MESON Chess Problem Database

Problem Display
PID: 10005 (Kb6/4Np2/1B1r1R2/R2pkBP1/2Qnb3/6P1/3Np1p1/4r1q1 w - - 0 1)

Visserman, Eeltje

1st HM.=, Nederlandse Bond van Probleemvrienden JT, 1961

Kb6/4Np2/1B1r1R2/R2pkBP1/2Qnb3/6P1/3Np1p1/4r1q1

#2

10 + 11

3749 FIDE Album (1959-1961) 1966
3174 The Two-move Chess Problem Tradition and Development 1966

SOLUTION

  • SOUND
  • Sets
    • 1...Qh2
      • 2.Bxd4#
      • 2.Qxd4#
    • 1...Qf1
      • 2.Bxd4#
      • 2.Qxd4#
    • 1...Qh1
      • 2.Bxd4#
      • 2.Qxd4#
    • 1...Sc2
      • 2.Qxe4#
    • 1...Sb3
      • 2.Qxe4#
    • 1...Sf3
      • 2.Qxe4#
    • 1...Sxf5
      • 2.Qxe4#
    • 1...Sc6
      • 2.Qxe4#
    • 1...Se6
      • 2.Qxe4#
  • Tries
    • 1.Sf3+?
      • 1...Sxf3
        • 2.Qxe4#
      • 1...Bxf3!
    • 1.Sc6+?
      • 1...Sxc6
        • 2.Qxe4#
      • 1...Rxc6!
    • 1.Qxd5+?
      • 1...Rxd5
        • 2.Sc4#
      • 1...Bxd5+!
    • 1.Qc3?
      • threat
        • 2.Sc4#
      • 1...Rc6
        • 2.Sxc6#
      • 1...Bd3
        • 2.Sf3#
      • 1...Bxf5!
    • 1.Qc7?
      • threat
        • 2.Sc4#
      • 1...Bxf5
        • 2.Rxd5#
      • 1...Bd3
        • 2.Rxd5#
      • 1...Sb5
        • 2.Sc6#
      • 1...Rc1!
  • Keys
    • 1.Qxe2!
      • threat
        • 2.Sc4#
      • 1...Rc1
        • 2.Qxe4#
      • 1...Rc6
        • 2.Rxd5#
      • 1...Sb5
        • 2.Sf3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 6
  • Sets
    • S(e);OGATE::QAR1(C),XB(f)
    • S(e);OGATE,XB(E)::QAR1(C),XB(f)
  • Tries
    • Try
      • S(A);CHECK
      • Vars
        • S(e);OGATE,XS(A)::QAR1(C),XB(f)
      • Refutation
        • B(f);XS(A)
    • Try
      • S(I);CHECK
      • Vars
        • S(e);OGATE,XS(I)::QAR1(C),XB(f)
      • Refutation
        • R(i);XS(I)
    • Try
      • Q(C);CHECK,P_SPINQ(C),XP(g)
      • Vars
        • R(i);P_SPINR(i),XQ(C)::S(A)
      • Refutation
        • B(f);CHECK,P_SPINB(f),XQ(C)
    • Try
      • Q(C);P_PINS(e)
      • Threat
        • S(A)
      • Vars
        • R(i);N_GUARD::S(I),XR(i)
        • B(f);N_GUARD::S(A)
      • Refutation
        • B(f);XB(E)
    • Try
      • Q(C);P_PINR(i)
      • Threat
        • S(A)
      • Vars
        • B(f);N_GUARD,XB(E)::R1(D),XP(g)
        • B(f);N_GUARD::R1(D),XP(g)
        • S(e);N_GUARD,N_SPINP(g)::S(I)
      • Refutation
        • R(a);
  • Actual
    • Q(C);P_PINB(f),XP(c)
    • Threat
      • S(A)
    • Vars
      • R(a);N_GUARD::QAR1(C),XB(f)
      • R(i);N_GUARD::R1(D),XP(g)
      • S(e);N_GUARD,N_SPINP(g)::S(A)
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