MESON Chess Problem Database

Problem Display
PID: 88269 (5n2/5B2/1b4p1/3p1kN1/r5pK/rn4P1/Q3R3/Bb1N4 w - - 0 1)

Boumeester, Hendrikus Bernardus Franciscus

The Problemist, 1991

5n2/5B2/1b4p1/3p1kN1/r5pK/rn4P1/Q3R3/Bb1N4

#2

8 + 10

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Ra5
      • 2.Qxb1#
    • 1...Ra6
      • 2.Qxb1#
    • 1...Ra7
      • 2.Qxb1#
    • 1...Ra8
      • 2.Qxb1#
    • 1...Be3
      • 2.Sxe3#
    • 1...Ba5
      • 2.Se3#
    • 1...Bc7
      • 2.Se3#
    • 1...Bd8
      • 2.Se3#
    • 1...Sc1
      • 2.Qxd5#
    • 1...Sd2
      • 2.Qxd5#
    • 1...Sa5
      • 2.Qxd5#
    • 1...Sc5
      • 2.Qxd5#
    • 1...Se6
      • 2.Bxe6#
    • 1...Sd7
      • 2.Be6#
    • 1...Sh7
      • 2.Be6#
  • Tries
    • 1.Rf2+?
      • 1...Rf4
        • 2.Rxf4#
        • 2.Qxb1#
      • 1...Bxf2!
  • Keys
    • 1.Re6!
      • threat
        • 2.Rf6#
      • 1...Sxa1
        • 2.Qxd5#
      • 1...Sxe6
        • 2.Bxe6#
      • 1...Rd4
        • 2.Se3#
      • 1...Bd4
        • 2.Qxb1#
      • 1...Bd8
        • 2.Se3#
      • 1...Sd4
        • 2.Qxd5#
      • 1...Sd7
        • 2.Bxg6#
      • 1...Sh7
        • 2.Bxg6#
      • 1...d4
        • 2.Qf2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 5
    • REMOVED MATES = 11
  • Sets
    • R(d);N_GUARD::QAB(C),XB(a)
    • B(h);N_GUARD::S(B),XB(h)
    • B(h);N_GUARD::S(B)
    • B(h);N_GUARD,P_PINS(G)::S(B)
    • S(c);OGATE::QAR2(C),XP(f)
    • S(j);N_GUARD::B(H),XS(j)
    • S(j);N_GUARD::B(H)
  • Tries
    • Try
      • R(D);CHECK
      • Refutation
        • B(h);P_PINP(E),XR(D)
  • Actual
    • R(D);
    • Threat
      • R1(D)
    • Vars
      • S(c);OGATE,XB(A)::QAR2(C),XP(f)
      • S(j);OGATE,XR(D)::B(H),XS(j)
      • R(d);S_CUTB(h)::S(B)
      • B(h);S_CUTR(d)::QAB(C),XB(a)
      • B(h);N_GUARD,P_PINS(G)::S(B)
      • S(c);OGATE::QAR2(C),XP(f)
      • S(j);N_GUARD::B(H),XP(i)
      • P(f);S_CUTB(h),S_CUTR(d)::QAR(C)
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