MESON Chess Problem Database

Problem Display
PID: 171226 (4rnN1/bbQpPKp1/5P2/1B1kp1p1/6rR/5P2/1nNP4/8 w - - 0 1)

Dikusarov, Andrey Nikolayovich

Sachmatija, 2012

4rnN1/bbQpPKp1/5P2/1B1kp1p1/6rR/5P2/1nNP4/8

#2

10 + 11

SOLUTION

  • SOUND
  • Sets
    • 1...Rg1
      • 2.Sb4#
    • 1...Rg2
      • 2.Sb4#
    • 1...Rg3
      • 2.Sb4#
    • 1...Rb4
      • 2.Sxb4#
    • 1...Rd4
      • 2.Se3#
    • 1...Re4
      • 2.fxe4#
    • 1...Rxe7+
      • 2.Sxe7#
    • 1...Bd4
      • 2.Sb4#
    • 1...gxf6
      • 2.Sxf6#
  • Tries
    • 1.Se3+?
      • 1...Kd4
        • 2.Qc3#
      • 1...Bxe3!
    • 1.Sb4+?
      • 1...Kd4
        • 2.Qc3#
      • 1...Rxb4!
  • Keys
    • 1.d4!
      • threat
        • 2.Qxe5#
      • 1...Rxe7+
        • 2.Sxe7#
      • 1...Rxd4
        • 2.Se3#
      • 1...Bxd4
        • 2.Sb4#
      • 1...exd4
        • 2.Sb4#
      • 1...gxf6
        • 2.Sxf6#
      • 1...Re4
        • 2.fxe4#
      • 1...Bb8
        • 2.Qc5#
      • 1...Sd3
        • 2.Bc4#
      • 1...Sc4
        • 2.Bxc4#
      • 1...Sg6
        • 2.Qxd7#
      • 1...e4
        • 2.Qe5#
      • 1...d6
        • 2.Qxb7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 4
  • Sets
    • R(b);N_GUARD::S(A)
    • R(b);N_GUARD::S(A),XR(b)
    • R(b);S_CUTB(f)::S(A)
    • R(b);OGATE::P(C),XR(b)
    • R(j);CHECK,XP(H)::S(J),XR(j)
    • B(f);SBLOCK,S_CUTR(b)::S(A)
    • P(i);XP(F)::S(J),XP(i)
  • Tries
    • Try
      • S(A);CHECK
      • Vars
        • K(c);P-FLIGHT,P_SPINR(b)::QAB1(G)
      • Refutation
        • B(f);XS(A)
    • Try
      • S(A);CHECK
      • Vars
        • K(c);P-FLIGHT,P_SPINR(b)::QAB1(G)
      • Refutation
        • R(b);XS(A)
  • Actual
    • P(B);
    • Threat
      • QAR1(G),XP(d)
    • Vars
      • R(j);CHECK,XP(H)::S(J),XR(j)
      • R(b);XP(B)::S(A)
      • B(f);SBLOCK,XP(B)::S(A)
      • P(d);SBLOCK,XP(B)::S(A)
      • P(i);XP(F)::S(J),XP(i)
      • R(b);OGATE::P(C),XR(b)
      • B(f);N_GUARD::QAR1(G)
      • S(a);N_GUARD::B(E)
      • S(a);N_GUARD::B(E),XS(a)
      • S(k);N_GUARD::QAR2(G),XP(h)
      • P(d);::QAR1(G)
      • P(h);SBLOCK::QAB(G),XB(g)
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