MESON Chess Problem Database

Problem Display
PID: 176253 (5nQ1/3p1q1N/1R1p4/3kb1NR/BK3P2/1ppP3b/8/1r4B1 w - - 0 1)

Hartong, Jan

Wilson, Francis Vaux

Schach-Echo, 1972

5nQ1/3p1q1N/1R1p4/3kb1NR/BK3P2/1ppP3b/8/1r4B1

#2

10 + 10

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Ra1
      • 2.Bxb3#
    • 1...Rc1
      • 2.Bxb3#
    • 1...Rd1
      • 2.Bxb3#
    • 1...Re1
      • 2.Bxb3#
    • 1...Rf1
      • 2.Bxb3#
    • 1...Bf6
      • 2.Sxf6#
    • 1...Se6
      • 2.Qa8#
    • 1...Sg6
      • 2.Qa8#
    • 1...Sxh7
      • 2.Qa8#
    • 1...b2
      • 2.Bb3#
  • Tries
    • 1.Se4?
      • threat
        • 2.Rxd6#
      • 1...Ke6
        • 2.Rxe5#
      • 1...Bf5!
    • 1.Sxf7?
      • threat
        • 2.Rxd6#
      • 1...Ke6
        • 2.Rxe5#
      • 1...Bf5!
  • Keys
    • 1.Se6!
      • threat
        • 2.Sc7#
      • 1...Qxf4+
        • 2.Sxf4#
      • 1...Kxe6
        • 2.Rxe5#
      • 1...Qxe6
        • 2.Sf6#
      • 1...Rxg1
        • 2.Bxb3#
      • 1...Bxe6
        • 2.Qg2#
      • 1...Sxe6
        • 2.Qa8#
      • 1...dxe6
        • 2.Bc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 9
  • Sets
    • R(a);N_GUARD::B(C),XP(b)
    • B(f);N_GUARD::S(I),XB(f)
    • S(j);N_SPINQ(i),OGATE::QAB(J)
    • S(j);OGATE::QAB(J)
    • S(j);OGATE,XS(I)::QAB(J)
    • P(b);S_CUTR(a)::B(C)
  • Tries
    • Try
      • S(F);P_PINB(f)
      • Threat
        • R1(H),XP(g)
      • Vars
        • K(e);N_SPINB(f),P_SPINP(g),S_FLIGHT::R1(G),XB(f)
      • Refutation
        • B(d);N_SPINB(f)
    • Try
      • S(F);P_PINB(f),XQ(i)
      • Threat
        • R1(H),XP(g)
      • Vars
        • K(e);N_SPINB(f),P_SPINP(g),S_FLIGHT::R1(G),XB(f)
      • Refutation
        • B(d);N_SPINB(f)
  • Actual
    • S(F);N_PINQ(i),P_PINB(f)
    • Threat
      • S(F)
    • Vars
      • Q(i);CHECK,XP(E)::QAB(J)+S(F),DCHECK,XQ(i)
      • K(e);N_SPINB(f),P_SPINP(g),P_SPINQ(i),S_FLIGHT,XS(F)::R1(G),XB(f)
      • Q(i);N_GUARD,P_SPINQ(i),XS(F)::S(I)
      • R(a);N_GUARD,XB(A)::B(C),XP(b)
      • B(d);N_GUARD,SBLOCK,XS(F)::QAB(J)
      • S(j);OGATE,SBLOCK,XS(F)::QAB(J)
      • P(h);N_GUARD,SBLOCK,XS(F)::B(C)
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