MESON Chess Problem Database

Problem Display
PID: 194543 (8/8/7B/8/2Q1n3/2rPbN2/3n3r/K1kB2R1 w - - 0 1)

Uris, Miguel

BCPS Website, 2019

8/8/7B/8/2Q1n3/2rPbN2/3n3r/K1kB2R1

#2

7 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Rc2
      • 2.Qxc2#
    • 1...Sb1
      • 2.Bb3#
      • 2.Ba4#
    • 1...Sb3+
      • 2.Bxb3#
    • 1...Sxc4
      • 2.Bb3#
      • 2.Ba4#
    • 1...Sf2
      • 2.Qxc3#
    • 1...Sg3
      • 2.Qxc3#
    • 1...Sc5
      • 2.Qxc3#
    • 1...Sg5
      • 2.Qxc3#
    • 1...Sd6
      • 2.Qxc3#
    • 1...Sf6
      • 2.Qxc3#
  • Tries
    • 1.Bb3+?
      • 1...Sf1
        • 2.Rxf1#
      • 1...Bxg1!
    • 1.Ba4+?
      • 1...Sf1
        • 2.Rxf1#
      • 1...Bxg1!
  • Keys
    • 1.Qa2!
      • threat
        • 2.Qb2#
      • 1...Sb3+
        • 2.Bxb3#
      • 1...Bxg1
        • 2.Qb1#
      • 1...Sxf3
        • 2.Bxf3#
      • 1...Sf1
        • 2.Qb1#
      • 1...Rc2
        • 2.Qxc2#
      • 1...Ra3
        • 2.Qxa3#
      • 1...Rb3
        • 2.Qc2#
      • 1...Sb1
        • 2.Bc2#
        • 2.Be2#
        • 2.Bb3#
        • 2.Ba4#
        • 2.Qxb1#
      • 1...Sc4
        • 2.Bc2#
        • 2.Be2#
        • 2.Bb3#
        • 2.Ba4#
        • 2.Qb1#

This is a version of 194542

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 6
  • Sets
    • R(d);OGATE::QAR1(F),XR(d)
    • S(b);CHECK,N_GUARD,P_SPINB(e)::R(C)+B(B),XS(b)
    • S(f);N_GUARD::QAR2(F),XR(d)
  • Tries
    • Try
      • B(B);CHECK
      • Vars
        • S(b);N_GUARD,P_SPINB(e),P_SPINS(b)::R(C),XS(b)
      • Refutation
        • B(e);P_SPINS(b),XR(C)
    • Try
      • B(B);CHECK
      • Vars
        • S(b);N_GUARD,P_SPINB(e),P_SPINS(b)::R(C),XS(b)
      • Refutation
        • B(e);P_SPINS(b),XR(C)
  • Actual
    • Q(F);N_PINR(d)
    • Threat
      • QAB1(F)
    • Vars
      • S(b);CHECK,N_GUARD,P_SPINB(e)::R(C)+B(B),XS(b)
      • B(e);P_SPINS(b),XR(C)::QAR1(F)
      • S(b);OGATE,P_SPINB(e),XS(E)::R(C)+B(B),XS(b)
      • S(b);N_GUARD,P_SPINB(e)::QAR1(F)
      • R(d);N_GUARD::QAR1(F),XR(d)
      • R(d);N_GUARD,P_PINQ(F)::QAB(F),XR(d)
      • R(d);N_GUARD::QAR1(F)
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