MESON Chess Problem Database

Problem Display
PID: 108003 (7Q/3R4/8/K1pr1n2/2k5/1p3bR1/2P1N3/b2N4 w - - 0 1)

Mirkailo, Dragoljub

Scacco!, 1999

7Q/3R4/8/K1pr1n2/2k5/1p3bR1/2P1N3/b2N4

#2

7 + 7

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rd3
      • 2.cxd3#
    • 1...Bb2
      • 2.Sxb2#
    • 1...Bc3+
      • 2.Qxc3#
    • 1...Bh1
      • 2.cxb3#
    • 1...Bxe2
      • 2.cxb3#
    • 1...Bg2
      • 2.cxb3#
    • 1...Be4
      • 2.cxb3#
    • 1...Bg4
      • 2.cxb3#
    • 1...Bh5
      • 2.cxb3#
    • 1...Se3
      • 2.Sxe3#
    • 1...Sxg3
      • 2.Se3#
    • 1...Sd4
      • 2.Se3#
    • 1...Sh4
      • 2.Se3#
    • 1...Sd6
      • 2.Se3#
    • 1...Sh6
      • 2.Se3#
    • 1...Se7
      • 2.Se3#
    • 1...Sg7
      • 2.Se3#
    • 1...b2
      • 2.Qc3#
  • Tries
    • 1.Qh4+?
      • 1...Bd4
        • 2.Sb2#
      • 1...Be4
        • 2.cxb3#
      • 1...Bg4
        • 2.cxb3#
      • 1...Sd4
        • 2.Se3#
      • 1...Sxh4
        • 2.Se3#
      • 1...Rd4!
  • Keys
    • 1.Qb2!
      • threat
        • 2.Qxb3#
      • 1...Bxb2
        • 2.Sxb2#
      • 1...Bxe2
        • 2.cxb3#
      • 1...bxc2
        • 2.Qb5#
      • 1...Rd3
        • 2.cxd3#
      • 1...Sd4
        • 2.Se3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 14
  • Sets
    • R(f);OGATE::P(B),XR(f)
    • B(a);N_GUARD::S(A),XB(a)
    • B(a);CHECK,N_GUARD::QAR1(G),XB(a)
    • B(c);::P(B),XP(b)
    • B(c);XS(C)::P(B),XP(b)
    • S(g);N_GUARD::S(A),XS(g)
    • S(g);N_GUARD,XR(D)::S(A)
    • S(g);N_GUARD::S(A)
    • P(b);S_CUTB(a)::QAR1(G)
  • Tries
    • Try
      • Q(G);CHECK
      • Vars
        • B(a);P_SPINB(a)::S(A)
        • B(c);P_SPINB(c)::P(B),XP(b)
        • S(g);P_SPINS(g)::S(A)
        • S(g);XQ(G)::S(A)
      • Refutation
        • R(f);P_SPINR(f)
  • Actual
    • Q(G);
    • Threat
      • QAB1(G),XP(b)
    • Vars
      • B(a);XQ(G)::S(A),XB(a)
      • B(c);XS(C)::P(B),XP(b)
      • P(b);OGATE,XP(B)::QAB1(G)
      • R(f);OGATE::P(B),XR(f)
      • S(g);N_GUARD::S(A)
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