MESON Chess Problem Database

Problem Display
PID: 98859 (1bN2Q2/7b/2p4B/1pR1P3/r3k1P1/r3pN1p/n1P1B1n1/7K w - - 0 1)

Stoyanov, Kiril N

Problemas, 1975

1bN2Q2/7b/2p4B/1pR1P3/r3k1P1/r3pN1p/n1P1B1n1/7K

#2

10 + 11

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rd3
      • 2.Bxd3#
      • 2.cxd3#
    • 1...Rd4
      • 2.Sg5#
    • 1...Bf5
      • 2.Qxf5#
    • 1...Bg8
      • 2.Qf5#
    • 1...Bxe5
      • 2.Rxe5#
    • 1...Bd6
      • 2.Sxd6#
    • 1...Ba7
      • 2.Sd6#
    • 1...Sc3
      • 2.Bd3#
    • 1...Se1
      • 2.Qf4#
    • 1...Sf4
      • 2.Qxf4#
    • 1...Sh4
      • 2.Qf4#
  • Tries
    • 1.Qf7?
      • threat
        • 2.Qxh7#
      • 1...Bf5
        • 2.Qxf5#
      • 1...Bg6
        • 2.Qxg6#
      • 1...Bg8
        • 2.Qg6#
        • 2.Qf5#
      • 1...Sf4
        • 2.Qxf4#
      • 1...Sh4
        • 2.Qf4#
      • 1...Ra7!
  • Keys
    • 1.Qd6!
      • threat
        • 2.Qxc6#
      • 1...Bxd6
        • 2.Sxd6#
      • 1...Rd3
        • 2.Qxd3#
        • 2.cxd3#
      • 1...Rd4
        • 2.Qxd4#
      • 1...Ra6
        • 2.Qd4#
      • 1...Bg8
        • 2.Qg6#
      • 1...Sc3
        • 2.Qd3#
      • 1...Sb4
        • 2.Qd4#
      • 1...Sf4
        • 2.Sg5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 4
    • ADDED MATES = 2
    • REMOVED MATES = 5
  • Sets
    • R(f);SBLOCK::S(D)
    • B(j);N_GUARD::QAB1(J),XB(j)
    • B(j);N_GUARD::QAB1(J)
    • B(k);OGATE,XP(G)::R1(F),XB(k)
    • B(k);N_GUARD::S(I),XB(k)
    • B(k);N_GUARD::S(I)
    • S(a);S_CUTR(c)::B(C)
    • S(b);N_GUARD::QAR1(J)
    • S(b);N_GUARD::QAR1(J),XS(b)
  • Tries
    • Try
      • Q(J);
      • Threat
        • QAB(J),XB(j)
      • Vars
        • B(j);N_GUARD::QAB1(J),XB(j)
        • B(j);N_GUARD::QAB(J),XB(j)
        • S(b);N_GUARD::QAR1(J),XS(b)
        • S(b);N_GUARD::QAR1(J)
      • Refutation
        • R(f);
  • Actual
    • Q(J);
    • Threat
      • QAB(J),XP(i)
    • Vars
      • B(k);XQ(J)::S(I),XB(k)
      • R(f);N_GUARD::QAR1(J),XR(f)
      • R(f);N_GUARD::QAR1(J)
      • B(j);N_GUARD::QAB(J)
      • S(a);S_CUTR(c)::QAB1(J)
      • S(a);S_CUTR(f)::QAR1(J)
      • S(b);SBLOCK::S(D)
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