MESON Chess Problem Database

Problem Display
PID: 262788 (4R3/3p1p2/3Rr3/3PkP2/1Pp1N2P/2p3NP/3P2PB/QB2K3 w - - 0 1)

Stange, Manfred

4th HM., Szachy, 1984

4R3/3p1p2/3Rr3/3PkP2/1Pp1N2P/2p3NP/3P2PB/QB2K3

#2

15 + 6

6490 yacpdb 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Kd4
      • 2.Se2#
      • 2.Qxc3#
  • Tries
    • 1.Sf1+?
      • 1...Kd4
        • 2.Qxc3#
        • 2.Qa7#
        • 2.dxc3#
        • 2.dxe6#
      • 1...Kxf5!
    • 1.Sh1+?
      • 1...Kd4
        • 2.Qxc3#
        • 2.Qa7#
        • 2.dxe6#
      • 1...Kxf5!
    • 1.Sh5+?
      • 1...Kd4
        • 2.Qxc3#
        • 2.Qa7#
        • 2.dxe6#
      • 1...Kxf5!
  • Keys
    • 1.Sxc3!
      • 1...Kd4+
        • 2.Sce2#
      • 1...Kf4+
        • 2.Sge2#
      • 1...Kxd6+
        • 2.Sge4#
      • 1...Kf6+
        • 2.Sce4#
      • 1...Rxe8
        • 2.Sge2#
      • 1...Re7
        • 2.Sge2#
      • 1...f6
        • 2.Sge2#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(G);CHECK
      • Refutation
        • K(c);N_SPINP(a),N_SPINR(d),P-FLIGHT,P_PINS(J),XP(M)
    • Try
      • S(G);CHECK
      • Refutation
        • K(c);N_SPINP(a),N_SPINR(d),P-FLIGHT,P_PINS(J),XP(M)
    • Try
      • S(G);CHECK
      • Refutation
        • K(c);N_SPINP(a),N_SPINR(d),P-FLIGHT,P_PINS(J),XP(M)
  • Actual
    • S(J);XP(a)
    • Vars
      • K(c);CHECK,N_GUARD,N_SPINR(d),S_FLIGHT::QAB(A)+S(J),DCHECK
      • K(c);CHECK,N_GUARD,N_SPINR(d),S_FLIGHT::B(F)+S(G),DCHECK
      • K(c);CHECK,N_GUARD,N_SPINR(d),S_FLIGHT,XR(N)::B(F)+S(G),DCHECK
      • K(c);CHECK,N_GUARD,S_FLIGHT::QAB(A)+S(J),DCHECK
      • R(d);N_SPINR(d),XR(O)::B(F)+S(G)
      • R(d);::B(F)+S(G)
      • P(f);SBLOCK::B(F)+S(G)
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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).