MESON Chess Problem Database

Problem Display
PID: 10003 (5kNq/6p1/6Br/1p6/6R1/1Q3r2/K4p2/6n1 w - - 0 1)

Mansfield, Comins

Manchester Guardian, 1961

5kNq/6p1/6Br/1p6/6R1/1Q3r2/K4p2/6n1

#2

5 + 8

3550 Complete Mansfield/II 1997

SOLUTION

  • SOUND
  • Sets
    • 1...Rc3
      • 2.Rf4#
      • 2.Qf7#
    • 1...Rd3
      • 2.Rf4#
      • 2.Qf7#
    • 1...Re3
      • 2.Rf4#
      • 2.Qf7#
    • 1...Rg3
      • 2.Rf4#
      • 2.Qf7#
    • 1...Rfh3
      • 2.Rf4#
      • 2.Qf7#
    • 1...Rf4
      • 2.Rxf4#
    • 1...Rf7
      • 2.Qxf7#
  • Tries
    • 1.Ra4?
      • threat
        • 2.Ra8#
      • 1...bxa4
        • 2.Qb8#
      • 1...Rc3
        • 2.Rf4#
        • 2.Qf7#
      • 1...Rd3
        • 2.Rf4#
        • 2.Qf7#
      • 1...Re3
        • 2.Rf4#
        • 2.Qf7#
      • 1...Qxg8!
    • 1.Rd4?
      • threat
        • 2.Rd8#
      • 1...Rd3
        • 2.Rf4#
        • 2.Qf7#
      • 1...Re3
        • 2.Rf4#
        • 2.Qf7#
      • 1...Qxg8!
    • 1.Re4?
      • threat
        • 2.Re8#
      • 1...Rf7
        • 2.Qxf7#
      • 1...Re3
        • 2.Rf4#
        • 2.Qf7#
      • 1...Rxg6!
    • 1.Qxf3+?
      • 1...Kxg8
        • 2.Qa8#
        • 2.Qf7#
      • 1...Sxf3!
  • Keys
    • 1.Rc4!
      • threat
        • 2.Rc8#
      • 1...Kxg8
        • 2.Rc8#
      • 1...Qxg8
        • 2.Qb4#
      • 1...bxc4
        • 2.Qb8#
      • 1...Rc3
        • 2.Rf4#
      • 1...Rd3
        • 2.Rf4#
      • 1...Re3
        • 2.Rf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 2
  • Sets
    • R(c);N_GUARD::R(C),XR(c)
    • R(c);N_GUARD::QAR1(B),XR(c)
  • Tries
    • Try
      • R(C);
      • Threat
        • R(C)
      • Vars
        • P(d);OGATE,XR(C)::QAR(B)
      • Refutation
        • Q(h);P_PINQ(B),XS(E)
    • Try
      • R(C);
      • Threat
        • R(C)
      • Refutation
        • Q(h);P_PINQ(B),XS(E)
    • Try
      • R(C);
      • Threat
        • R1(C)
      • Vars
        • R(c);N_GUARD::QAR1(B),XR(c)
      • Refutation
        • R(e);XB(D)
    • Try
      • Q(B);CHECK,XR(c)
      • Refutation
        • S(a);XQ(B)
  • Actual
    • R(C);
    • Threat
      • R(C)
    • Vars
      • K(g);P-FLIGHT,XS(E)::QAB(B)+R(C),DCHECK
      • Q(h);SBLOCK,XS(E)::QAB(B)
      • P(d);OGATE,XR(C)::QAR(B)
      • R(c);N_GUARD::R(C)
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