MESON Chess Problem Database

Problem Display
PID: 172132 (2r1R3/1B3p2/8/2rbb2K/6PB/3PN1Pp/R1P2k1N/1Q6 w - - 0 1)

Apro, Laszlo

Skakbladet, 1932

2r1R3/1B3p2/8/2rbb2K/6PB/3PN1Pp/R1P2k1N/1Q6

#2

12 + 7

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Ba1
      • 2.Qf1#
    • 1...Bb2
      • 2.Qf1#
    • 1...Bc3
      • 2.Qf1#
    • 1...Bxg3
      • 2.Qf1#
      • 2.c4#
    • 1...Bd4
      • 2.Qf1#
    • 1...Bf4
      • 2.Qf1#
      • 2.c4#
    • 1...Bd6
      • 2.Qf1#
      • 2.c4#
    • 1...Bf6
      • 2.Qf1#
    • 1...Bc7
      • 2.Qf1#
      • 2.c4#
    • 1...Bg7
      • 2.Qf1#
    • 1...Bb8
      • 2.Qf1#
      • 2.c4#
    • 1...Bh8
      • 2.Qf1#
  • Tries
    • 1.Sxd5?
      • threat
        • 2.Qf1#
        • 2.c3#
      • 1...Ke2
        • 2.c3#
        • 2.c4#
      • 1...Kg2
        • 2.c3#
      • 1...Rxc2
        • 2.Qf1#
      • 1...Rc3
        • 2.Qf1#
      • 1...Ra5
        • 2.Qf1#
      • 1...Rb5
        • 2.Qf1#
      • 1...Ra8
        • 2.Qf1#
      • 1...Ba1
        • 2.Qf1#
      • 1...Bb2
        • 2.Qf1#
      • 1...Bc3
        • 2.Qf1#
      • 1...Bf4
        • 2.Qf1#
      • 1...Rxd5!
    • 1.Ra1?
      • threat
        • 2.Qe1#
      • 1...Ke2
        • 2.Qe1#
      • 1...Bxa1
        • 2.Qf1#
      • 1...Bc3
        • 2.Qf1#
      • 1...Kxe3!
    • 1.c3+?
      • 1...Kxe3
        • 2.Bg5#
      • 1...Bxa2!
    • 1.c4+?
      • 1...Bb2
        • 2.Rxb2#
        • 2.Qf1#
      • 1...Kxe3!
  • Keys
    • 1.Sf5!
      • threat
        • 2.Qf1#
      • 1...Ke2
        • 2.c4#
      • 1...Kg2
        • 2.c3#
      • 1...Bg2
        • 2.c3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 7
  • Sets
    • B(e);::QAR1(A)
  • Tries
    • Try
      • S(F);XB(d)
      • Threat
        • DUALS(2)
      • Vars
        • K(a);P-FLIGHT::R(B)+P(C)
        • R(c);P_SPINR(c),XP(C)::QAR1(A)
        • R(c);::QAR1(A)
        • R(g);::QAR1(A)
        • B(e);P_PINS(F)::QAR1(A)
      • Refutation
        • R(c);XS(F)
    • Try
      • R(B);
      • Threat
        • QAB1(A)
      • Vars
        • K(a);P-FLIGHT::QAR1(A)
        • B(e);XR(B)::QAR1(A)
        • B(e);::QAR1(A)
      • Refutation
        • K(a);P_SPINB(e),S_FLIGHT,XS(F)
    • Try
      • P(C);CHECK
      • Vars
        • K(a);P_SPINB(e),S_FLIGHT,XS(F)::B(I)
      • Refutation
        • B(d);XR(B)
    • Try
      • P(C);CHECK
      • Refutation
        • K(a);P_SPINB(e),S_FLIGHT,XS(F)
  • Actual
    • S(F);
    • Threat
      • QAR1(A)
    • Vars
      • K(a);P-FLIGHT,P_SPINB(e)::R(B)+P(C)
      • K(a);P-FLIGHT,P_SPINB(d)::R(B)+P(C)
      • B(d);N_GUARD::R(B)+P(C)
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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).