MESON Chess Problem Database

Problem Display
PID: 9421 (1B4nK/6Q1/b6p/8/7P/1nP1kP1r/1N1R4/3Bb3 w - - 0 1)

van Dijk, Johannes

2nd HM., Tijdschrift vd NSB, 1902

1B4nK/6Q1/b6p/8/7P/1nP1kP1r/1N1R4/3Bb3

#2

9 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Kxd2
      • 2.Bf4#
    • 1...Bxd2
      • 2.Qg1#
    • 1...Bc4
      • 2.Sxc4#
    • 1...Bb7
      • 2.Sc4#
    • 1...Bc8
      • 2.Sc4#
    • 1...Sa1
      • 2.Qd4#
    • 1...Sc1
      • 2.Qd4#
    • 1...Sxd2
      • 2.Qd4#
      • 2.Qa7#
    • 1...Sd4
      • 2.Qxd4#
    • 1...Sa5
      • 2.Qd4#
    • 1...Sc5
      • 2.Qd4#
    • 1...Sf6
      • 2.Qxh6#
    • 1...Se7
      • 2.Qxh6#
    • 1...h5
      • 2.Qg5#
  • Tries
    • 1.Re2+?
      • 1...Kxf3
        • 2.Qg2#
      • 1...Bxe2!
    • 1.Qg1+?
      • 1...Bf2
        • 2.Qxf2#
      • 1...Kxd2!
  • Keys
    • 1.c4!
      • threat
        • 2.Qc3#
      • 1...Kxd2
        • 2.Bf4#
      • 1...Rxf3
        • 2.Re2#
      • 1...Bxd2
        • 2.Qg1#
      • 1...Bxc4
        • 2.Sxc4#
      • 1...Sxd2
        • 2.Qa7#
      • 1...Sc1
        • 2.Qd4#
      • 1...Sd4
        • 2.Qxd4#
      • 1...Sc5
        • 2.Qd4#
      • 1...Sf6
        • 2.Qxh6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 6
  • Sets
    • K(c);S_FLIGHT,XR(C)::B(H)
    • B(a);N_GUARD,SBLOCK,XR(C)::QAB(G)
    • B(e);N_GUARD::S(B),XB(e)
    • B(e);N_GUARD::S(B)
    • S(b);N_GUARD::QAB1(G)
    • S(b);N_GUARD::QAB1(G),XS(b)
    • S(g);N_GUARD::QAB(G),XP(f)
    • P(f);N_GUARD::QAB(G)
  • Tries
    • Try
      • R(C);CHECK
      • Vars
        • K(c);P-FLIGHT,XP(E)::QAB1(G)
      • Refutation
        • B(e);XR(C)
    • Try
      • Q(G);CHECK
      • Vars
        • B(a);N_GUARD,P_SPINB(a)::QAB1(G),XB(a)
      • Refutation
        • K(c);S_FLIGHT,XR(C)
  • Actual
    • P(D);
    • Threat
      • QAR2(G)
    • Vars
      • K(c);S_FLIGHT,XR(C)::B(H)
      • R(d);SBLOCK,XP(E)::R1(C)
      • B(a);N_GUARD,SBLOCK,XR(C)::QAB(G)
      • B(e);XP(D)::S(B),XB(e)
      • S(b);N_GUARD,SBLOCK,XR(C)::QAB(G)
      • S(b);N_GUARD::QAB1(G)
      • S(b);N_GUARD::QAB1(G),XS(b)
      • S(g);N_GUARD::QAB(G),XP(f)
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