MESON Chess Problem Database

Problem Display
PID: 250124 (2NBn2R/Qq3k1p/b2pp2P/1p6/1P3p1N/5B1p/7P/7K w - - 0 1)

Wrobel, Marian

Sahovski Glasnik, 1927

2NBn2R/Qq3k1p/b2pp2P/1p6/1P3p1N/5B1p/7P/7K

#2

10 + 10

6490 yacpdb 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Qxa7
      • 2.Bh5#
    • 1...Qc7
      • 2.Bh5#
    • 1...Qd7
      • 2.Bh5#
      • 2.Qxd7#
    • 1...Qe7
      • 2.Qxe7#
    • 1...Sf6
      • 2.Sxd6#
    • 1...Sc7
      • 2.Sxd6#
    • 1...Sg7
      • 2.Sxd6#
    • 1...d5
      • 2.Bh5#
    • 1...e5
      • 2.Bd5#
  • Tries
    • 1.Kg1?
      • threat
        • 2.Bh5#
      • 1...Qe7
        • 2.Qxe7#
      • 1...e5
        • 2.Bd5#
      • 1...Sf6
        • 2.Sxd6#
      • 1...Sg7
        • 2.Sxd6#
      • 1...Qxa7+!
    • 1.Bg5?
      • 1...Qxa7
        • 2.Bh5#
      • 1...e5
        • 2.Bd5#
      • 1...Qc7
        • 2.Bh5#
      • 1...Qd7
        • 2.Bh5#
        • 2.Qxd7#
      • 1...Qe7
        • 2.Bh5#
        • 2.Qxe7#
      • 1...Sc7
        • 2.Sxd6#
      • 1...Sg7
        • 2.Sxd6#
      • 1...d5
        • 2.Bh5#
      • 1...Sf6!
    • 1.Rxe8?
      • threat
        • 2.Sxd6#
      • 1...Qe7
        • 2.Qxe7#
      • 1...d5
        • 2.Sd6#
        • 2.Bh5#
      • 1...Kxe8!
    • 1.Qxb7+?
      • 1...Sc7
        • 2.Sxd6#
        • 2.Bh5#
        • 2.Qxc7#
      • 1...Bxb7!
  • Keys
    • 1.Bc6!
      • 1...Qxa7
        • 2.Bxe8#
      • 1...Qe7
        • 2.Qxe7#
      • 1...e5
        • 2.Bd5#
      • 1...Qc7
        • 2.Bxe8#
      • 1...Qd7
        • 2.Qxd7#
      • 1...Sf6
        • 2.Sxd6#
      • 1...Sc7
        • 2.Sxd6#
      • 1...Sg7
        • 2.Sxd6#
      • 1...f3
        • 2.Bxe8#
      • 1...d5
        • 2.Bxe8#

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 3
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • Q(g);N_PINB(C),N_SPINQ(g),XQ(G)::B(C)
    • Q(g);N_PINB(C)::B(C)
    • Q(g);N_PINB(C),OGATE::QAR1(G),XQ(g)
    • S(j);N_GUARD::S(H),XP(e)
    • S(j);N_GUARD,N_SPINQ(g)::S(H),XP(e)
    • P(e);N_PINB(C)::B(C)
    • P(f);::B(C)
  • Tries
    • Try
      • K(A);N_SPINB(C),P-FLIGHT
      • Threat
        • B(C)
      • Vars
        • Q(g);OGATE::QAR1(G),XQ(g)
        • P(f);OGATEB::B(C)
        • S(j);N_GUARD::S(H),XP(e)
      • Refutation
        • Q(g);CHECK,N_SPINQ(g),XQ(G)
    • Try
      • B(I);
      • Vars
        • Q(g);N_PINB(C),N_SPINQ(g),XQ(G)::B(C)
        • P(f);::B(C)
        • Q(g);N_PINB(C)::B(C)
        • S(j);N_GUARD,N_SPINQ(g)::S(H),XP(e)
        • S(j);N_GUARD::S(H),XP(e)
        • P(e);N_PINB(C)::B(C)
      • Refutation
        • S(j);
    • Try
      • R(J);XS(j)
      • Threat
        • S(H),XP(e)
      • Vars
        • Q(g);N_PINB(C),OGATE::QAR1(G),XQ(g)
      • Refutation
        • K(h);N_SPINQ(g),S_FLIGHT,XR(J)
    • Try
      • Q(G);CHECK,N_SPINB(C),XQ(g)
      • Refutation
        • B(d);P_PINB(C),XQ(G)
  • Actual
    • B(C);
    • Vars
      • Q(g);N_PINB(C),N_SPINQ(g),XQ(G)::B(C),XS(j)
      • Q(g);N_PINB(C),OGATE::QAR1(G),XQ(g)
      • P(f);::B(C)
      • Q(g);N_PINB(C)::B(C),XS(j)
      • Q(g);N_PINB(C),OGATE::QAR2(G),XQ(g)
      • S(j);N_GUARD::S(H),XP(e)
      • S(j);N_GUARD,N_SPINQ(g)::S(H),XP(e)
      • P(b);N_PINB(C)::B(C),XS(j)
      • P(e);N_PINB(C)::B(C),XS(j)
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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).