MESON Chess Problem Database

Problem Display
PID: 37061 (4q3/7n/4ppR1/1r2N1nK/3QPk1B/1p1B2p1/p3P1pr/3b2NR w - - 0 1)

Schor, Laszlo

Recomm., BCF 010. Ty., 1932-1933

4q3/7n/4ppR1/1r2N1nK/3QPk1B/1p1B2p1/p3P1pr/3b2NR

#2

10 + 13

5454 Near Snap 2010

SOLUTION

  • SOUND
  • Sets
    • 1...Qxg6+
      • 2.Sxg6#
    • 1...Rxh4+
      • 2.Rxh4#
    • 1...Bc2
      • 2.e3#
    • 1...Bxe2+
      • 2.Sxe2#
    • 1...Sf3
      • 2.e3#
    • 1...Sh3
      • 2.Bxg3#
    • 1...Sxe4
      • 2.Qxe4#
    • 1...Sf7
      • 2.Rg4#
  • Tries
    • 1.Sh3+?
      • 1...Sxh3
        • 2.Bxg3#
      • 1...Rxh3!
  • Keys
    • 1.Bc2!
      • threat
        • 2.Sd3#
      • 1...Qxg6+
        • 2.Sxg6#
      • 1...Rxh4+
        • 2.Rxh4#
      • 1...Bxe2+
        • 2.Sxe2#
      • 1...Rxe5
        • 2.Qd2#
      • 1...Bxc2
        • 2.e3#
      • 1...Sxe4
        • 2.Qxe4#
      • 1...fxe5
        • 2.Qd2#
      • 1...Sf3
        • 2.e3#
      • 1...Sh3
        • 2.Bxg3#
      • 1...Sf7
        • 2.Rg4#

This anticipates 74852(1938)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • Q(m);CHECK,XR(J)::S(H),XQ(m)
    • R(d);CHECK,XB(G)::R(B),XR(d)
    • B(a);N_PINP(C)::P(C)
    • B(a);CHECK,XP(C)::S(A),XB(a)
    • S(i);N_PINP(C),P_PINS(H)::P(C)
    • S(i);N_PINB(G),P_PINS(H)::B(G),XP(f)
    • S(i);OGATE,P_PINS(H),P_SPINS(i),XP(F)::QAR1(E),XS(i)
    • S(i);N_PINR(J),P_PINS(H)::R1(J)
  • Tries
    • Try
      • S(A);CHECK,N_SPINB(G)
      • Vars
        • S(i);P_PINS(H),XS(A)::B(G),XP(f)
      • Refutation
        • R(d);P_PINB(G),XS(A)
  • Actual
    • B(D);
    • Threat
      • S(H)
    • Vars
      • Q(m);CHECK,XR(J)::S(H),XQ(m)
      • R(d);CHECK,XB(G)::R(B),XR(d)
      • B(a);CHECK,XP(C)::S(A),XB(a)
      • R(h);SBLOCK,XS(H)::QAB(E)
      • B(a);N_PINP(C),XB(D)::P(C)
      • S(i);OGATE,P_PINS(H),P_SPINS(i),XP(F)::QAR1(E),XS(i)
      • P(k);SBLOCK,XS(H)::QAB(E)
      • S(i);N_PINP(C),P_PINS(H)::P(C)
      • S(i);N_PINB(G),P_PINS(H)::B(G),XP(f)
      • S(i);N_PINR(J),P_PINS(H)::R1(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).