MESON Chess Problem Database

Problem Display
PID: 117046 (7Q/1bp1p1p1/p5K1/r1p4R/4k3/1R4p1/1n3BN1/3Nr1n1 w - - 0 1)

Kozhakin, Vladimir Vladimirovich

Apprenti Sorcier, 1992

7Q/1bp1p1p1/p5K1/r1p4R/4k3/1R4p1/1n3BN1/3Nr1n1

#2

7 + 12

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Qf8?
      • threat
        • 2.Qxe7#
        • 2.Qf4#
        • 2.Qf5#
      • 1...gxf2
        • 2.Qf4#
      • 1...Re3
        • 2.Qf4#
      • 1...Bd5
        • 2.Qf4#
        • 2.Qf5#
      • 1...Bc8
        • 2.Qf4#
      • 1...Se2
        • 2.Qxe7#
        • 2.Qf3#
        • 2.Qf5#
      • 1...Sf3
        • 2.Qxf3#
        • 2.Qf4#
        • 2.Qf5#
      • 1...Sh3
        • 2.Qxe7#
        • 2.Qf3#
        • 2.Qf5#
      • 1...Sd3
        • 2.Sc3#
        • 2.Qf5#
      • 1...Sc4
        • 2.Qf4#
        • 2.Qf5#
      • 1...c4
        • 2.Qf4#
      • 1...e6
        • 2.Qf4#
      • 1...e5!
  • Keys
    • 1.Qd8!
      • threat
        • 2.Qxe7#
      • 1...gxf2
        • 2.Sxf2#
      • 1...Re3
        • 2.Rxe3#
      • 1...Sd3
        • 2.Qxd3#
      • 1...Bd5
        • 2.Qxd5#
      • 1...Bc8
        • 2.Qd5#
      • 1...Sf3
        • 2.Sc3#
      • 1...Sc4
        • 2.Qd3#
      • 1...c4
        • 2.Qd4#
      • 1...e5
        • 2.Rh4#
      • 1...e6
        • 2.Qh4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 10
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(G);
      • Threat
        • DUALS(3)
      • Vars
        • P(d);XB(B)::QAR1(G)
        • R(a);::QAR1(G)
        • B(i);::QAR1(G)
        • P(g);::QAR1(G)
        • P(k);::QAR1(G)
      • Refutation
        • P(k);
  • Actual
    • Q(G);
    • Threat
      • QAR(G),XP(k)
    • Vars
      • P(d);XB(B)::S(A),XP(d)
      • R(a);N_GUARD::R1(D),XR(a)
      • S(c);N_GUARD::QAB1(G),XS(c)
      • B(i);N_GUARD::QAB1(G),XB(i)
      • B(i);N_GUARD::QAB1(G)
      • S(b);SBLOCK::S(A)
      • S(c);N_GUARD::QAB1(G)
      • P(g);N_GUARD::QAR1(G)
      • P(k);SBLOCK::R(E)
      • P(k);OGATE::QAR(G)
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