MESON Chess Problem Database

Problem Display
PID: 207600 (2rBB3/qR2PP1p/3k3r/p1p2Q2/8/7p/8/3K4 w - - 0 1)

Tkachenko, Sergiy Ivanovich

Sachova skladba, 2014

2rBB3/qR2PP1p/3k3r/p1p2Q2/8/7p/8/3K4

#2

7 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Rxd8
      • 2.exd8Q#
      • 2.exd8R#
  • Tries
    • 1.Bc7+?
      • 1...Kxe7
        • 2.f8Q#
      • 1...Rxc7!
    • 1.Ba4?
      • threat
        • 2.e8S#
      • 1...Rxd8
        • 2.exd8Q#
        • 2.exd8R#
      • 1...Re6!
    • 1.Bb5?
      • threat
        • 2.e8S#
      • 1...Rxd8
        • 2.exd8Q#
        • 2.exd8R#
      • 1...Re6!
    • 1.Bd7?
      • threat
        • 2.e8S#
      • 1...Re6
        • 2.Qxe6#
      • 1...Rxd8!
    • 1.Rb6+?
      • 1...Rc6
        • 2.Rxc6#
      • 1...Qxb6!
  • Keys
    • 1.Bc6!
      • threat
        • 2.Qd5#
      • 1...Kxc6
        • 2.Qd7#
      • 1...Rxc6
        • 2.e8S#
      • 1...Rh5
        • 2.Qf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • R(h);OGATE,XB(F)::PXR(h)=Q
  • Tries
    • Try
      • B(F);CHECK
      • Vars
        • K(d);S_FLIGHT,XP(D)::P=Q
      • Refutation
        • R(h);XB(F)
    • Try
      • B(G);
      • Threat
        • P=S
      • Vars
        • R(h);OGATE,XB(F)::PXR(h)=Q
      • Refutation
        • R(e);
    • Try
      • B(G);
      • Threat
        • P=S
      • Vars
        • R(h);OGATE,XB(F)::PXR(h)=Q
      • Refutation
        • R(e);
    • Try
      • B(G);
      • Threat
        • P=S
      • Vars
        • R(e);N_GUARD::QAR1(B),XR(e)
      • Refutation
        • R(h);XB(F)
    • Try
      • R(C);CHECK
      • Vars
        • R(h);N_GUARD,P_SPINR(h)::R1(C),XR(h)
      • Refutation
        • Q(f);XR(C)
  • Actual
    • B(G);
    • Threat
      • QAR1(B)
    • Vars
      • K(d);P-FLIGHT,XB(G)::QAB1(B)
      • R(h);SBLOCK,XB(G)::P=S
      • R(e);N_GUARD::QAR2(B)
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