MESON Chess Problem Database

Problem Display
PID: 11144 (5K2/1p1p2p1/R1B2k2/Q3N1r1/6PB/8/3rp3/8 w - - 0 1)

Mansfield, Comins

2nd HM., Western Morning News, 1936

5K2/1p1p2p1/R1B2k2/Q3N1r1/6PB/8/3rp3/8

#2

7 + 7

3550 Complete Mansfield/II 1997

SOLUTION

  • SOUND
  • Sets
    • 1...Ke6
      • 2.Bxd7#
  • Tries
    • 1.Sxd7+?
      • 1...Kg6
        • 2.Be4#
      • 1...Rxd7
        • 2.Qf5#
      • 1...Ke6!
    • 1.Bxg5+?
      • 1...Ke6
        • 2.Bxd7#
      • 1...Kxg5!
    • 1.Bxb7+?
      • 1...Rd6
        • 2.Rxd6#
      • 1...d6!
    • 1.Qd8+?
      • 1...Ke6
        • 2.Qe7#
      • 1...Kxe5!
    • 1.Qc5?
      • threat
        • 2.Qe7#
      • 1...Ke6
        • 2.Bxd7#
        • 2.Qe7#
      • 1...Rd6
        • 2.Qxd6#
      • 1...d6!
  • Keys
    • 1.Sd3!
      • threat
        • 2.Qf5#
      • 1...Ke6
        • 2.Bd5#
      • 1...Kg6
        • 2.Be4#
      • 1...b5
        • 2.Bxd7#
      • 1...d5
        • 2.Bxb7#
      • 1...g6
        • 2.Qe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • K(d);N_SPINR(c),P-FLIGHT::R(E)+B(F),DCHECK,XP(f)
  • Tries
    • Try
      • S(D);CHECK,XP(f)
      • Vars
        • K(d);N_SPINR(c),P-FLIGHT::R(E)+B(F),DCHECK
        • R(a);XS(D)::QAR1(C)
      • Refutation
        • K(d);N_SPINR(c),P-FLIGHT
    • Try
      • B(B);CHECK,XR(c)
      • Vars
        • K(d);P-FLIGHT::R(E)+B(F),DCHECK,XP(f)
      • Refutation
        • K(d);S_FLIGHT,XB(B)
    • Try
      • B(F);CHECK,XP(e)
      • Vars
        • R(a);N_GUARD::R(E),XR(a)
      • Refutation
        • P(f);P_SPINP(f)
    • Try
      • Q(C);CHECK
      • Vars
        • K(d);N_SPINR(c),P-FLIGHT::QAR1(C)
      • Refutation
        • K(d);N_SPINR(c),S_FLIGHT,XS(D)
    • Try
      • Q(C);
      • Threat
        • QAB1(C)
      • Vars
        • R(a);N_GUARD::QAR2(C),XR(a)
      • Refutation
        • P(f);
  • Actual
    • S(D);
    • Threat
      • QAR1(C)
    • Vars
      • K(d);N_SPINR(c),P-FLIGHT::R(E)+B(F),DCHECK
      • P(e);N_GUARD::R(E)+B(F),XP(f)
      • P(f);N_GUARD::R(E)+B(F),XP(e)
      • P(g);SBLOCK::QAB1(C)
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