MESON Chess Problem Database

Problem Display
PID: 93218 (3R1RB1/B3p3/2Pp1p1N/N3k1p1/2p1P2P/K2b2n1/5n2/2Q5 w - - 0 1)

Simadhinata, Januarta (Siem Giok Liam)

Arbejder-Skak, 1962

3R1RB1/B3p3/2Pp1p1N/N3k1p1/2p1P2P/K2b2n1/5n2/2Q5

#2

11 + 9

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Kxe4
      • 2.Qe3#
    • 1...Bxe4
      • 2.Sxc4#
  • Tries
    • 1.Sxc4+?
      • 1...Kxe4
        • 2.Qe3#
      • 1...Bxc4!
    • 1.Bd4+?
      • 1...Kxe4
        • 2.Qe3#
      • 1...Kxd4!
    • 1.Rxd6?
      • threat
        • 2.Re6#
      • 1...Kxe4
        • 2.Qe3#
      • 1...Bxe4
        • 2.Sxc4#
      • 1...Sfxe4
        • 2.Rd5#
      • 1...Sgxe4
        • 2.Rd5#
      • 1...exd6
        • 2.Re8#
      • 1...e6
        • 2.Rxe6#
      • 1...Kxd6!
  • Keys
    • 1.Rxf6!
      • threat
        • 2.Re6#
      • 1...Kxe4
        • 2.Qe3#
      • 1...Kxf6
        • 2.Qxg5#
      • 1...Bxe4
        • 2.Qc3#
      • 1...Sfxe4
        • 2.Sg4#
      • 1...Sgxe4
        • 2.Rf5#
      • 1...exf6
        • 2.Re8#
      • 1...e6
        • 2.Rxe6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • K(e);OGATEB,P-FLIGHT,XP(C)::QAR1(A)
    • B(b);N_GUARD,SBLOCK,XP(C)::S(E),XP(d)
  • Tries
    • Try
      • S(E);CHECK,XP(d)
      • Vars
        • K(e);P-FLIGHT,XP(C)::QAR1(A)
      • Refutation
        • B(b);XS(E)
    • Try
      • B(H);CHECK
      • Vars
        • K(e);P-FLIGHT,XP(C)::QAR1(A)
      • Refutation
        • K(e);P_SPINP(g),S_FLIGHT,XB(H)
    • Try
      • R(I);XP(g)
      • Threat
        • R1(I)
      • Vars
        • K(e);OGATEB,P-FLIGHT,XP(C)::QAR1(A)
        • B(b);N_GUARD,SBLOCK,XP(C)::S(E),XP(d)
        • S(a);SBLOCK,XP(C)::R1(I)
        • S(c);SBLOCK,XP(C)::R1(I)
        • P(i);OGATEB,SBLOCK,XR(I)::R(J)
        • P(i);::R1(I),XP(i)
      • Refutation
        • K(e);S_FLIGHT,XR(I)
  • Actual
    • R(J);XP(h)
    • Threat
      • R1(J)
    • Vars
      • K(e);OGATEB,P-FLIGHT,XP(C)::QAR1(A)
      • K(e);S_FLIGHT,XR(J)::QAB1(A),XP(f)
      • B(b);SBLOCK,XP(C)::QAB(A)
      • S(a);N_GUARD,SBLOCK,XP(C)::S(G)
      • S(c);N_GUARD,SBLOCK,XP(C)::R1(J)
      • P(i);OGATEB,SBLOCK,XR(J)::R(I)
      • P(i);::R1(J),XP(i)
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