MESON Chess Problem Database

Problem Display
PID: 267005 (3R3B/1Kp5/2PPNq2/Q1Nk2pR/8/pP2pr2/8/7b w - - 0 1)

Bakaev, IA

Zadachi i Etyudi, 2012

3R3B/1Kp5/2PPNq2/Q1Nk2pR/8/pP2pr2/8/7b

#2

10 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Qa1
      • 2.Sxc7#
      • 2.dxc7#
    • 1...Qb2
      • 2.Sxc7#
      • 2.dxc7#
    • 1...Qc3
      • 2.Sxc7#
      • 2.dxc7#
    • 1...Qd4
      • 2.Sxc7#
      • 2.dxc7#
    • 1...Qe7
      • 2.dxe7#
    • 1...Qf4
      • 2.Sxc7#
    • 1...Qf5
      • 2.Sxc7#
      • 2.dxc7#
    • 1...Qg6
      • 2.Sxc7#
      • 2.dxc7#
    • 1...Qh6
      • 2.Sxc7#
      • 2.dxc7#
    • 1...Qf8
      • 2.Sxc7#
  • Tries
    • 1.Bxf6?
      • threat
        • 2.Sxc7#
        • 2.dxc7#
      • 1...cxd6
        • 2.Sc7#
      • 1...Rxf6!
    • 1.Rxg5+?
      • 1...Qe5
        • 2.Rxe5#
        • 2.dxc7#
      • 1...Qxg5
        • 2.Sxc7#
      • 1...Qf5
        • 2.Sxc7#
        • 2.dxc7#
      • 1...Rf5!
    • 1.Qc3?
      • threat
        • 2.Sxc7#
      • 1...Qxc3
        • 2.dxc7#
      • 1...Qxd8
        • 2.Qd4#
        • 2.Qe5#
        • 2.Qd3#
      • 1...Qxe6
        • 2.Qd4#
        • 2.Qc4#
      • 1...cxd6
        • 2.Sc7#
      • 1...Qe7
        • 2.Qd4#
        • 2.Qe5#
        • 2.Qd3#
        • 2.Qc4#
        • 2.dxe7#
      • 1...Qf7
        • 2.Qd4#
        • 2.Qe5#
        • 2.Qd3#
        • 2.Qc4#
      • 1...Qg7!
    • 1.dxc7+?
      • 1...Qxd8
        • 2.cxd8Q#
        • 2.cxd8R#
      • 1...Ke5!
  • Keys
    • 1.Sxg5!
      • threat
        • 2.Sce6#
      • 1...Kd4
        • 2.Sge6#
      • 1...Ke5
        • 2.Sce6#
      • 1...Qxg5
        • 2.dxc7#
      • 1...Qxd8
        • 2.Sce4#
      • 1...Qc3
        • 2.dxc7#
      • 1...Qd4
        • 2.dxc7#
      • 1...Qe6
        • 2.Sd3#
        • 2.Sa4#
        • 2.Sce4#
        • 2.Sa6#
        • 2.Scxe6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 3
  • Sets
    • Q(g);OGATE::R(I)+P(F),XQ(g)
    • Q(g);::S(G),XP(h)
  • Tries
    • Try
      • B(J);XQ(g)
      • Threat
        • DUALS(2)
      • Vars
        • P(h);XP(F)::S(G)
      • Refutation
        • R(d);XB(J)
    • Try
      • R(D);CHECK,XP(f)
      • Vars
        • Q(g);XR(D)::S(G),XP(h)
      • Refutation
        • R(d);P_SPINR(d)
    • Try
      • Q(B);
      • Threat
        • S(G),XP(h)
      • Vars
        • Q(g);N_GUARD,XQ(B)::R(I)+P(F),XP(h)
        • P(h);XP(F)::S(G)
      • Refutation
        • Q(g);
    • Try
      • P(F);CHECK,XP(h)
      • Vars
        • Q(g);OGATE,XR(I)::PXQ(g)=Q
      • Refutation
        • K(e);P-FLIGHT,P_SPINQ(g)
  • Actual
    • S(G);XP(f)
    • Threat
      • QAR(B)+S(C)
    • Vars
      • K(e);P-FLIGHT,P_SPINQ(g),S_CUTR(d)::S(G)
      • K(e);P-FLIGHT,P_SPINQ(g)::QAR(B)+S(C)
      • Q(g);N_GUARD,P_SPINQ(g),XS(G)::R(I)+P(F),XP(h)
      • Q(g);XR(I)::QAR(B)+S(C)
      • Q(g);N_GUARD::R(I)+P(F),XP(h)
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