MESON Chess Problem Database

Problem Display
PID: 276594 (r5B1/q7/4P1R1/bPpk1N2/2p3KR/1P1p1PB1/2r3Qp/8 w - - 0 1)

Ravenscroft, Frank

To Mat, 1961

r5B1/q7/4P1R1/bPpk1N2/2p3KR/1P1p1PB1/2r3Qp/8

#2

11 + 9

15601 Albrecht-Leiss-Degener Collection 2024

SOLUTION

  • SOUND
  • Sets
    • 1...Rc1
      • 2.f4#
    • 1...Rc3
      • 2.f4#
    • 1...Bd2
      • 2.f4#
    • 1...Bd8
      • 2.e7#
    • 1...d2
      • 2.f4#
  • Tries
    • 1.Kh5?
      • threat
        • 2.Se3#
      • 1...Re2
        • 2.bxc4#
      • 1...Bd2
        • 2.f4#
      • 1...Qh7+!
  • Keys
    • 1.Kg5!
      • threat
        • 2.Se3#
      • 1...Qe7+
        • 2.Sxe7#
      • 1...Bd2+
        • 2.f4#
      • 1...Bd8+
        • 2.e7#
      • 1...Re2
        • 2.bxc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 3
  • Sets
    • R(a);N_GUARD::QAB(A)+P(C)
    • B(e);S_CUTR(a)::QAB(A)+P(C)
    • B(e);S_CUTR(i)::B(K)+P(I)
    • P(c);S_CUTR(a)::QAB(A)+P(C)
  • Tries
    • Try
      • K(E);S_FLIGHT
      • Threat
        • S(H)
      • Vars
        • R(a);N_GUARD::P(B),XP(d)
        • B(e);S_CUTR(a)::QAB(A)+P(C)
      • Refutation
        • Q(h);CHECK
  • Actual
    • K(E);P-FLIGHT
    • Threat
      • S(H)
    • Vars
      • Q(h);CHECK,N_GUARD::S(H),XQ(h)
      • B(e);CHECK,S_CUTR(a)::QAB(A)+P(C)
      • B(e);CHECK,S_CUTR(i)::B(K)+P(I)
      • R(a);N_GUARD::P(B),XP(d)
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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).