MESON Chess Problem Database

Problem Display
PID: 224531 (3Q1n2/B2p4/2p5/1p4N1/1p6/6p1/1K2k1B1/RN3R2 w - - 0 1)

Boatrite, AV

Nashville Daily American, 1887

3Q1n2/B2p4/2p5/1p4N1/1p6/6p1/1K2k1B1/RN3R2

#2

8 + 7

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Bf3+?
      • 1...Kxf1
        • 2.Sd2#
        • 2.Sa3#
        • 2.Sc3#
      • 1...Kd3!
    • 1.Rc1?
      • threat
        • 2.Bf1#
      • 1...Kd3
        • 2.Bf1#
      • 1...c5!
    • 1.Re1+?
      • 1...Kd3
        • 2.Bf1#
      • 1...Kxe1!
    • 1.Rf2+?
      • 1...Kd1
        • 2.Sd2#
        • 2.Sa3#
        • 2.Sc3#
      • 1...Ke1
        • 2.Sd2#
        • 2.Sa3#
        • 2.Sc3#
      • 1...Kd3
        • 2.Bf1#
      • 1...gxf2!
    • 1.Qe7+?
      • 1...Kd3
        • 2.Qe4#
      • 1...Se6!
    • 1.Qxd7?
      • threat
        • 2.Qd1#
        • 2.Qd2#
      • 1...c5
        • 2.Qd2#
      • 1...Sxd7!
    • 1.Qe8+?
      • 1...Kd3
        • 2.Qe4#
      • 1...Se6!
  • Keys
    • 1.Bxc6!
      • threat
        • 2.Bxb5#
      • 1...Kxf1
        • 2.Sc3#
      • 1...Kd3
        • 2.Bxb5#
      • 1...dxc6
        • 2.Qd1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(E);CHECK
      • Refutation
        • K(a);P_SPINP(f),S_FLIGHT
    • Try
      • R(C);
      • Threat
        • B(E)
      • Vars
        • K(a);P_SPINP(f),S_FLIGHT::B(E)
      • Refutation
        • P(e);
    • Try
      • R(C);CHECK
      • Vars
        • K(a);P_SPINP(f),S_FLIGHT::B(E)
      • Refutation
        • K(a);P-FLIGHT,XR(C)
    • Try
      • R(C);CHECK
      • Vars
        • K(a);P_SPINP(f),S_FLIGHT::B(E)
      • Refutation
        • P(b);XR(C)
    • Try
      • Q(H);CHECK
      • Vars
        • K(a);S_FLIGHT::QAB1(H)
      • Refutation
        • S(g);P_SPINS(g)
    • Try
      • Q(H);XP(f)
      • Threat
        • DUALS(2)
      • Vars
        • P(e);::QAR1(H)
      • Refutation
        • S(g);XQ(H)
    • Try
      • Q(H);CHECK
      • Vars
        • K(a);S_FLIGHT::QAB1(H)
      • Refutation
        • S(g);P_SPINS(g)
  • Actual
    • B(E);XP(e)
    • Threat
      • B(E),XP(d)
    • Vars
      • K(a);S_FLIGHT,XR(C)::R(A)+S(B)
      • K(a);P_SPINP(f),S_FLIGHT::B(E),XP(d)
      • P(f);OGATE,XB(E)::QAB1(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).