MESON Chess Problem Database

Problem Display
PID: 16690 (2Q4n/q2p3K/2N5/1RbkB2R/p7/N1P5/8/1B3n2 w - - 0 1)

Mansfield, Comins

Christian Science Monitor, 1942

2Q4n/q2p3K/2N5/1RbkB2R/p7/N1P5/8/1B3n2

#2

9 + 7

3550 Complete Mansfield/II 1997

SOLUTION

  • SOUND
  • Sets
    • 1...Ke6
      • 2.Ba2#
    • 1...Qb6
      • 2.Qxd7#
    • 1...Qa5
      • 2.Qxd7#
    • 1...Qa6
      • 2.Qxd7#
    • 1...Qa8
      • 2.Qxd7#
    • 1...dxc6+
      • 2.Bc7#
    • 1...d6+
      • 2.Bg7#
  • Tries
    • 1.Sd4?
      • threat
        • 2.Bh2#
        • 2.Bg3#
        • 2.Bf4#
        • 2.Bc7#
        • 2.Bb8#
        • 2.c4#
      • 1...d6+
        • 2.Bg7#
      • 1...Qb8
        • 2.Bc7#
        • 2.Bxb8#
        • 2.Rxc5#
        • 2.Qxc5#
        • 2.c4#
      • 1...Qc7
        • 2.Bxc7#
        • 2.c4#
      • 1...Sd2
        • 2.Bh2#
        • 2.Bg3#
        • 2.Bf4#
        • 2.Bc7#
        • 2.Bb8#
      • 1...Sh2
        • 2.Bxh2#
        • 2.Bg3#
        • 2.Bf4#
        • 2.Bc7#
        • 2.Bb8#
        • 2.c4#
      • 1...Sg3
        • 2.Bxg3#
        • 2.c4#
      • 1...Sg6
        • 2.Qg8#
        • 2.c4#
      • 1...Sf7
        • 2.c4#
      • 1...Se3!
    • 1.Sd8?
      • threat
        • 2.Bh2#
        • 2.Bg3#
        • 2.Bf4#
        • 2.Bc7#
        • 2.Bb8#
        • 2.c4#
      • 1...d6+
        • 2.Bg7#
      • 1...Qb8
        • 2.Bc7#
        • 2.Bxb8#
        • 2.Rxc5#
        • 2.Qxc5#
        • 2.c4#
      • 1...Qc7
        • 2.Bxc7#
        • 2.c4#
      • 1...Sd2
        • 2.Bh2#
        • 2.Bg3#
        • 2.Bf4#
        • 2.Bc7#
        • 2.Bb8#
      • 1...Sh2
        • 2.Bxh2#
        • 2.Bg3#
        • 2.Bf4#
        • 2.Bc7#
        • 2.Bb8#
        • 2.c4#
      • 1...Sg3
        • 2.Bxg3#
        • 2.c4#
      • 1...Sg6
        • 2.c4#
      • 1...Sf7
        • 2.c4#
      • 1...Se3!
  • Keys
    • 1.Qe8!
      • threat
        • 2.Sb4#
      • 1...dxc6+
        • 2.Bc7#
      • 1...d6+
        • 2.Bg7#
      • 1...Kxc6
        • 2.Be4#
      • 1...Qa5
        • 2.Qxd7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 4
  • Sets
    • K(d);N_SPINB(c),P_SPINP(f),S_FLIGHT::B(A)
    • Q(e);N_GUARD::QAR2(I),XP(f)
    • P(f);CHECK,SBLOCK,XS(G)::R(F)+B(E)
    • P(f);CHECK,SBLOCK::R(F)+B(E)
  • Tries
    • Try
      • S(G);
      • Threat
        • DUALS(6)
      • Vars
        • P(f);CHECK,SBLOCK::R(F)+B(E)
        • S(g);::P(C)
      • Refutation
        • S(a);
    • Try
      • S(G);
      • Threat
        • DUALS(6)
      • Vars
        • P(f);CHECK,SBLOCK::R(F)+B(E)
        • S(g);::P(C)
      • Refutation
        • S(a);
  • Actual
    • Q(I);
    • Threat
      • S(G)
    • Vars
      • P(f);CHECK,XS(G)::R(F)+B(E)
      • P(f);CHECK,SBLOCK::R(F)+B(E)
      • K(d);N_SPINB(c),P_SPINP(f),S_FLIGHT,XS(G)::B(A)
      • Q(e);N_GUARD::QAR2(I),XP(f)
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