MESON Chess Problem Database

Problem Display
PID: 55882 (2R5/7n/rP1R1P1p/p2N2pQ/1P1BpP2/1pPkP3/2b5/b2n1NK1 w - - 0 1)

Mansfield, Comins

Sp. HM., Arbeiter Zeitung, 1978

2R5/7n/rP1R1P1p/p2N2pQ/1P1BpP2/1pPkP3/2b5/b2n1NK1

#2

13 + 11

4054 Complete Mansfield/III 1999

SOLUTION

  • SOUND
  • Sets
    • 1...Bb1
      • 2.Qxd1#
    • 1...axb4
      • 2.Sxb4#
    • 1...gxf4
      • 2.Sxf4#
  • Tries
    • 1.Be5?
      • threat
        • 2.Se7#
      • 1...Rxb6
        • 2.Sxb6#
      • 1...Bxc3
        • 2.Sxc3#
      • 1...Sxc3
        • 2.Sxc3#
      • 1...Sxe3
        • 2.Sdxe3#
      • 1...Sxf6
        • 2.Sxf6#
      • 1...Bb1
        • 2.Qxd1#
      • 1...g4!
    • 1.fxg5?
      • threat
        • 2.Sf4#
      • 1...Bb1
        • 2.Qxd1#
      • 1...hxg5!
  • Keys
    • 1.Se7!
      • threat
        • 2.Be5#
      • 1...Rxb6
        • 2.Bxb6#
      • 1...Bxc3
        • 2.Bxc3#
      • 1...Sxc3
        • 2.Bxc3#
      • 1...Sxe3
        • 2.Bxe3#
      • 1...Sxf6
        • 2.Bxf6#
      • 1...Bb1
        • 2.Qxd1#
      • 1...g4
        • 2.Qb5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 2
  • Sets
    • B(c);N_GUARD::QAR2(I),XS(b)
    • P(g);XP(E)::S(H),XP(g)
    • P(h);XP(G)::S(H),XP(h)
  • Tries
    • Try
      • B(F);
      • Threat
        • R(K)+S(H)
      • Vars
        • R(i);XP(J)::R(K)+S(H),XR(i)
        • B(a);XP(C)::R(K)+S(H),XB(a)
        • S(b);XP(C)::R(K)+S(H),XS(b)
        • S(b);XP(D)::R(K)+S(H),XS(b)
        • S(k);XP(L)::R(K)+S(H),XS(k)
        • B(c);N_GUARD::QAR2(I),XS(b)
      • Refutation
        • P(h);
    • Try
      • P(G);XP(h)
      • Threat
        • S(H)
      • Vars
        • B(c);N_GUARD::QAR2(I),XS(b)
      • Refutation
        • P(j);XP(G)
  • Actual
    • S(H);
    • Threat
      • R(K)+B(F)
    • Vars
      • R(i);OGATE,XP(J)::R(K)+B(F),XR(i)
      • B(a);OGATE,XP(C)::R(K)+B(F),XB(a)
      • S(b);OGATE,XP(C)::R(K)+B(F),XS(b)
      • S(b);OGATE,XP(D)::R(K)+B(F),XS(b)
      • S(k);OGATE,XP(L)::R(K)+B(F),XS(k)
      • B(c);N_GUARD::QAR2(I),XS(b)
      • P(h);OGATE::QAB(I)
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