MESON Chess Problem Database

Problem Display
PID: 684 (B7/1R5N/K3pP2/3n2R1/p1n1kP1N/r3P1r1/p1P1Q3/8 w - - 0 1)

Mansfield, Comins

Comm., British Chess Magazine, 1932/II

B7/1R5N/K3pP2/3n2R1/p1n1kP1N/r3P1r1/p1P1Q3/8

#2

11 + 8

3550 Complete Mansfield/II 1997

SOLUTION

  • SOUND
  • Sets
    • 1...Rd3
      • 2.Qxd3#
      • 2.cxd3#
    • 1...Raxe3
      • 2.Qxc4#
    • 1...Rg1
      • 2.Qf3#
    • 1...Rg2
      • 2.Qf3#
    • 1...Rgxe3
      • 2.Qxc4#
    • 1...Rf3
      • 2.Qxf3#
    • 1...Rg4
      • 2.Qf3#
    • 1...Rxg5
      • 2.Sxg5#
      • 2.Qf3#
    • 1...Sb2
      • 2.Re5#
    • 1...Sd2
      • 2.Re5#
    • 1...Scxe3
      • 2.Rb4#
    • 1...Sa5
      • 2.Re5#
    • 1...Se5
      • 2.Rxe5#
    • 1...Scb6
      • 2.Re5#
    • 1...Sd6
      • 2.Re5#
    • 1...Sc3
      • 2.Qd3#
    • 1...Sb4+
      • 2.Rxb4#
    • 1...Sdb6
      • 2.Rxb6#
    • 1...Sxf6
      • 2.Sxf6#
    • 1...Sc7+
      • 2.Rxc7#
    • 1...Se7
      • 2.Rxe7#
  • Keys
    • 1.Rg4!
      • threat
        • 2.Sg5#
      • 1...Sb4+
        • 2.Rxb4#
      • 1...Sc7+
        • 2.Rxc7#
      • 1...Raxe3
        • 2.Qxc4#
      • 1...Rgxe3
        • 2.Qxc4#
      • 1...Rxg4
        • 2.Qf3#
      • 1...Scxe3
        • 2.Rb4#
      • 1...Sdxe3
        • 2.Rd7#
      • 1...Sxf4
        • 2.Rb5#
      • 1...Sxf6
        • 2.Sxf6#
      • 1...Sc3
        • 2.Qd3#
      • 1...Sdb6
        • 2.Rxb6#
      • 1...Se7
        • 2.Rxe7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 9
  • Sets
    • R(b);P_SPINR(b),SBLOCK,XP(C)::QAR2(B),XS(e)
    • R(c);N_GUARD::QAB1(B)
    • R(c);P_SPINR(c),SBLOCK,XP(C)::QAR2(B),XS(e)
    • R(c);N_GUARD::QAB1(B),XR(c)
    • S(e);N_GUARD::R1(F)
    • S(e);OGATEB,P_SPINS(e),XP(C)::R(I)
    • S(e);N_GUARD::R1(F),XS(e)
    • S(g);S_CUTR(b)::QAB1(B)
    • S(g);CHECK,OGATEB::B(K)+R(I),XS(g)
    • S(g);OGATEB::B(K)+R(I),XS(g)
    • S(g);XP(H)::S(J),XS(g)
  • Actual
    • R(F);
    • Threat
      • S(J)
    • Vars
      • S(g);CHECK,OGATEB::B(K)+R(I),XS(g)
      • R(b);P_SPINR(b),SBLOCK,XP(C)::QAR2(B),XS(e)
      • R(c);P_SPINR(c),SBLOCK,XP(C)::QAR2(B),XS(e)
      • R(c);N_GUARD,XR(F)::QAB1(B)
      • S(e);OGATEB,P_SPINS(e),XP(C)::R(I)
      • S(g);OGATEB,P_SPINS(g),XP(C)::B(K)+R(I)
      • S(g);OGATEB,P_SPINS(g),XP(D)::B(K)+R(I)
      • S(g);XP(H)::S(J),XS(g)
      • S(g);S_CUTR(b)::QAB1(B)
      • S(g);OGATEB::B(K)+R(I),XS(g)
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