MESON Chess Problem Database

Problem Display
PID: 231342 (8/3p2p1/3B2B1/1p1Pr1p1/1Rn2kPb/3pN1pQ/3P1n2/4KRN1 w - - 0 1)

Wrobel, Marian

Shakhmaty, 1927

8/3p2p1/3B2B1/1p1Pr1p1/1Rn2kPb/3pN1pQ/3P1n2/4KRN1

#2

11 + 11

6490 yacpdb 2021

SOLUTION

  • SOUND
  • Sets
    • 1...g2
      • 2.Qf3#
  • Tries
    • 1.Se2+?
      • 1...Kf3
        • 2.Rxf2#
        • 2.Qg2#
      • 1...dxe2!
    • 1.Bc7?
      • 1...g2
        • 2.Qf3#
      • 1...d6!
    • 1.Bb8?
      • 1...g2
        • 2.Qf3#
      • 1...d6!
    • 1.Bxd3?
      • 1...g2
        • 2.Se2#
        • 2.Qf3#
      • 1...g6!
    • 1.Bf5?
      • 1...g2
        • 2.Qf3#
      • 1...g6!
    • 1.Bh7?
      • 1...g2
        • 2.Qf3#
      • 1...g6!
    • 1.Qxh4?
      • 1...g2
        • 2.Rxf2#
        • 2.Qxf2#
        • 2.Qh2#
      • 1...gxh4!
  • Keys
    • 1.Sf3!
      • 1...Kxf3
        • 2.Rxf2#
      • 1...Sxh3
        • 2.Bxe5#
      • 1...Sxg4
        • 2.Qxg4#
      • 1...Sd1
        • 2.Bxe5#
      • 1...Sh1
        • 2.Bxe5#
      • 1...Se4
        • 2.Sg2#
      • 1...g2
        • 2.Bxe5#

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 1
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
    • P(c);OGATE::QAR1(F)
  • Tries
    • Try
      • S(C);CHECK,N_SPINS(E)
      • Refutation
        • P(b);XS(C)
    • Try
      • B(J);
      • Vars
        • P(c);OGATE::QAR1(F)
      • Refutation
        • P(j);N_SPINR(h)
    • Try
      • B(J);
      • Vars
        • P(c);OGATE::QAR1(F)
      • Refutation
        • P(j);N_SPINR(h)
    • Try
      • B(K);XP(b)
      • Refutation
        • P(k);
    • Try
      • B(K);
      • Vars
        • P(c);OGATE::QAR1(F)
      • Refutation
        • P(k);
    • Try
      • B(K);
      • Vars
        • P(c);OGATE::QAR1(F)
      • Refutation
        • P(k);
    • Try
      • Q(F);XB(f)
      • Refutation
        • P(i);XQ(F)
  • Actual
    • S(C);N_PINS(a),P_PINS(d)
    • Vars
      • K(e);N_SPINR(h),N_SPINS(d),OGATEB,P-FLIGHT,P_SPINP(c),P_SPINS(a),XS(C)::R1(B),XS(a)
      • S(a);XQ(F)::B(J),XR(h)
      • S(a);OGATE,XP(H)::QAR1(F),XS(a)
      • S(a);::B(J),XR(h)
      • S(a);N_PINS(E),N_SPINS(d)::S(E)
      • P(c);::B(J),XR(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).