MESON Chess Problem Database

Problem Display
PID: 55274 (4R3/5p2/Q2Kp3/3R1NpN/1P2kP2/3q2r1/2Bn2P1/1b6 w - - 0 1)

Mansfield, Comins

1st Comm., Bottacchi MT, 1973

4R3/5p2/Q2Kp3/3R1NpN/1P2kP2/3q2r1/2Bn2P1/1b6

#2

10 + 8

4054 Complete Mansfield/III 1999
102 Probleemblad 2005

SOLUTION

  • SOUND
  • Sets
    • 1...Qxc2
      • 2.Re5#
    • 1...Rxg2
      • 2.Qxd3#
    • 1...Rg4
      • 2.Qxd3#
    • 1...Sf1
      • 2.Qc4#
    • 1...Sf3
      • 2.Qxd3#
    • 1...Sc4+
      • 2.Qxc4#
    • 1...gxf4
      • 2.Sf6#
    • 1...e5
      • 2.Rxe5#
    • 1...f6
      • 2.Rxe6#
  • Tries
    • 1.Kc6?
      • threat
        • 2.Re5#
      • 1...Rxg2
        • 2.Qxd3#
      • 1...gxf4
        • 2.Sf6#
      • 1...e5
        • 2.Rdxe5#
        • 2.Rexe5#
      • 1...Sf3
        • 2.Qxd3#
      • 1...Sc4
        • 2.Qxc4#
      • 1...f6
        • 2.Rxe6#
      • 1...Qxc2+!
    • 1.Kc7?
      • threat
        • 2.Re5#
      • 1...Kxd5
        • 2.Sf6#
        • 2.Qc6#
      • 1...Rxg2
        • 2.Qxd3#
      • 1...gxf4
        • 2.Sf6#
      • 1...e5
        • 2.Rdxe5#
        • 2.Rexe5#
      • 1...Sf3
        • 2.Qxd3#
      • 1...Sc4
        • 2.Qxc4#
      • 1...f6
        • 2.Qxe6#
      • 1...Qxc2+!
    • 1.Bxd3+?
      • 1...Bxd3
        • 2.Re5#
      • 1...Rxd3!
  • Keys
    • 1.Ke7!
      • threat
        • 2.Re5#
      • 1...Kxd5
        • 2.Sf6#
      • 1...Rxg2
        • 2.Qxd3#
      • 1...gxf4
        • 2.Sf6#
      • 1...exd5
        • 2.Kf6#
      • 1...exf5
        • 2.Kd6#
      • 1...e5
        • 2.Rxe5#
      • 1...Sf3
        • 2.Qxd3#
      • 1...Sc4
        • 2.Qxc4#
      • 1...f6
        • 2.Qxe6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 3
    • REMOVED MATES = 3
  • Sets
    • Q(c);N_PINR(E),N_SPINQ(c),XB(A)::R1(E)
    • R(d);N_GUARD,XP(B)::QAB1(H),XQ(c)
    • R(d);N_GUARD::QAB1(H),XQ(c)
    • S(b);N_GUARD::QAR2(H)
    • S(b);S_CUTR(d)::QAB1(H),XQ(c)
    • S(b);CHECK,N_GUARD::QAR2(H),XS(b)
    • P(f);SBLOCK,XP(D)::S(G)
    • P(g);OGATE::R1(J),XP(g)
    • P(h);N_GUARD::R(J),XP(g)
  • Tries
    • Try
      • K(I);N_SPINR(E),P-FLIGHT
      • Threat
        • R1(E)
      • Vars
        • R(d);N_GUARD,XP(B)::QAB1(H),XQ(c)
        • P(f);SBLOCK,XP(D)::S(G)
        • S(b);S_CUTR(d)::QAB1(H),XQ(c)
        • S(b);N_GUARD::QAR2(H),XS(b)
        • P(h);N_GUARD::R(J),XP(g)
      • Refutation
        • Q(c);CHECK,N_SPINQ(c),XB(A)
    • Try
      • K(I);N_SPINR(E),S_FLIGHT
      • Threat
        • R1(E)
      • Vars
        • R(d);N_GUARD,XP(B)::QAB1(H),XQ(c)
        • P(f);SBLOCK,XP(D)::S(G)
        • S(b);S_CUTR(d)::QAB1(H),XQ(c)
        • S(b);N_GUARD::QAR2(H),XS(b)
        • P(h);N_GUARD::QAR2(H),XP(g)
      • Refutation
        • Q(c);CHECK,N_SPINQ(c),XB(A)
    • Try
      • B(A);CHECK,N_SPINR(E),XQ(c)
      • Vars
        • B(a);XB(A)::R1(E)
      • Refutation
        • R(d);P_PINR(E),XB(A)
  • Actual
    • K(I);N_PINP(g),N_SPINR(E),S_FLIGHT
    • Threat
      • R1(E)
    • Vars
      • K(e);N_SPINQ(c),S_FLIGHT,XR(E)::S(G)
      • R(d);N_GUARD,XP(B)::QAB1(H),XQ(c)
      • P(f);SBLOCK,XP(D)::S(G)
      • P(g);SBLOCK,XR(E)::R(J)+K(I)
      • P(g);XS(F)::R(J)+K(I)
      • P(g);::R1(E),XP(g)
      • S(b);S_CUTR(d)::QAB1(H),XQ(c)
      • S(b);N_GUARD::QAR2(H),XS(b)
      • P(h);N_GUARD::QAR2(H),XP(g)
HTML5 logo

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).