MESON Chess Problem Database

Problem Display
PID: 10556 (8/5p2/5R2/2pkp1Q1/3p2p1/1P3PP1/b1P1P3/1rRN3K w - - 0 1)

Mansfield, Comins

The Problemist, 1965

8/5p2/5R2/2pkp1Q1/3p2p1/1P3PP1/b1P1P3/1rRN3K

#2

10 + 8

4054 Complete Mansfield/III 1999

SOLUTION

  • SOUND
  • Tries
    • 1.Qg8?
      • threat
        • 2.Qxf7#
        • 2.Qa8#
        • 2.Qd8#
      • 1...Rxb3
        • 2.Qxf7#
      • 1...Bxb3
        • 2.Qxf7#
      • 1...gxf3
        • 2.Qa8#
      • 1...d3
        • 2.Qd8#
      • 1...e4
        • 2.Qg5#
      • 1...c4!
  • Keys
    • 1.Qd2!
      • threat
        • 2.Sc3#
        • 2.Se3#
        • 2.c4#
        • 2.e4#
      • 1...Rxc1
        • 2.e4#
      • 1...Rxb3
        • 2.c4#
      • 1...Bxb3
        • 2.Se3#
      • 1...gxf3
        • 2.Sc3#
      • 1...d3
        • 2.Qxd3#
      • 1...c4
        • 2.Qa5#
      • 1...e4
        • 2.Qg5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(I);N_PINP(g),P_PINP(h)
      • Threat
        • DUALS(3)
      • Vars
        • R(a);XP(F)::QAB(I),XP(h)
        • B(b);XP(F)::QAB(I),XP(h)
        • P(d);XP(G)::QAB(I)
        • P(c);::QAR(I)
        • P(g);OGATEB::QAR(I)
      • Refutation
        • P(e);
  • Actual
    • Q(I);N_PINP(g),P_PINP(c)
    • Threat
      • DUALS(4)
    • Vars
      • R(a);P_PINS(B),XR(A)::P(E)
      • R(a);XP(F)::P(D)
      • B(b);XP(F)::S(B)
      • P(d);XP(G)::S(B)
      • P(c);OGATEB::QAR2(I),XP(c)
      • P(e);OGATEB::QAR(I)
      • P(g);OGATEB::QAR(I)
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