MESON Chess Problem Database

Problem Display
PID: 97003 (8/8/1p6/1p3R1p/1p1PpP1p/1P2k2P/3nnN1K/2QBNR2 w - - 0 1)

Moutecidis, Pavlos

Problem (Zagreb), 1955

8/8/1p6/1p3R1p/1p1PpP1p/1P2k2P/3nnN1K/2QBNR2

#2

11 + 9

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Kxd4
      • 2.Qxd2#
    • 1...Sxc1
      • 2.Sc2#
    • 1...Sg1
      • 2.Sc2#
    • 1...Sc3
      • 2.Sc2#
    • 1...Sg3
      • 2.Sc2#
    • 1...Sxd4
      • 2.Sg2#
    • 1...Sxf4
      • 2.Sc2#
  • Tries
    • 1.Kh1?
      • 1...Kxd4
        • 2.Qxd2#
      • 1...Sxc1
        • 2.Sc2#
      • 1...Sxd4
        • 2.Sg2#
      • 1...Sxf4
        • 2.Sc2#
      • 1...Sg1
        • 2.Sc2#
      • 1...Sc3
        • 2.Sc2#
      • 1...Sg3+!
    • 1.Sg2+?
      • 1...Kxd4
        • 2.Qxd2#
      • 1...Kf3!
    • 1.Sg4+?
      • 1...Kxd4
        • 2.Qxd2#
      • 1...hxg4!
    • 1.Bxe2?
      • 1...Kxd4
        • 2.Qxd2#
      • 1...Kxe2!
    • 1.Rf6?
      • 1...Sxc1
        • 2.Sc2#
      • 1...Sxd4
        • 2.Sg2#
      • 1...Sxf4
        • 2.Sc2#
      • 1...Sg1
        • 2.Sc2#
      • 1...Sc3
        • 2.Sc2#
      • 1...Sg3
        • 2.Sc2#
      • 1...Kxd4!
    • 1.Rf7?
      • 1...Sxc1
        • 2.Sc2#
      • 1...Sxd4
        • 2.Sg2#
      • 1...Sxf4
        • 2.Sc2#
      • 1...Sg1
        • 2.Sc2#
      • 1...Sc3
        • 2.Sc2#
      • 1...Sg3
        • 2.Sc2#
      • 1...Kxd4!
    • 1.Rf8?
      • 1...Sxc1
        • 2.Sc2#
      • 1...Sxd4
        • 2.Sg2#
      • 1...Sxf4
        • 2.Sc2#
      • 1...Sg1
        • 2.Sc2#
      • 1...Sc3
        • 2.Sc2#
      • 1...Sg3
        • 2.Sc2#
      • 1...Kxd4!
    • 1.Qc3+?
      • 1...Sxc3
        • 2.Sc2#
      • 1...bxc3!
    • 1.d5?
      • 1...Sxc1
        • 2.Sc2#
      • 1...Sxf4
        • 2.Sc2#
      • 1...Sg1
        • 2.Sc2#
      • 1...Sc3
        • 2.Sc2#
      • 1...Sg3
        • 2.Sc2#
      • 1...Sd4
        • 2.Sg2#
      • 1...Kd4!
  • Keys
    • 1.Rd5!
      • 1...Kxf4
        • 2.Sg4#
      • 1...Sxc1
        • 2.Sg2#
      • 1...Sxd4
        • 2.Sg2#
      • 1...Sxf4
        • 2.Sc2#
      • 1...Sg1
        • 2.Sg2#
      • 1...Sc3
        • 2.Sg2#
      • 1...Sg3
        • 2.Sg2#

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 4
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • K(c);N_SPINS(a),S_FLIGHT,XP(I)::QAR2(A),XS(a)
    • S(b);N_SPINS(a),XQ(A)::S(C)
    • S(b);::S(C)
    • S(b);SBLOCK,XP(I)::S(C)
    • S(b);XP(J)::S(C)
  • Tries
    • Try
      • K(F);P-FLIGHT
      • Vars
        • K(c);N_SPINS(a),S_FLIGHT,XP(I)::QAR2(A),XS(a)
        • S(b);N_SPINS(a),XQ(A)::S(C)
        • S(b);SBLOCK,XP(I)::S(C)
        • S(b);XP(J)::S(C)
        • S(b);::S(C)
      • Refutation
        • S(b);CHECK
    • Try
      • S(C);CHECK
      • Vars
        • K(c);N_SPINS(a),S_FLIGHT,XP(I)::QAR2(A),XS(a)
      • Refutation
        • K(c);N_SPINS(a),P-FLIGHT,P_SPINS(b)
    • Try
      • S(E);CHECK
      • Vars
        • K(c);N_SPINS(a),S_FLIGHT,XP(I)::QAR2(A),XS(a)
      • Refutation
        • P(h);XS(E)
    • Try
      • B(B);XS(b)
      • Vars
        • K(c);N_SPINS(a),S_FLIGHT,XP(I)::QAR2(A),XS(a)
      • Refutation
        • K(c);N_SPINS(a),P-FLIGHT,XB(B)
    • Try
      • R(K);
      • Vars
        • S(b);N_SPINS(a),XQ(A)::S(C)
        • S(b);SBLOCK,XP(I)::S(C)
        • S(b);XP(J)::S(C)
        • S(b);::S(C)
      • Refutation
        • K(c);N_SPINS(a),S_FLIGHT,XP(I)
    • Try
      • R(K);
      • Vars
        • S(b);N_SPINS(a),XQ(A)::S(C)
        • S(b);SBLOCK,XP(I)::S(C)
        • S(b);XP(J)::S(C)
        • S(b);::S(C)
      • Refutation
        • K(c);N_SPINS(a),S_FLIGHT,XP(I)
    • Try
      • R(K);
      • Vars
        • S(b);N_SPINS(a),XQ(A)::S(C)
        • S(b);SBLOCK,XP(I)::S(C)
        • S(b);XP(J)::S(C)
        • S(b);::S(C)
      • Refutation
        • K(c);N_SPINS(a),S_FLIGHT,XP(I)
    • Try
      • Q(A);CHECK,N_PINS(a)
      • Vars
        • S(b);XQ(A)::S(C)
      • Refutation
        • P(d);XQ(A)
    • Try
      • P(I);
      • Vars
        • S(b);N_SPINS(a),XQ(A)::S(C)
        • S(b);XP(J)::S(C)
        • S(b);::S(C)
        • S(b);SBLOCK::S(C)
      • Refutation
        • K(c);N_SPINS(a),S_FLIGHT
  • Actual
    • R(K);
    • Vars
      • K(c);S_FLIGHT,XP(J)::R(D)+S(E)
      • S(b);N_SPINS(a),XQ(A)::S(C)
      • S(b);XP(I)::S(C)
      • S(b);SBLOCK,XP(J)::S(C)
      • S(b);::S(C)
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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).