MESON Chess Problem Database

Problem Display
PID: 186633 (1B6/R1r4p/3n4/1n3Np1/1Q2BkNp/Rb3p1K/2r2P2/8 w - - 0 1)

Henry, S

Chess, 1959

1B6/R1r4p/3n4/1n3Np1/1Q2BkNp/Rb3p1K/2r2P2/8

#2

9 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Ba2
      • 2.Rxf3#
    • 1...Ba4
      • 2.Rxf3#
    • 1...Bd5
      • 2.Rxf3#
    • 1...Be6
      • 2.Rxf3#
    • 1...Bf7
      • 2.Rxf3#
    • 1...Bg8
      • 2.Rxf3#
  • Tries
    • 1.Bxc2+?
      • 1...Rc4
        • 2.Qd2#
      • 1...Bc4
        • 2.Qd2#
      • 1...Sd4
        • 2.Qd2#
        • 2.Qxd6#
      • 1...Se4
        • 2.Qxe4#
      • 1...Sc4!
  • Keys
    • 1.Sg3!
      • threat
        • 2.Sh5#
      • 1...Sxe4
        • 2.Qxe4#
      • 1...hxg3
        • 2.fxg3#
      • 1...R2c4
        • 2.Qd2#
      • 1...R7c4
        • 2.Rf7#
      • 1...Bc4
        • 2.Rxf3#
      • 1...Bf7
        • 2.Rxf3#
      • 1...Sd4
        • 2.Qxd6#
      • 1...Sc4
        • 2.Qf8#
      • 1...h5
        • 2.Sxh5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 5
  • Sets
    • B(b);OGATE::R1(B),XP(c)
  • Tries
    • Try
      • B(E);CHECK,XR(a)
      • Vars
        • R(i);P_SPINR(i),P_SPINS(h)::QAB(D)
        • B(b);P_SPINB(b)::QAB(D)
        • S(h);N_GUARD,P_SPINR(i),P_SPINS(h)::QAR1(D),XS(h)
      • Refutation
        • S(h);P_SPINR(i),P_SPINS(h)
  • Actual
    • S(G);
    • Threat
      • S(G)
    • Vars
      • S(h);OGATE,P_SPINR(i),P_SPINS(h),XB(E)::QAR1(D),XS(h)
      • P(e);OGATE,XS(G)::P(A),XP(e)
      • R(a);N_GUARD::QAB(D)
      • R(i);OGATE,P_SPINS(h)::R(H)
      • B(b);OGATE::R1(B),XP(c)
      • S(f);N_GUARD::QAB(D),XS(h)
      • S(h);OGATE,P_SPINR(i)::QAR(D)
      • P(j);::S(G),XP(j)
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