MESON Chess Problem Database

Problem Display
PID: 6589 (b1Q5/3N4/2npnp2/Rppk4/3p1r1r/1P2PP2/1qPR2Bp/3N2bK w - - 0 1)

Mansfield, Comins

Comm., Budapest Chess Club, 1932-1933

b1Q5/3N4/2npnp2/Rppk4/3p1r1r/1P2PP2/1qPR2Bp/3N2bK

#2

11 + 14

3147 Chess Problems: Introduction to an Art 1963
3098 FIDE Album (1914-1944) (I) 1971
3550 Complete Mansfield/II 1997

SOLUTION

  • SOUND
  • Sets
    • 1...Qc1
      • 2.Sc3#
    • 1...Qa3
      • 2.Sc3#
    • 1...Qc3
      • 2.Sxc3#
    • 1...Qb1
      • 2.Sc3#
    • 1...Qa2
      • 2.Sc3#
    • 1...Rfg4
      • 2.fxg4#
    • 1...Rf5
      • 2.f4#
    • 1...Bxe3
      • 2.Sxe3#
    • 1...Se5
      • 2.Sb6#
  • Tries
    • 1.Sxf6+?
      • 1...Rxf6
        • 2.f4#
      • 1...Ke5!
  • Keys
    • 1.exd4!
      • threat
        • 2.Sb6#
      • 1...Qxd4
        • 2.Sc3#
      • 1...Rxf3
        • 2.Sxf6#
      • 1...Rxd4
        • 2.f4#
      • 1...Bxd4
        • 2.Se3#
      • 1...Scxd4
        • 2.Qxa8#
      • 1...Sexd4
        • 2.Qg8#
      • 1...cxd4
        • 2.c4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 9
  • Sets
    • Q(b);N_GUARD::S(A)
    • Q(b);N_GUARD::S(A),XQ(b)
    • R(e);OGATE::B(E)+P(H),XR(e)
    • R(e);OGATE::B(E)+P(H)
    • B(a);XP(G)::S(A),XB(a)
    • S(j);SBLOCK::S(J)
  • Tries
    • Try
      • S(J);CHECK,XP(m)
      • Vars
        • R(e);OGATE,XS(J)::B(E)+P(H)
      • Refutation
        • K(i);N_SPINP(d),P-FLIGHT
  • Actual
    • P(G);XP(d)
    • Threat
      • S(J)
    • Vars
      • Q(b);N_GUARD,P_SPINQ(b),XP(G)::S(A)
      • R(e);N_GUARD,P_SPINR(e),XP(H)::S(J),XP(m)
      • R(e);OGATE,P_SPINR(e),XP(G)::B(E)+P(H)
      • B(a);N_GUARD,P_SPINB(a),XP(G)::S(A)
      • S(j);OGATEB,P_SPINS(j),XP(G)::QAB(K),XB(n)
      • S(l);OGATEB,P_SPINS(l),XP(G)::QAB(K)
      • P(h);P_SPINP(h),S_CUTP(g),XP(G)::P(C)
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