MESON Chess Problem Database

Problem Display
PID: 96444 (R4r2/p7/1p4nR/1Bk1P3/8/K1Nn4/1P2Nb2/2Q5 w - - 0 1)

Iborra Yperez de Sario, Jose

Problemas, 1976

R4r2/p7/1p4nR/1Bk1P3/8/K1Nn4/1P2Nb2/2Q5

#2

9 + 7

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rf3
      • 2.Rc8#
    • 1...Rf4
      • 2.Rc8#
    • 1...Rf5
      • 2.Rc8#
    • 1...Rc8
      • 2.Rxc8#
    • 1...Be1
      • 2.Qe3#
    • 1...Be3
      • 2.Qxe3#
    • 1...Bg3
      • 2.Qe3#
    • 1...Bh4
      • 2.Qe3#
    • 1...Sxc1
      • 2.b4#
    • 1...Se1
      • 2.b4#
    • 1...Sdf4
      • 2.b4#
    • 1...Sgf4
      • 2.Rc6#
    • 1...Sh4
      • 2.Rc6#
    • 1...Sh8
      • 2.Rc6#
  • Keys
    • 1.Qf4!
      • threat
        • 2.Qc4#
      • 1...Rxf4
        • 2.Rc8#
      • 1...Sxb2
        • 2.Qb4#
      • 1...Sdxf4
        • 2.b4#
      • 1...Sdxe5
        • 2.Qb4#
      • 1...Sgxf4
        • 2.Rc6#
      • 1...Sgxe5
        • 2.Qxf8#
      • 1...Bd4
        • 2.Qxd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 11
  • Sets
    • R(g);N_GUARD::R(I)
    • R(g);N_GUARD::R(I),XR(g)
    • B(a);N_GUARD::QAB(A)
    • B(a);N_GUARD::QAB(A),XB(a)
    • S(b);N_GUARD,XQ(A)::P(B)
    • S(b);N_GUARD::P(B)
    • S(e);OGATE::R1(H)
  • Actual
    • Q(A);
    • Threat
      • QAR1(A)
    • Vars
      • R(g);N_GUARD,XQ(A)::R(I)
      • S(b);N_GUARD,XP(B)::QAB1(A)
      • S(b);N_GUARD,XQ(A)::P(B)
      • S(b);N_GUARD,XP(G)::QAB1(A)
      • S(e);OGATE,XQ(A)::R1(H)
      • S(e);N_GUARD,XP(G)::QAB(A),XR(g)
      • B(a);N_GUARD::QAB1(A),XB(a)
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