MESON Chess Problem Database

Problem Display
PID: 140380 (2NR3B/KQ4nq/P1B4r/7r/p1k1N2p/2p2R2/P4p2/4b3 w - - 0 1)

Peris Pardo, Julio

3rd Comm., BCPS 049. Ty., 1943

2NR3B/KQ4nq/P1B4r/7r/p1k1N2p/2p2R2/P4p2/4b3

#2

10 + 10

56 The Problemist 1943

SOLUTION

  • SOUND
  • Sets
    • 1...Rb5
      • 2.Qxb5#
    • 1...Sf5
      • 2.Bd5#
    • 1...Se6
      • 2.Scd6#
    • 1...Se8
      • 2.Rd4#
    • 1...a3
      • 2.Qb3#
  • Tries
    • 1.Rd5?
      • threat
        • 2.Qb5#
      • 1...Sf5
        • 2.Rc5#
      • 1...Se6
        • 2.Sed6#
        • 2.Scd6#
      • 1...Se8
        • 2.Rd4#
      • 1...Rxd5!
  • Keys
    • 1.a3!
      • threat
        • 2.Qb4#
      • 1...Rb5
        • 2.Qxb5#
      • 1...Sf5
        • 2.Bd5#
      • 1...Se6
        • 2.Scd6#
      • 1...Se8
        • 2.Rd4#
      • 1...c2
        • 2.Sb6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • R(g);N_GUARD::QAB1(G),XR(g)
    • S(i);P_PINQ(G),S_CUTR(g)::B(E)
    • S(i);P_PINQ(G),S_CUTR(h)::S(H)
    • S(i);P_PINQ(G)::R1(I)
    • P(d);N_GUARD::QAB1(G)
  • Tries
    • Try
      • R(I);
      • Threat
        • QAB1(G)
      • Vars
        • S(i);P_PINQ(G),S_CUTR(g)::R1(I)
        • S(i);P_PINQ(G)::R1(I)
      • Refutation
        • R(g);XR(I)
  • Actual
    • P(A);
    • Threat
      • QAR1(G)
    • Vars
      • R(g);N_GUARD::QAB1(G),XR(g)
      • S(i);P_PINQ(G),S_CUTR(g)::B(E)
      • S(i);P_PINQ(G),S_CUTR(h)::S(H)
      • S(i);P_PINQ(G)::R1(I)
      • P(c);::S(H)
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).