MESON Chess Problem Database

Problem Display
PID: 153520 (r5B1/2R4n/1pN1P3/3k4/4N1RK/2p5/b3P3/2Qn4 w - - 0 1)

Henriksen, Thorleif Cammillo

Good Companions (February), 1916

r5B1/2R4n/1pN1P3/3k4/4N1RK/2p5/b3P3/2Qn4

#2

9 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Ra3
      • 2.e7#
    • 1...Ra4
      • 2.e7#
    • 1...Ra5
      • 2.e7#
    • 1...Ra6
      • 2.e7#
    • 1...Ra7
      • 2.e7#
  • Tries
    • 1.Rg5+?
      • 1...Kc4
        • 2.Sd2#
      • 1...Kxe4
        • 2.Bxh7#
        • 2.Re5#
      • 1...Sxg5!
    • 1.Qg5+?
      • 1...Kc4
        • 2.Sd2#
      • 1...Sxg5!
  • Keys
    • 1.Qa3!
      • 1...Kc4
        • 2.Sxc3#
      • 1...Rxa3
        • 2.e7#
      • 1...Rxg8
        • 2.Qxa2#
      • 1...Ra4
        • 2.e7#
      • 1...Ra5
        • 2.e7#
      • 1...Ra6
        • 2.e7#
      • 1...Ra7
        • 2.e7#
      • 1...Rb8
        • 2.Qxa2#
      • 1...Rc8
        • 2.Qxa2#
      • 1...Rd8
        • 2.Qxa2#
      • 1...Re8
        • 2.Qxa2#
      • 1...Rf8
        • 2.Qxa2#
      • 1...Bb1
        • 2.Qb3#
      • 1...Bb3
        • 2.Qxb3#
      • 1...Bc4
        • 2.Qd6#
      • 1...Sb2
        • 2.Sxc3#
      • 1...Sf2
        • 2.Sxc3#
      • 1...Se3
        • 2.Sxc3#
      • 1...Sg5
        • 2.Sf6#
      • 1...Sf6
        • 2.Sxf6#
      • 1...Sf8
        • 2.Sf6#
      • 1...c2
        • 2.Qd3#
      • 1...b5
        • 2.Qc5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 18
    • REMOVED MATES = 0
  • Sets
    • R(g);N_GUARD::B(I)+P(G)
  • Tries
    • Try
      • R(D);CHECK
      • Vars
        • K(d);P_SPINP(c),S_FLIGHT::S(C)
      • Refutation
        • S(f);XR(D)
    • Try
      • Q(A);CHECK
      • Vars
        • K(d);S_FLIGHT::R(D)+S(C),DCHECK
      • Refutation
        • S(f);XQ(A)
  • Actual
    • Q(A);
    • Vars
      • K(d);S_FLIGHT::R(D)+S(C),XP(c)
      • R(g);N_GUARD,XQ(A)::B(I)+P(G)
      • R(g);N_GUARD,XB(I)::QAB(A),XB(b)
      • R(g);N_GUARD::B(I)+P(G)
      • R(g);N_GUARD::QAB(A),XB(b)
      • B(b);N_GUARD::QAB(A)
      • B(b);N_GUARD::QAB(A),XB(b)
      • B(b);SBLOCK::QAR1(A)
      • S(a);N_GUARD::S(C),XP(c)
      • S(f);N_GUARD::S(C)
      • S(f);N_GUARD::S(C),XS(f)
      • P(c);OGATE::QAR2(A)
      • P(e);N_GUARD::QAR1(A)
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