MESON Chess Problem Database

Problem Display
PID: 17936 (2n1R2q/3N3Q/K3B1r1/2P5/1N2k1P1/2R1P1b1/3P4/B7 w - - 0 1)

Mansfield, Comins

Chess Life, 1952

2n1R2q/3N3Q/K3B1r1/2P5/1N2k1P1/2R1P1b1/3P4/B7

#2

12 + 5

3550 Complete Mansfield/II 1997

SOLUTION

  • SOUND
  • Sets
    • 1...Qxc3
      • 2.Qh1#
    • 1...Qd4
      • 2.Qh1#
    • 1...Qe5
      • 2.Qh1#
    • 1...Qg7
      • 2.Qh1#
    • 1...Qxe8
      • 2.Qh1#
    • 1...Qg8
      • 2.Qh1#
    • 1...Bd6
      • 2.Bd5#
    • 1...Sb6
      • 2.Bd5#
    • 1...Sd6
      • 2.Bd5#
  • Tries
    • 1.Rc4+?
      • 1...Qd4
        • 2.Qh1#
      • 1...Kf3!
  • Keys
    • 1.Se5!
      • threat
        • 2.Rc4#
      • 1...Kxe5
        • 2.Rc4#
      • 1...Qxe5
        • 2.Qh1#
      • 1...Bxe5
        • 2.Qb7#
      • 1...Sb6
        • 2.Bf5#
      • 1...Sd6
        • 2.Bd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 6
  • Sets
    • Q(e);N_GUARD,XR(C)::QAB(K)
    • Q(e);N_GUARD::QAB(K)
    • Q(e);N_GUARD,XR(L)::QAB(K)
    • B(a);N_PINB(I)::R(L)+B(I),DCHECK
    • S(d);N_PINB(I)::R(L)+B(I),DCHECK
  • Tries
    • Try
      • R(C);CHECK
      • Vars
        • Q(e);P_SPINQ(e)::QAB(K)
      • Refutation
        • K(b);N_SPINR(c),S_FLIGHT
  • Actual
    • S(J);
    • Threat
      • R(C)
    • Vars
      • K(b);N_SPINR(c),P-FLIGHT,XS(J)::B(A)+R(C)
      • Q(e);N_GUARD,SBLOCK,XS(J)::QAB(K)
      • B(a);SBLOCK,XS(J)::QAB(K)
      • S(d);N_PINB(I)::B(I)
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