MESON Chess Problem Database

Problem Display
PID: 194133 (1R1K1nN1/1N1bpp1n/Ppk1pbp1/Rp2Q1p1/1r4P1/8/8/8 w - - 0 1)

Hartong, Jan

Rostra Gymnasiorum, 1917

1R1K1nN1/1N1bpp1n/Ppk1pbp1/Rp2Q1p1/1r4P1/8/8/8

#2

8 + 13

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Rb1
      • 2.Qe4#
    • 1...Rb2
      • 2.Qe4#
    • 1...Rb3
      • 2.Qe4#
    • 1...Ra4
      • 2.Qxb5#
    • 1...Rc4
      • 2.Qxb5#
    • 1...Rd4
      • 2.Qxb5#
    • 1...Re4
      • 2.Qxe4#
      • 2.Qxb5#
    • 1...Rf4
      • 2.Qxb5#
    • 1...Rxg4
      • 2.Qxb5#
    • 1...Bxe5
      • 2.Sxe7#
    • 1...Bg7
      • 2.Sxe7#
    • 1...Bh8
      • 2.Sxe7#
    • 1...Bc8
      • 2.Rxc8#
    • 1...Be8
      • 2.Rc8#
    • 1...bxa5
      • 2.Sxa5#
      • 2.Qc5#
  • Tries
    • 1.Sxf6?
      • threat
        • 2.Qc7#
      • 1...exf6
        • 2.Qd6#
      • 1...Sxf6!
  • Keys
    • 1.Ra8!
      • 1...Rxg4
        • 2.Qxb5#
      • 1...Bxe5
        • 2.Sxe7#
      • 1...bxa5
        • 2.Qc5#
      • 1...Ra4
        • 2.Qxb5#
      • 1...Rb1
        • 2.Qe4#
      • 1...Rb2
        • 2.Qe4#
      • 1...Rb3
        • 2.Qe4#
      • 1...Rc4
        • 2.Qxb5#
      • 1...Rd4
        • 2.Qxb5#
      • 1...Re4
        • 2.Qxe4#
        • 2.Qxb5#
      • 1...Rf4
        • 2.Qxb5#
      • 1...Bg7
        • 2.Sxe7#
      • 1...Bh8
        • 2.Sxe7#
      • 1...Bc8
        • 2.Rxc8#
      • 1...Be8
        • 2.Rc8#

FEATURES

  • Static
    • TYPE = WAITER
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • R(a);N_GUARD::QAB(C)
    • R(a);N_GUARD::QAB1(C),XP(b)
    • R(a);N_GUARD,XP(A)::QAB1(C),XP(b)
    • B(g);N_GUARD,XQ(C)::S(H),XP(j)
    • B(g);N_GUARD::S(H),XP(j)
    • B(i);N_GUARD::R(F),XB(i)
    • B(i);N_GUARD::R(F)
  • Tries
    • Try
      • S(H);XB(g)
      • Threat
        • QAR1(C)
      • Vars
        • P(j);N_GUARD,XS(H)::QAR1(C)
      • Refutation
        • S(l);XS(H)
  • Actual
    • R(F);
    • Vars
      • R(a);N_GUARD,XP(A)::QAB1(C),XP(b)
      • B(g);N_GUARD,XQ(C)::S(H),XP(j)
      • P(d);N_GUARD,XR(B)::QAR1(C)
      • R(a);N_GUARD::QAB1(C),XP(b)
      • R(a);N_GUARD::QAB(C)
      • B(g);N_GUARD::S(H),XP(j)
      • B(i);N_GUARD::R(F),XB(i)
      • B(i);N_GUARD::R(F)
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