MESON Chess Problem Database

Problem Display
PID: 253704 (K7/p3R3/Q7/1R1p4/3k2p1/6r1/b7/2n1N3 w - - 0 1)

Gajevskis, A

Sachmatija, 2021

K7/p3R3/Q7/1R1p4/3k2p1/6r1/b7/2n1N3

#2

5 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Bc4
      • 2.Qf6#
  • Tries
    • 1.Qa4+?
      • 1...Kc3
        • 2.Qb4#
      • 1...Bc4!
    • 1.Qc6?
      • threat
        • 2.Qc5#
      • 1...Bc4
        • 2.Qf6#
      • 1...Sb3
        • 2.Rb4#
        • 2.Rxd5#
      • 1...Sd3
        • 2.Sc2#
      • 1...Rc3!
    • 1.Qd6?
      • threat
        • 2.Qc5#
      • 1...Kc3
        • 2.Qb4#
      • 1...Kc4
        • 2.Qb4#
        • 2.Qc5#
      • 1...Rc3
        • 2.Qf4#
      • 1...Bc4
        • 2.Qe5#
        • 2.Qf6#
      • 1...Sb3
        • 2.Qb4#
      • 1...Sd3!
    • 1.Qxa7+?
      • 1...Kc4
        • 2.Qc5#
      • 1...Kc3!
  • Keys
    • 1.Qc8!
      • threat
        • 2.Qc5#
      • 1...Bc4
        • 2.Qh8#
      • 1...Rc3
        • 2.Qxg4#
      • 1...Sb3
        • 2.Rb4#
      • 1...Sd3
        • 2.Sc2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • B(b);SBLOCK::QAB(C)
  • Tries
    • Try
      • Q(C);CHECK
      • Vars
        • K(d);S_CUTB(b),S_FLIGHT::QAB1(C)
      • Refutation
        • B(b);P_SPINB(b)
    • Try
      • Q(C);
      • Threat
        • QAB1(C)
      • Vars
        • B(b);SBLOCK::QAB(C)
        • S(a);SBLOCK::S(A)
      • Refutation
        • R(c);
    • Try
      • Q(C);P_PINP(f)
      • Threat
        • QAB1(C)
      • Vars
        • K(d);N_SPINP(f),S_CUTB(b),S_FLIGHT::QAB1(C)
        • R(c);SBLOCK::QAR2(C)
        • S(a);S_CUTB(b)::QAR2(C)
      • Refutation
        • S(a);
    • Try
      • Q(C);CHECK,XP(g)
      • Vars
        • K(d);P-FLIGHT::QAR1(C)
      • Refutation
        • K(d);S_FLIGHT
  • Actual
    • Q(C);
    • Threat
      • QAB1(C)
    • Vars
      • B(b);SBLOCK::QAB(C)
      • R(c);N_GUARD,SBLOCK::QAR(C),XP(e)
      • S(a);S_CUTB(b)::R(B)
      • S(a);SBLOCK::S(A)
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