(F)::S(H)
      • Refutation
        • K(d);N_SPINB(e),S_FLIGHT
  • Actual
    • Q(C);
    • Threat
      • QAB(C),XB(a)
    • Vars
      • K(d);S_FLIGHT::QAB(C),XB(a)
      • Q(f);P_SPINB(e),XQ(C)::S(H)
      • B(e);P_SPINQ(f)::QAB1(C)
      • Q(f);P_PINS(F),P_SPINB(e)::S(H)
      • Q(f);P_PINS(H),P_SPINB(e)::S(F)
      • B(a);N_GUARD::QAB(C),XB(a)
      • B(a);N_GUARD,P_PINS(F)::QAB1(C),XB(a)
HTML5 logo

Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).