MESON Chess Problem Database

Problem Display
PID: 6939 (2Qr2nB/1NPPp3/2N1kP1p/qnp3bP/3pPpR1/7B/6PK/8 w - - 0 1)

Mansfield, Comins

Recomm., BCF 021. Ty., 1935-1936

2Qr2nB/1NPPp3/2N1kP1p/qnp3bP/3pPpR1/7B/6PK/8

#2

13 + 11

56 The Problemist 1954
3098 FIDE Album (1914-1944) (I) 1971
3550 Complete Mansfield/II 1997

SOLUTION

  • SOUND
  • Sets
    • 1...Qe1
      • 2.cxd8S#
    • 1...Qd2
      • 2.cxd8S#
    • 1...Qc3
      • 2.cxd8S#
    • 1...Qb4
      • 2.cxd8S#
    • 1...Qa1
      • 2.cxd8S#
    • 1...Qa2
      • 2.cxd8S#
    • 1...Qa3
      • 2.cxd8S#
    • 1...Qa4
      • 2.cxd8S#
    • 1...Qa6
      • 2.cxd8S#
    • 1...Qa7
      • 2.cxd8S#
    • 1...Qa8
      • 2.cxd8S#
    • 1...Rxd7
      • 2.Qxg8#
    • 1...Re8
      • 2.dxe8Q#
      • 2.dxe8B#
      • 2.d8S#
    • 1...Rf8
      • 2.d8S#
    • 1...Bxf6
      • 2.Rg7#
    • 1...Sd6
      • 2.Sbxd8#
  • Keys
    • 1.fxe7!
      • threat
        • 2.Rxf4#
      • 1...Kf7
        • 2.Sbxd8#
      • 1...Sxe7
        • 2.Scxd8#
      • 1...Qc3
        • 2.cxd8S#
      • 1...Qa3
        • 2.cxd8S#
      • 1...Rf8
        • 2.d8S#
      • 1...Bf6
        • 2.Rg7#
      • 1...Sd6
        • 2.Sbxd8#
      • 1...Sf6
        • 2.exd8S#
      • 1...f3
        • 2.Rf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 10
  • Sets
    • Q(c);N_GUARD::PXR(j)=S
    • Q(c);N_GUARD,P_PINP(A)::PXR(j)=S
    • R(j);OGATE,P_SPINR(j),SBLOCK,XP(K)::QAB(L),XS(k)
    • R(j);OGATE::P=S
    • B(f);OGATE,SBLOCK,XP(H)::B(C)+R(E)
    • S(d);SBLOCK::S(I),XR(j)
  • Actual
    • P(H);XP(i)
    • Threat
      • B(C)+R(E),XP(b)
    • Vars
      • K(g);S_FLIGHT::S(I),XR(j)
      • S(k);SBLOCK,XP(H)::S(G),XR(j)
      • Q(c);N_GUARD::PXR(j)=S
      • R(j);OGATE::P=S
      • B(f);OGATE,SBLOCK::B(C)+R(E)
      • S(d);SBLOCK::S(I),XR(j)
      • S(k);S_CUTB(f)::PXR(j)=S
      • P(b);::B(C)+R(E)
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