MESON Chess Problem Database

Problem Display
PID: 169411 (1rR5/n3N1B1/Kpn1BQP1/5P2/pk6/N2r3R/8/2b5 w - - 0 1)

Hawes, Frederick Thomas

Schackvarlden, 1930

1rR5/n3N1B1/Kpn1BQP1/5P2/pk6/N2r3R/8/2b5

#2

10 + 8

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Rd1
      • 2.Qc3#
    • 1...Rd2
      • 2.Qc3#
    • 1...Rc3
      • 2.Qxc3#
    • 1...Rd5
      • 2.Qc3#
    • 1...Rd6
      • 2.Qc3#
    • 1...Rd7
      • 2.Qc3#
    • 1...Rd8
      • 2.Qc3#
    • 1...Sa5
      • 2.Sc2#
    • 1...Se5
      • 2.Sc2#
    • 1...Sxe7
      • 2.Sc2#
    • 1...Sd8
      • 2.Sc2#
  • Tries
    • 1.Qf8?
      • threat
        • 2.Sxc6#
      • 1...Kxa3
        • 2.Sxc6#
      • 1...Kc5
        • 2.Sd5#
      • 1...Sxe7
        • 2.Sc2#
      • 1...Sd4
        • 2.Sg8#
      • 1...Sa5
        • 2.Sc2#
        • 2.Sc6#
      • 1...Se5
        • 2.Sc2#
      • 1...Sd8
        • 2.Sc2#
        • 2.Sc6#
      • 1...Rd6!
  • Keys
    • 1.Bf8!
      • threat
        • 2.Sxc6#
      • 1...Kxa3
        • 2.Sxc6#
      • 1...Kc5
        • 2.Sd5#
      • 1...Sxe7
        • 2.Sc2#
      • 1...Rd6
        • 2.Qc3#
      • 1...Sd4
        • 2.Sg8#
      • 1...Sa5
        • 2.Sc2#
        • 2.Sc6#
      • 1...Se5
        • 2.Sc2#
      • 1...Sd8
        • 2.Sc2#
        • 2.Sc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 8
  • Sets
    • R(b);N_GUARD::QAB1(F)
    • R(b);N_GUARD::QAB1(F),XR(b)
    • S(f);::S(A)
    • S(f);XS(H)::S(A)
  • Tries
    • Try
      • Q(F);
      • Threat
        • QAB(F)+S(H),DCHECK,XS(f)
      • Vars
        • K(d);P_SPINR(b),S_FLIGHT,XS(A)::QAB(F)+S(H),XS(f)
        • K(d);P_SPINS(f),S_FLIGHT::QAB(F)+S(H)
        • S(f);P_SPINS(f),XS(H)::S(A)
        • S(f);N_GUARD,S_CUTR(b)::QAB(F)+S(H)
        • S(f);::S(A)
      • Refutation
        • R(b);
  • Actual
    • B(I);
    • Threat
      • B(I)+S(H),DCHECK,XS(f)
    • Vars
      • K(d);P_SPINR(b),S_FLIGHT,XS(A)::B(I)+S(H),XS(f)
      • K(d);P_SPINS(f),S_FLIGHT::B(I)+S(H)
      • S(f);P_SPINS(f),XS(H)::S(A)
      • R(b);N_GUARD::QAB1(F)
      • S(f);N_GUARD,S_CUTR(b)::B(I)+S(H)
      • S(f);::S(A)
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