MESON Chess Problem Database

Problem Display
PID: 6996 (4B3/1b5r/4Np2/K2k1P2/2p2Bp1/2p5/8/1Q6 w - - 0 1)

Mansfield, Comins

Morning Post, 1935

4B3/1b5r/4Np2/K2k1P2/2p2Bp1/2p5/8/1Q6

#2

6 + 7

3550 Complete Mansfield/II 1997

SOLUTION

  • SOUND
  • Sets
    • 1...Rh1
      • 2.Qxh1#
      • 2.Qxb7#
    • 1...Rh2
      • 2.Qxb7#
    • 1...Rh3
      • 2.Qxb7#
    • 1...Rh4
      • 2.Qxb7#
    • 1...Rh5
      • 2.Qxb7#
    • 1...Rh6
      • 2.Qxb7#
    • 1...Rc7
      • 2.Qh1#
    • 1...Rd7
      • 2.Qh1#
    • 1...Re7
      • 2.Qh1#
    • 1...Rf7
      • 2.Qh1#
    • 1...Rg7
      • 2.Qh1#
    • 1...Rh8
      • 2.Qxb7#
  • Tries
    • 1.Bc6+?
      • 1...Kxc6
        • 2.Qb5#
      • 1...Bxc6!
    • 1.Qg1?
      • threat
        • 2.Qd4#
        • 2.Qg2#
      • 1...Rd7
        • 2.Qh1#
        • 2.Qg2#
      • 1...Rh2
        • 2.Qd4#
      • 1...Rh3
        • 2.Qd4#
      • 1...Ke4!
  • Keys
    • 1.Bh5!
      • threat
        • 2.Qh1#
      • 1...Kc6
        • 2.Qb5#
      • 1...Rxh5
        • 2.Qxb7#
      • 1...g3
        • 2.Bf3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 10
  • Sets
    • R(g);N_GUARD::QAB(A),XB(f)
    • R(g);N_GUARD::QAB(A)
  • Tries
    • Try
      • B(F);CHECK
      • Vars
        • K(d);S_FLIGHT,XB(F)::QAB1(A)
      • Refutation
        • B(f);XB(F)
    • Try
      • Q(A);
      • Threat
        • DUALS(2)
      • Vars
        • R(g);::QAR1(A)
      • Refutation
        • K(d);S_FLIGHT
  • Actual
    • B(F);
    • Threat
      • QAB(A)
    • Vars
      • K(d);S_FLIGHT::QAB1(A)
      • R(g);N_GUARD,XB(F)::QAB(A),XB(f)
      • P(c);OGATE::B(F)
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