MESON Chess Problem Database

Problem Display
PID: 21593 (4K3/1b2pN2/p2p1p2/3k1Pp1/B1R1n2R/7r/Q6r/b3q3 w - - 0 1)

Mansfield, Comins

2nd Place, Western Daily Mercury, 1919

(First published on Fri Sep 12 1919)

4K3/1b2pN2/p2p1p2/3k1Pp1/B1R1n2R/7r/Q6r/b3q3

#2

7 + 12

3202 Complete Mansfield/I 1996
15239 Valois Notebooks 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Bc6+
      • 2.Bxc6#
    • 1...Bc8
      • 2.Bc6#
    • 1...Sf2
      • 2.Rc3#
    • 1...Sc3
      • 2.Rhd4#
    • 1...Sg3
      • 2.Rc2#
    • 1...Sc5
      • 2.Rcd4#
  • Tries
    • 1.Rc3+?
      • 1...Kd4
        • 2.Qc4#
      • 1...Rxa2!
  • Keys
    • 1.Bd7!
      • threat
        • 2.Be6#
      • 1...Bc6
        • 2.Bxc6#
      • 1...Bc8
        • 2.Bc6#
      • 1...Sd2
        • 2.Qa5#
      • 1...Sf2
        • 2.Rc3#
      • 1...Sc3
        • 2.Rhd4#
      • 1...Sg3
        • 2.Rc2#
      • 1...Sc5
        • 2.Rcd4#
      • 1...e6
        • 2.Bxe6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • B(k);CHECK,N_GUARD::B(B),XB(k)
    • B(k);N_GUARD::B(B)
    • S(e);S_CUTR(c)::QAB(A)+R(C)
    • S(e);OGATE::R1(D)
    • S(e);S_CUTR(d)::QAB(A)+R(C)
    • S(e);SBLOCK::QAB(A)+R(C),DCHECK
  • Tries
    • Try
      • R(C);CHECK
      • Vars
        • K(f);P-FLIGHT,P_SPINS(e)::QAR1(A)
      • Refutation
        • R(c);XQ(A)
  • Actual
    • B(B);
    • Threat
      • B(B)
    • Vars
      • B(k);N_GUARD,P_PINB(B)::B(B),XB(k)
      • B(k);N_GUARD::B(B)
      • S(e);N_GUARD,S_CUTQ(b)::QAR(A)
      • S(e);S_CUTR(c)::QAB(A)+R(C)
      • S(e);OGATE::R1(D)
      • S(e);S_CUTR(d)::QAB(A)+R(C)
      • S(e);SBLOCK::QAB(A)+R(C),DCHECK
      • P(l);::B(B),XP(l)
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