MESON Chess Problem Database

Problem Display
PID: 58954 (K3N3/5b2/Q4p2/b1RPkn1n/2p5/4P3/1NBR1p2/3r1q2 w - - 0 1)

Zalokotsky, Roman Fedorovich (aka Fedorovich, Roman)

Troll, 1998

K3N3/5b2/Q4p2/b1RPkn1n/2p5/4P3/1NBR1p2/3r1q2

#2

9 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Qg2
      • 2.Sxc4#
    • 1...Qh3
      • 2.Sxc4#
    • 1...Qe1
      • 2.Sxc4#
    • 1...Qg1
      • 2.Sxc4#
    • 1...Qh1
      • 2.Sxc4#
    • 1...Bxd5+
      • 2.Rcxd5#
    • 1...Be6
      • 2.Qxe6#
      • 2.dxe6#
    • 1...Bg6
      • 2.Qe6#
    • 1...Bxe8
      • 2.Qe6#
    • 1...Sxe3
      • 2.Qd6#
    • 1...Sfg3
      • 2.Qd6#
    • 1...Sd4
      • 2.Qd6#
    • 1...Sh4
      • 2.Qd6#
    • 1...Sd6
      • 2.Qxd6#
    • 1...Sh6
      • 2.Qd6#
    • 1...Se7
      • 2.Qd6#
    • 1...Sfg7
      • 2.Qd6#
    • 1...Shg3
      • 2.Qxf6#
    • 1...Sf4
      • 2.Qxf6#
    • 1...Shg7
      • 2.Qxf6#
  • Tries
    • 1.d6+?
      • 1...Ke6
        • 2.Bxf5#
        • 2.Qc8#
      • 1...Bd5+!
  • Keys
    • 1.Qxc4!
      • threat
        • 2.Qe4#
      • 1...Bxd5+
        • 2.Qxd5#
      • 1...Qxc4
        • 2.Sxc4#
      • 1...Bxe8
        • 2.d6#
      • 1...Qg2
        • 2.Sd3#
      • 1...Qd3
        • 2.Sxd3#
      • 1...Qh1
        • 2.Sd3#
      • 1...Sfg3
        • 2.Qd4#
      • 1...Sd4
        • 2.Qxd4#
      • 1...Sd6
        • 2.Qd4#
      • 1...Shg3
        • 2.Qf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 8
    • ADDED MATES = 2
    • REMOVED MATES = 11
  • Sets
    • Q(b);N_GUARD,P_PINP(F)::S(A),XP(d)
    • Q(b);N_GUARD::S(A),XP(d)
    • B(j);CHECK,OGATE,P_SPINB(j),XP(F)::R1(E),XB(j)
    • B(j);N_GUARD::QAR1(G)
    • B(j);N_GUARD,XS(I)::QAR1(G)
    • S(g);N_GUARD,XP(D)::QAB1(G)
    • S(g);N_GUARD::QAB1(G)
    • S(g);N_GUARD::QAB1(G),XS(g)
    • S(h);N_GUARD::QAB1(G),XP(i)
  • Tries
    • Try
      • P(F);CHECK
      • Refutation
        • B(j);CHECK,P_SPINB(j)
  • Actual
    • Q(G);XP(d)
    • Threat
      • QAR1(G)
    • Vars
      • B(j);CHECK,OGATE,P_SPINB(j),XP(F)::QAR1(G),XB(j)
      • Q(b);XQ(G)::S(A),XQ(b)
      • B(j);N_GUARD,XS(I)::R(E)+P(F)
      • Q(b);N_GUARD,P_PINP(F)::S(A)
      • Q(b);N_GUARD::S(A),XQ(b)
      • S(g);N_GUARD::QAB1(G)
      • S(g);N_GUARD::QAB1(G),XS(g)
      • S(h);N_GUARD::QAB1(G)
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