MESON Chess Problem Database

Problem Display
PID: 55047 (r1Q2RB1/3qP3/2PP2n1/6p1/2p1k1Np/2n5/1BKPN1P1/5R2 w - - 0 1)

Mosiashvili, Givi

Die Schwalbe, 2003

r1Q2RB1/3qP3/2PP2n1/6p1/2p1k1Np/2n5/1BKPN1P1/5R2

#2

13 + 8

56 The Problemist 2010

SOLUTION

  • SOUND
  • Sets
    • 1...Qf5
      • 2.Qxf5#
    • 1...Qxc6
      • 2.Qf5#
    • 1...Qe8
      • 2.Qf5#
    • 1...Qxd6
      • 2.Qf5#
    • 1...Qa7
      • 2.Qf5#
    • 1...Qb7
      • 2.Qf5#
    • 1...Qc7
      • 2.Qf5#
    • 1...Qxe7
      • 2.Qf5#
    • 1...Qd8
      • 2.Qf5#
    • 1...Sb1
      • 2.Sf2#
      • 2.Sf6#
    • 1...Sd1
      • 2.Sf6#
    • 1...Sa2
      • 2.Sf2#
      • 2.Sf6#
    • 1...Sxe2
      • 2.Sf2#
      • 2.Sf6#
    • 1...Sa4
      • 2.Sf2#
      • 2.Sf6#
    • 1...Sb5
      • 2.Sf2#
      • 2.Sf6#
    • 1...Sd5
      • 2.Sf2#
    • 1...Se5
      • 2.Sf2#
      • 2.Sf6#
  • Tries
    • 1.Bd5+?
      • 1...Sxd5
        • 2.Sf2#
      • 1...Kxd5!
    • 1.R8f5?
      • threat
        • 2.Sf6#
      • 1...Qxf5
        • 2.Qxf5#
      • 1...Qxd6
        • 2.Sf2#
      • 1...Qxe7
        • 2.Sf2#
      • 1...Sf4
        • 2.Re5#
      • 1...Sd5
        • 2.Bxd5#
      • 1...Qe6!
  • Keys
    • 1.R1f5!
      • threat
        • 2.Sf2#
      • 1...Qxf5
        • 2.Qxf5#
      • 1...Sxf8
        • 2.Re5#
      • 1...Qa7
        • 2.Sf6#
      • 1...Sd1
        • 2.Bd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 1
    • REMOVED MATES = 8
  • Sets
    • Q(g);OGATE::QAB1(K),XQ(g)
    • Q(g);OGATE,XP(H)::QAB1(K)
    • Q(g);OGATE::QAB1(K)
    • Q(g);OGATE,XP(I)::QAB1(K)
    • Q(g);OGATE,XP(J)::QAB1(K)
    • S(a);::S(G)
  • Tries
    • Try
      • B(M);CHECK
      • Vars
        • S(a);SBLOCK,XB(M)::S(G)
      • Refutation
        • K(c);S_FLIGHT,XB(M)
    • Try
      • R(L);
      • Threat
        • S(G)
      • Vars
        • Q(g);OGATE,XR(L)::QAB1(K),XQ(g)
        • Q(g);XP(I)::S(G)
        • Q(g);XP(J)::S(G)
        • S(f);N_GUARD::R1(L)
        • S(a);N_GUARD::B(M),XS(a)
      • Refutation
        • Q(g);
  • Actual
    • R(A);
    • Threat
      • S(G)
    • Vars
      • Q(g);OGATE,XR(A)::QAB1(K),XQ(g)
      • S(f);N_GUARD,XR(L)::R1(A)
      • Q(g);::S(G)
      • S(a);N_GUARD::B(M)
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