MESON Chess Problem Database

Problem Display
PID: 5971 (2NRr3/2pbp2p/nn1b4/1P1k1P1K/4pp2/1PQ2pR1/5NB1/6B1 w - - 0 1)

Hansen, Vilhelm

3rd HM., BCPS 001. Ty., 1926

2NRr3/2pbp2p/nn1b4/1P1k1P1K/4pp2/1PQ2pR1/5NB1/6B1

#2

11 + 12

56 The Problemist 1927

SOLUTION

  • SOUND
  • Sets
    • 1...e3
      • 2.Bxf3#
    • 1...c5
      • 2.Sxb6#
    • 1...c6
      • 2.Sxb6#
  • Tries
    • 1.Sg4?
      • threat
        • 2.Qd2#
        • 2.Qd4#
      • 1...Bxf5
        • 2.Qe5#
      • 1...e3
        • 2.Bxf3#
      • 1...Bb4
        • 2.Qd4#
        • 2.Qe5#
        • 2.Qc6#
      • 1...Bc5
        • 2.Qe5#
      • 1...Be5
        • 2.Qxe5#
        • 2.Qc6#
      • 1...Sb4
        • 2.Qd4#
      • 1...Sc5
        • 2.Qd4#
      • 1...Sc4
        • 2.Qd4#
        • 2.Qxc4#
        • 2.bxc4#
      • 1...f2
        • 2.Rd3#
      • 1...c5
        • 2.Sxb6#
        • 2.Qd2#
      • 1...e5
        • 2.Sf6#
        • 2.Qd2#
      • 1...Bxb5!
  • Keys
    • 1.Sh3!
      • threat
        • 2.Qd4#
      • 1...Bxb5
        • 2.Sxf4#
      • 1...Bxf5
        • 2.Sxf4#
      • 1...e3
        • 2.Bxf3#
      • 1...Bc5
        • 2.Sxf4#
      • 1...Be5
        • 2.Qc6#
      • 1...f2
        • 2.Rd3#
      • 1...c5
        • 2.Sxb6#
      • 1...e5
        • 2.Qd2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 1
  • Sets
    • P(b);OGATEB,P_SPINP(a)::B(C),XP(a)
    • P(h);N_GUARD::S(J),XS(f)
  • Tries
    • Try
      • S(B);
      • Threat
        • DUALS(2)
      • Vars
        • B(i);P_SPINB(g),XP(H)::QAR1(E)
        • P(b);OGATEB,P_SPINP(a)::B(C),XP(a)
        • B(g);N_GUARD,P_SPINB(i)::QAR1(E)
        • S(e);::QAR1(E)
        • P(a);OGATE,P_SPINP(b)::R(F)
      • Refutation
        • B(i);P_SPINB(g),XP(G)
  • Actual
    • S(B);
    • Threat
      • QAR1(E)
    • Vars
      • B(i);P_SPINB(g),XP(G)::S(B),XP(c)
      • B(i);P_SPINB(g),XP(H)::S(B),XP(c)
      • P(b);OGATEB,P_SPINP(a)::B(C),XP(a)
      • B(g);N_GUARD,P_SPINB(i)::S(B),XP(c)
      • B(g);P_SPINB(i),SBLOCK::QAB1(E)
      • P(a);OGATE,P_SPINP(b)::R(F)
      • P(h);N_GUARD::S(J),XS(f)
      • P(j);SBLOCK::QAR(E)
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