MESON Chess Problem Database

Problem Display
PID: 43070 (1K1R4/pPp1Q3/bbP5/1q1PN3/r2k4/Np3Pp1/3Bn3/3R2r1 w - - 0 1)

Mansfield, Comins

De Waarheid, 1970

1K1R4/pPp1Q3/bbP5/1q1PN3/r2k4/Np3Pp1/3Bn3/3R2r1

#2

11 + 11

4054 Complete Mansfield/III 1999

SOLUTION

  • SOUND
  • Sets
    • 1...Qxc6
      • 2.dxc6#
    • 1...Bxb7
      • 2.Sxb5#
    • 1...b2
      • 2.Sc2#
  • Tries
    • 1.Sd3?
      • threat
        • 2.Qe3#
        • 2.Qe4#
      • 1...Kxd3
        • 2.Be1#
      • 1...Rxa3
        • 2.Qe4#
      • 1...Sc3
        • 2.Be3#
        • 2.Qe3#
      • 1...Qxd3!
    • 1.Sec4?
      • threat
        • 2.Be1#
        • 2.Qe3#
      • 1...Kd3
        • 2.Be1#
        • 2.Qe4#
      • 1...Qxc4
        • 2.Qe3#
      • 1...Rxd1
        • 2.Qe3#
      • 1...Qb4
        • 2.Qe3#
      • 1...Qa5
        • 2.Qe3#
      • 1...Re1
        • 2.Bxe1#
        • 2.Qe3#
      • 1...Ba5
        • 2.Qe3#
      • 1...Sc1
        • 2.Qe3#
      • 1...Sc3
        • 2.Be3#
        • 2.Qe3#
      • 1...Sf4
        • 2.Qe3#
      • 1...Rxa3!
  • Keys
    • 1.Sd7!
      • threat
        • 2.Qe4#
      • 1...Kd3
        • 2.Be1#
      • 1...Kxd5
        • 2.Se5#
      • 1...Qxd5
        • 2.Qe3#
      • 1...Qd3
        • 2.Qe5#
      • 1...Sc3
        • 2.Be3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 3
  • Sets
    • Q(g);OGATE,XP(G)::R(K)+P(E),XQ(g)
    • B(h);N_GUARD,XP(H)::S(C),XQ(g)
    • P(c);N_GUARD::S(C)
  • Tries
    • Try
      • S(F);
      • Threat
        • DUALS(2)
      • Vars
        • K(f);OGATEB,P-FLIGHT,XS(F)::R(A)+B(B)
        • R(e);XS(C)::QAR1(I)
      • Refutation
        • Q(g);XS(F)
    • Try
      • S(F);
      • Threat
        • DUALS(2)
      • Vars
        • Q(g);XS(F)::QAB1(I)
        • R(a);XR(A)::QAB1(I)
        • Q(g);::QAB1(I)
        • B(i);P_PINP(H)::QAB1(I)
        • S(b);::QAB1(I)
      • Refutation
        • R(e);XS(C)
  • Actual
    • S(F);
    • Threat
      • QAR1(I)
    • Vars
      • K(f);P-FLIGHT::R(A)+B(B)
      • K(f);P-FLIGHT,XP(E)::R(K)+S(F)
      • Q(g);SBLOCK,XP(E)::QAB1(I)
      • Q(g);SBLOCK::QAB1(I)
      • S(b);SBLOCK::R(A)+B(B),DCHECK
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