MESON Chess Problem Database

Problem Display
PID: 197238 (2RK2b1/1N2N1Q1/2R2n2/p2pPP1r/3k3b/1P2p1P1/1P6/1B4B1 w - - 0 1)

Witt, Andreas

StrateGems, 2019

2RK2b1/1N2N1Q1/2R2n2/p2pPP1r/3k3b/1P2p1P1/1P6/1B4B1

#2

13 + 8

SOLUTION

  • SOUND
  • Tries
    • 1.Bxe3+?
      • 1...Kxe5
        • 2.Sg6#
      • 1...Kxe3!
    • 1.Rc1?
      • threat
        • 2.Sc6#
      • 1...Kxe5
        • 2.Sc6#
      • 1...Sg4
        • 2.Rd1#
      • 1...Sd7
        • 2.Rd1#
      • 1...Sh7
        • 2.Rd1#
      • 1...Se8
        • 2.Rd1#
      • 1...Se4!
    • 1.Rc3?
      • threat
        • 2.Sc6#
      • 1...Kxe5
        • 2.Sc6#
      • 1...Se4
        • 2.Bxe3#
        • 2.Rd3#
      • 1...Sd7
        • 2.Bxe3#
      • 1...Sh7
        • 2.Bxe3#
      • 1...Se8
        • 2.Bxe3#
      • 1...Sg4!
    • 1.Rc4+?
      • 1...Kxe5
        • 2.Sc6#
        • 2.Sg6#
      • 1...dxc4!
    • 1.Re6?
      • threat
        • 2.Sc6#
      • 1...Sg4
        • 2.Qxg4#
      • 1...Sd7
        • 2.Qg4#
      • 1...Sh7
        • 2.Qg4#
      • 1...Se8
        • 2.Qg4#
      • 1...Se4!
    • 1.Rxf6?
      • threat
        • 2.Sc6#
      • 1...Kxe5
        • 2.Sc6#
        • 2.Re6#
      • 1...Bxf6!
  • Keys
    • 1.Rd6!
      • threat
        • 2.Sc6#
      • 1...Kxe5
        • 2.Sc6#
      • 1...Se4
        • 2.Rc4#
      • 1...Sg4
        • 2.Rc4#
      • 1...Sd7
        • 2.Rc4#
      • 1...Sh7
        • 2.Rc4#
      • 1...Se8
        • 2.Rc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(B);CHECK,XP(a)
      • Vars
        • K(b);P_SPINS(g),S_FLIGHT,XP(F)::S(J)
      • Refutation
        • K(b);S_FLIGHT,XB(B)
    • Try
      • R(H);
      • Threat
        • S(J)
      • Vars
        • K(b);N_SPINP(a),P_SPINS(g),S_FLIGHT,XP(F)::S(J)
        • S(g);P_PINS(J)::R(H)
      • Refutation
        • S(g);P_PINS(J)
    • Try
      • R(H);
      • Threat
        • S(J)
      • Vars
        • K(b);N_SPINP(a),P_SPINS(g),S_FLIGHT,XP(F)::S(J)
        • S(g);P_PINS(J)::B(B),XP(a)
      • Refutation
        • S(g);P_PINS(J)
    • Try
      • R(H);CHECK
      • Refutation
        • P(e);XR(H)
    • Try
      • R(H);
      • Threat
        • S(J)
      • Vars
        • S(g);N_GUARD,P_PINS(J)::QAR(K),XS(g)
        • S(g);N_GUARD,P_PINS(J)::QAR(K)
      • Refutation
        • S(g);P_PINS(J)
    • Try
      • R(H);XS(g)
      • Threat
        • S(J)
      • Refutation
        • B(c);P_PINS(J),XR(H)
  • Actual
    • R(H);
    • Threat
      • S(J)
    • Vars
      • K(b);N_SPINP(a),P_SPINS(g),S_FLIGHT,XP(F)::S(J)
      • S(g);P_PINS(J)::R1(L)
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Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).