MESON Chess Problem Database

Problem Display
PID: 168955 (B3R3/1r4P1/3P2pK/2pPNNQ1/2p1kB2/2r1P1P1/8/bb1R3n w - - 0 1)

Murashev, Pavel Aleksandrovich

3rd Prize, SuperProblem, 2015

B3R3/1r4P1/3P2pK/2pPNNQ1/2p1kB2/2r1P1P1/8/bb1R3n

#2

13 + 9

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Sxg3
      • 2.Sxg3#
  • Tries
    • 1.Sh4?
      • threat
        • 2.Sd7#
        • 2.Qxg6#
      • 1...Rxe3
        • 2.Qxg6#
      • 1...Rxg7
        • 2.Sf7#
      • 1...Sxg3
        • 2.Sd7#
      • 1...Bd3
        • 2.Sd7#
      • 1...Re7
        • 2.Qxg6#
      • 1...Rc1
        • 2.Qxg6#
      • 1...Rc2
        • 2.Qxg6#
      • 1...Ra3
        • 2.Qxg6#
      • 1...Rcb3
        • 2.Qxg6#
      • 1...Rd7
        • 2.Sxd7#
        • 2.Qxg6#
      • 1...Rf7
        • 2.Sxf7#
      • 1...Rb8
        • 2.Qxg6#
      • 1...Rd3!
    • 1.Qxg6?
      • threat
        • 2.Sh4#
        • 2.Se7#
      • 1...Rxg7
        • 2.Sxg7#
      • 1...Sxg3
        • 2.Sxg3#
      • 1...Rd3
        • 2.Se7#
      • 1...Bd3
        • 2.Se7#
      • 1...Re7
        • 2.Sd4#
        • 2.Sh4#
        • 2.Sxe7#
      • 1...Rf7!
  • Keys
    • 1.Sd4!
      • threat
        • 2.Sd7#
      • 1...Kxd5
        • 2.Sd3#
      • 1...Rxg7
        • 2.Sf7#
      • 1...cxd4
        • 2.Rxd4#
      • 1...Re7
        • 2.Qxg6#
      • 1...Rd7
        • 2.Sxd7#
        • 2.Qxg6#
      • 1...Rf7
        • 2.Sxf7#
      • 1...Rb8
        • 2.Qxg6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 1
  • Sets
    • S(c);XP(C)::S(G),XS(c)
  • Tries
    • Try
      • S(G);
      • Threat
        • DUALS(2)
      • Vars
        • R(d);XP(B)::QAB(H),XP(h)
        • R(i);N_GUARD,XP(K)::R(M)+S(F)
        • S(c);XP(C)::R(M)+S(F)
        • B(b);::R(M)+S(F)
        • R(i);::QAB(H),XP(h)
        • R(d);::QAB(H),XP(h)
        • R(i);N_GUARD::R(M)+S(F),XR(i)
      • Refutation
        • R(d);
    • Try
      • Q(H);XP(h)
      • Threat
        • DUALS(2)
      • Vars
        • R(i);XP(K)::QAB(H)+S(G),XR(i)
        • S(c);XP(C)::QAB(H)+S(G),DCHECK,XS(c)
        • R(d);::QAB(H)+S(G)
        • B(b);::QAB(H)+S(G)
      • Refutation
        • R(i);
  • Actual
    • S(G);
    • Threat
      • R(M)+S(F)
    • Vars
      • K(f);P_SPINR(i),S_FLIGHT,XP(E)::QAR(H)+S(F)
      • R(i);N_GUARD,XP(K)::R(M)+S(F)
      • P(g);OGATE,XS(G)::R1(A),XP(g)
      • R(i);::QAB(H),XP(h)
      • R(i);N_GUARD::R(M)+S(F),XR(i)
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