MESON Chess Problem Database

Problem Display
PID: 273190 (B1r5/2p1Q1p1/P1P2p2/1pNk4/R2n1B2/1pR3Nb/1Kn1p3/6bq w - - 0 1)

Savournin, Jacques

Probleemblad, 1952

B1r5/2p1Q1p1/P1P2p2/1pNk4/R2n1B2/1pR3Nb/1Kn1p3/6bq

#2

10 + 13

SOLUTION

  • SOUND
  • Sets
    • 1...Qe4
      • 2.Qxe4#
    • 1...Qh2
      • 2.Qe4#
    • 1...Bf1
      • 2.Qd7#
    • 1...Bg2
      • 2.Qd7#
    • 1...Bd7
      • 2.Qxd7#
    • 1...Sf3
      • 2.Qe4#
    • 1...Sf5
      • 2.Qe6#
      • 2.Qf7#
    • 1...Se6
      • 2.Qd7#
    • 1...f5
      • 2.Qe5#
      • 2.Qd7#
  • Tries
    • 1.Sf5?
      • threat
        • 2.Qd7#
      • 1...Sxf5
        • 2.Qe6#
        • 2.Qf7#
      • 1...Rd8
        • 2.Qxd8#
      • 1...Bxf5!
    • 1.Sxb3?
      • threat
        • 2.Rc5#
      • 1...Sxc6
        • 2.Bxc6#
      • 1...Sf3
        • 2.Qe4#
      • 1...Sf5
        • 2.Qf7#
      • 1...Se6
        • 2.Qd7#
      • 1...Sxb3!
    • 1.Sce4?
      • threat
        • 2.Rc5#
      • 1...Sxc6
        • 2.Bxc6#
      • 1...Sf5
        • 2.Qf7#
      • 1...Se6
        • 2.Qd7#
      • 1...Sf3!
    • 1.Se6?
      • threat
        • 2.Rc5#
        • 2.Qd7#
      • 1...Bxe6
        • 2.Rc5#
        • 2.Qc5#
      • 1...Sxc6
        • 2.Bxc6#
        • 2.Qd7#
      • 1...Sxe6
        • 2.Qd7#
      • 1...Rd8
        • 2.Sxc7#
        • 2.Rc5#
      • 1...Sf3
        • 2.Qd7#
      • 1...Sf5!
    • 1.Sb7?
      • threat
        • 2.Rc5#
      • 1...Sf3
        • 2.Qe4#
      • 1...Sf5
        • 2.Qf7#
      • 1...Se6
        • 2.Qd7#
      • 1...Sxc6!
    • 1.Sd7?
      • threat
        • 2.Rc5#
      • 1...Sxc6
        • 2.Bxc6#
      • 1...Sf3
        • 2.Qe4#
      • 1...Sf5
        • 2.Qf7#
      • 1...Se6!
    • 1.Qd8+?
      • 1...Bd7
        • 2.Qxd7#
      • 1...Rxd8!
    • 1.Qf7+?
      • 1...Se6
        • 2.Qd7#
      • 1...Be6!
  • Keys
    • 1.Sd3!
      • threat
        • 2.Rc5#
      • 1...Sxc6
        • 2.Bxc6#
      • 1...Sf3
        • 2.Qe4#
      • 1...Sf5
        • 2.Qf7#
      • 1...Se6
        • 2.Qd7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 5
  • Sets
    • Q(b);N_GUARD::QAB1(I),XQ(b)
    • Q(b);N_GUARD::QAB1(I)
    • B(f);N_GUARD::QAR2(I)
    • B(f);N_GUARD::QAR2(I),XB(f)
    • S(g);S_CUTQ(b)::QAB1(I)
    • S(g);S_CUTB(f)::QAR2(I)
  • Tries
    • Try
      • S(C);
      • Threat
        • QAR2(I)
      • Vars
        • R(m);N_GUARD::QAR(I),XR(m)
      • Refutation
        • B(f);XS(C)
    • Try
      • S(F);XP(e)
      • Threat
        • R1(B)
      • Vars
        • S(g);OGATE,P_SPINS(g),XP(H)::B(J),XS(g)
        • S(g);S_CUTQ(b)::QAB1(I)
        • S(g);N_GUARD,S_CUTB(f)::QAB(I)
        • S(g);S_CUTB(f)::QAR2(I)
      • Refutation
        • S(g);XS(F)
    • Try
      • S(F);
      • Threat
        • R1(B)
      • Vars
        • S(g);OGATE,P_SPINS(g),XP(H)::B(J),XS(g)
        • S(g);N_GUARD,S_CUTB(f)::QAB(I)
        • S(g);S_CUTB(f)::QAR2(I)
      • Refutation
        • S(g);
    • Try
      • S(F);
      • Threat
        • DUALS(2)
      • Vars
        • S(g);XS(F)::QAR2(I)
        • S(g);::QAR2(I)
      • Refutation
        • S(g);
    • Try
      • S(F);
      • Threat
        • R1(B)
      • Vars
        • S(g);S_CUTQ(b)::QAB1(I)
        • S(g);N_GUARD,S_CUTB(f)::QAB(I)
        • S(g);S_CUTB(f)::QAR2(I)
      • Refutation
        • S(g);XP(H)
    • Try
      • S(F);
      • Threat
        • R1(B)
      • Vars
        • S(g);OGATE,P_SPINS(g),XP(H)::B(J),XS(g)
        • S(g);S_CUTQ(b)::QAB1(I)
        • S(g);N_GUARD,S_CUTB(f)::QAB(I)
      • Refutation
        • S(g);
    • Try
      • Q(I);CHECK
      • Vars
        • B(f);N_GUARD,P_SPINB(f)::QAR2(I),XB(f)
      • Refutation
        • R(m);XQ(I)
    • Try
      • Q(I);CHECK
      • Vars
        • S(g);P_SPINS(g),S_CUTB(f)::QAR2(I)
      • Refutation
        • B(f);P_SPINB(f)
  • Actual
    • S(F);
    • Threat
      • R1(B)
    • Vars
      • S(g);OGATE,P_SPINS(g),XP(H)::B(J),XS(g)
      • S(g);S_CUTQ(b)::QAB1(I)
      • S(g);N_GUARD,S_CUTB(f)::QAB(I)
      • S(g);S_CUTB(f)::QAR2(I)
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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).