MESON Chess Problem Database

Problem Display
PID: 268395 (bRr2b2/pqp5/rn2Q1Kp/2BPPB2/p2R4/1k6/p7/n2NN3 w - - 0 1)

Chicco, Adriano

Prize, Western Morning News, 1931/I

bRr2b2/pqp5/rn2Q1Kp/2BPPB2/p2R4/1k6/p7/n2NN3

#2

10 + 13

15601 Albrecht-Leiss-Degener Collection 2023

SOLUTION

  • SOUND
  • Sets
    • 1...Qc6
      • 2.dxc6#
    • 1...Sc2
      • 2.Bxc2#
    • 1...Sc4
      • 2.Rd3#
    • 1...Sd7
      • 2.d6#
    • 1...a3
      • 2.Rb4#
  • Tries
    • 1.d6+?
      • 1...Sc4
        • 2.Rd3#
        • 2.Qxc4#
      • 1...Sd5
        • 2.Qxd5#
      • 1...Qd5!
  • Keys
    • 1.Be4!
      • threat
        • 2.Qh3#
      • 1...Sxd5
        • 2.Bxd5#
      • 1...Qc6
        • 2.dxc6#
      • 1...Sc2
        • 2.Bxc2#
      • 1...Sc4
        • 2.Rd3#
      • 1...Sd7
        • 2.d6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • Q(i);OGATE,P_PINQ(H),P_SPINS(f)::QAB(H)+P(E),XQ(i)
    • S(a);N_GUARD::B(G),XS(a)
    • S(f);P_PINQ(H),P_SPINQ(i),SBLOCK::R(C)
    • S(f);N_GUARD,P_PINQ(H),P_SPINQ(i)::QAB(H)+P(E)
    • P(d);SBLOCK::R1(C)
  • Tries
    • Try
      • P(E);CHECK
      • Vars
        • S(f);N_GUARD,P_SPINQ(i),P_SPINS(f)::QAB(H),XS(f)
      • Refutation
        • Q(i);P_SPINQ(i),P_SPINS(f)
  • Actual
    • B(G);
    • Threat
      • QAR(H)
    • Vars
      • S(f);OGATE,P_PINQ(H),P_SPINQ(i),P_SPINS(f),XP(E)::B(G),XS(f)
      • Q(i);OGATE,P_PINQ(H),P_SPINS(f)::QAB(H)+P(E),XQ(i)
      • S(a);N_GUARD::B(G),XS(a)
      • S(f);P_PINQ(H),P_SPINQ(i),SBLOCK::R(C)
      • S(f);N_GUARD,P_PINQ(H),P_SPINQ(i)::QAB(H)+P(E)
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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).