MESON Chess Problem Database

Problem Display
PID: 149076 (8/1QPp1KR1/1r1P1p2/1Nn2kp1/1n1P1P2/1pb2PP1/8/8 w - - 0 1)

Kostadinov, Diyan

The Problemist, 2012

8/1QPp1KR1/1r1P1p2/1Nn2kp1/1n1P1P2/1pb2PP1/8/8

#2

10 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Rxd6
      • 2.Sxd6#
    • 1...Bxd4
      • 2.Sxd4#
    • 1...Sa2
      • 2.Qd5#
    • 1...Sc2
      • 2.Qd5#
    • 1...Sd5
      • 2.Qxd5#
    • 1...Sba6
      • 2.Qd5#
    • 1...Sd3
      • 2.Qe4#
    • 1...Sa4
      • 2.Qe4#
    • 1...Se4
      • 2.Qxe4#
    • 1...Sca6
      • 2.Qe4#
    • 1...Se6
      • 2.Qe4#
    • 1...gxf4
      • 2.g4#
    • 1...g4
      • 2.fxg4#
  • Tries
    • 1.c8S?
      • threat
        • 2.Se7#
      • 1...Sd5
        • 2.Qxd5#
      • 1...Sc6!
  • Keys
    • 1.Rg6!
      • threat
        • 2.Rxf6#
      • 1...Rxd6
        • 2.Sxd6#
      • 1...Bxd4
        • 2.Sxd4#
      • 1...gxf4
        • 2.g4#
      • 1...Sd5
        • 2.Qxd5#
      • 1...Se4
        • 2.Qxe4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 8
  • Sets
    • R(g);XP(F)::S(E),XR(g)
    • B(b);XP(C)::S(E),XB(b)
    • S(c);N_GUARD::QAR2(G)
    • S(c);N_GUARD::QAR2(G),XS(c)
    • S(d);N_GUARD::QAB1(G)
    • S(d);N_GUARD::QAB1(G),XS(d)
    • P(f);SBLOCK,XP(D)::P(B)
    • P(f);OGATE::P(A),XP(f)
  • Tries
    • Try
      • P(H);
      • Threat
        • S(H)
      • Vars
        • S(c);N_GUARD::QAR2(G),XS(c)
      • Refutation
        • S(c);
  • Actual
    • R(J);
    • Threat
      • R1(J),XP(h)
    • Vars
      • R(g);XP(F)::S(E),XR(g)
      • B(b);XP(C)::S(E),XB(b)
      • P(f);SBLOCK,XP(D)::P(B)
      • S(c);N_GUARD::QAR2(G),XS(c)
      • S(d);N_GUARD::QAB1(G),XS(d)
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