MESON Chess Problem Database

Problem Display
PID: 195745 (2b4K/7p/2n1pQ2/1B6/1R1bkBp1/4N1R1/rq6/2nN4 w - - 0 1)

Franken, Maurits

Haagsche Post, 1922

2b4K/7p/2n1pQ2/1B6/1R1bkBp1/4N1R1/rq6/2nN4

#2

8 + 10

15601 Albrecht-Leiss-Degener Collection 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Qc3
      • 2.Sxc3#
    • 1...Qb1
      • 2.Sc3#
    • 1...Qe2
      • 2.Sc3#
    • 1...Qf2
      • 2.Sc3#
    • 1...Qg2
      • 2.Sc3#
    • 1...Qh2
      • 2.Sc3#
    • 1...Se2
      • 2.Sf2#
    • 1...Sd3
      • 2.Bxc6#
    • 1...Sa5
      • 2.Qe5#
    • 1...Se5
      • 2.Qxe5#
    • 1...Sa7
      • 2.Qe5#
    • 1...Se7
      • 2.Qe5#
    • 1...Sb8
      • 2.Qe5#
    • 1...Sd8
      • 2.Qe5#
  • Tries
    • 1.Be5?
      • threat
        • 2.Rxg4#
        • 2.Qf4#
      • 1...Qe2
        • 2.Sc3#
        • 2.Qf4#
      • 1...Qf2
        • 2.Sc3#
      • 1...Qg2
        • 2.Sc3#
        • 2.Qf4#
      • 1...Qh2
        • 2.Sc3#
        • 2.Qf4#
      • 1...Se2
        • 2.Sf2#
      • 1...Sd3
        • 2.Bxc6#
      • 1...h5
        • 2.Qf4#
      • 1...Sxe5!
    • 1.Bg5?
      • threat
        • 2.Rxg4#
      • 1...Qe2
        • 2.Sc3#
      • 1...Qf2
        • 2.Sc3#
      • 1...Qg2
        • 2.Sc3#
      • 1...Qh2
        • 2.Sc3#
      • 1...Se2
        • 2.Sf2#
      • 1...Sd3
        • 2.Bxc6#
      • 1...Se5
        • 2.Qf4#
      • 1...e5
        • 2.Qxc6#
      • 1...h5!
    • 1.Rxd4+?
      • 1...Sxd4
        • 2.Qe5#
      • 1...Qxd4!
  • Keys
    • 1.Bh6!
      • threat
        • 2.Rxg4#
      • 1...Qe2
        • 2.Sc3#
      • 1...Qf2
        • 2.Sc3#
      • 1...Qg2
        • 2.Sc3#
      • 1...Qh2
        • 2.Sc3#
      • 1...Se2
        • 2.Sf2#
      • 1...Sd3
        • 2.Bxc6#
      • 1...Se5
        • 2.Qf4#
      • 1...e5
        • 2.Qxc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 7
  • Sets
    • Q(c);N_GUARD::S(A),XQ(c)
    • Q(c);N_GUARD::S(A)
    • S(a);S_CUTQ(c)::S(A)
    • S(a);SBLOCK::B(F),XS(g)
    • S(g);N_GUARD::QAR1(G)
    • S(g);N_GUARD,N_PINQ(G)::QAR1(G),XS(g)
  • Tries
    • Try
      • B(E);N_SPINQ(G)
      • Threat
        • DUALS(2)
      • Vars
        • Q(c);N_GUARD::S(A)
        • S(a);S_CUTQ(c)::S(A)
        • S(a);SBLOCK::B(F),XS(g)
        • P(i);::QAR1(G)
      • Refutation
        • S(g);XB(E)
    • Try
      • B(E);
      • Threat
        • R(C),XP(f)
      • Vars
        • Q(c);N_GUARD::S(A)
        • S(a);S_CUTQ(c)::S(A)
        • S(a);SBLOCK::B(F),XS(g)
        • S(g);N_PINQ(G)::QAR1(G)
        • P(h);N_PINQ(G),SBLOCK::QAB(G),XS(g)
      • Refutation
        • P(i);
    • Try
      • R(D);CHECK,N_SPINQ(G),XB(d)
      • Vars
        • S(g);XR(D)::QAR1(G)
      • Refutation
        • Q(c);P_PINQ(G),XR(D)
  • Actual
    • B(E);
    • Threat
      • R(C),XP(f)
    • Vars
      • Q(c);N_GUARD::S(A)
      • S(a);S_CUTQ(c)::S(A)
      • S(a);SBLOCK::B(F),XS(g)
      • S(g);N_PINQ(G)::QAR1(G)
      • P(h);N_PINQ(G),SBLOCK::QAB(G),XS(g)
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