MESON Chess Problem Database

Problem Display
PID: 223483 (8/8/7p/2p1p1rP/1pPbk1PR/2p1p1KQ/BPP1p1PP/1B2n3 w - - 0 1)

Patthold, Mathilde

Funkschach, 1927

8/8/7p/2p1p1rP/1pPbk1PR/2p1p1KQ/BPP1p1PP/1B2n3

#2

12 + 11

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Rxg4+
      • 2.Qxg4#
    • 1...Rf5
      • 2.gxf5#
    • 1...Rxh5
      • 2.gxh5#
    • 1...Rg6
      • 2.g5#
    • 1...Rg7
      • 2.g5#
    • 1...Rg8
      • 2.g5#
    • 1...Sxc2
      • 2.Bxc2#
    • 1...Sxg2
      • 2.Qxg2#
    • 1...Sd3
      • 2.cxd3#
    • 1...Sf3
      • 2.gxf3#
  • Tries
    • 1.Bb3?
      • 1...Rxg4+
        • 2.Qxg4#
      • 1...Rxh5
        • 2.gxh5#
      • 1...Sxc2
        • 2.B1xc2#
        • 2.B3xc2#
      • 1...Sxg2
        • 2.Qxg2#
      • 1...Rf5
        • 2.gxf5#
      • 1...Rg6
        • 2.g5#
      • 1...Rg7
        • 2.g5#
      • 1...Rg8
        • 2.g5#
      • 1...Sd3
        • 2.cxd3#
      • 1...Sf3
        • 2.gxf3#
      • 1...cxb2!
  • Keys
    • 1.b3!
      • 1...Rxg4+
        • 2.Qxg4#
      • 1...Rxh5
        • 2.gxh5#
      • 1...Sxc2
        • 2.Bxc2#
      • 1...Sxg2
        • 2.Qxg2#
      • 1...Rf5
        • 2.gxf5#
      • 1...Rg6
        • 2.g5#
      • 1...Rg7
        • 2.g5#
      • 1...Rg8
        • 2.g5#
      • 1...Sd3
        • 2.cxd3#
      • 1...Sf3
        • 2.gxf3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • R(j);CHECK,OGATE,P_SPINR(j),XP(J)::QAR2(H),XR(j)
    • R(j);N_PINP(J)::R(K)+P(J),XR(j)
    • R(j);N_PINP(J),XP(L)::R(K)+P(J),XR(j)
    • R(j);::R(K)+P(J)
    • S(a);OGATE,P_SPINS(a),XP(D)::B(A),XS(a)
    • S(a);OGATE,XP(E)::QAB(H),XS(a)
    • S(a);OGATE::P(D),XS(a)
    • S(a);OGATE::P(E),XS(a)
  • Tries
    • Try
      • B(B);
      • Vars
        • R(j);CHECK,OGATE,P_SPINR(j),XP(J)::QAR2(H),XR(j)
        • R(j);N_PINP(J),XP(L)::R(K)+P(J),XR(j)
        • S(a);OGATE,XP(E)::QAB(H),XS(a)
        • R(j);N_PINP(J)::R(K)+P(J),XR(j)
        • R(j);::R(K)+P(J)
        • S(a);OGATE::P(D),XS(a)
        • S(a);OGATE::P(E),XS(a)
      • Refutation
        • P(c);XP(C)
  • Actual
    • P(C);
    • Vars
      • R(j);CHECK,OGATE,P_SPINR(j),XP(J)::QAR2(H),XR(j)
      • R(j);N_PINP(J),XP(L)::R(K)+P(J),XR(j)
      • S(a);OGATE,P_SPINS(a),XP(D)::B(A),XS(a)
      • S(a);OGATE,XP(E)::QAB(H),XS(a)
      • R(j);N_PINP(J)::R(K)+P(J),XR(j)
      • R(j);::R(K)+P(J)
      • S(a);OGATE::P(D),XS(a)
      • S(a);OGATE::P(E),XS(a)
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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).