MESON Chess Problem Database

Problem Display
PID: 200607 (8/8/8/6N1/2Q5/1r2k3/2b2RKb/2n5 w - - 0 1)

Karin, Aleksey

Zadachi i Etyudi, 2017

8/8/8/6N1/2Q5/1r2k3/2b2RKb/2n5

#2

4 + 5

SOLUTION

  • SOUND
  • Sets
    • 1...Rd3
      • 2.Qe4#
    • 1...Bd1
      • 2.Qe4#
    • 1...Bd3
      • 2.Qc5#
    • 1...Be4+
      • 2.Qxe4#
    • 1...Sa2
      • 2.Re2#
    • 1...Se2
      • 2.Rxe2#
    • 1...Sd3
      • 2.Qe4#
  • Keys
    • 1.Qd5!
      • threat
        • 2.Qd2#
      • 1...Be4+
        • 2.Qxe4#
      • 1...Rd3
        • 2.Qe4#
      • 1...Bd3
        • 2.Qc5#
      • 1...Se2
        • 2.Rf3#
      • 1...Sd3
        • 2.Qe4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 0
    • REMOVED MATES = 2
  • Sets
    • R(d);S_CUTB(b)::QAR1(C)
    • B(b);N_GUARD::QAR1(C)
    • B(b);SBLOCK::QAB(C)
    • B(b);CHECK,N_GUARD::QAR1(C),XB(b)
    • S(a);N_GUARD::R1(A)
    • S(a);N_GUARD::R1(A),XS(a)
    • S(a);S_CUTB(b)::QAR1(C)
  • Actual
    • Q(C);
    • Threat
      • QAB1(C)
    • Vars
      • B(b);CHECK,N_GUARD::QAR1(C),XB(b)
      • R(d);S_CUTB(b)::QAR1(C)
      • B(b);SBLOCK::QAB(C)
      • S(a);SBLOCK::R1(A)
      • S(a);S_CUTB(b)::QAR1(C)
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