MESON Chess Problem Database

Problem Display
PID: 149278 (1K6/8/3Q4/8/3N4/2p5/2R5/3k2b1 w - - 0 1)

Kolpakov, Viktor Sergeevich

Kudesnik, 1995

1K6/8/3Q4/8/3N4/2p5/2R5/3k2b1

#2

4 + 3

15148 Sadier Collection 2013

SOLUTION

  • SOUND
  • Tries
    • 1.Qa6?
      • threat
        • 2.Qf1#
        • 2.Qe2#
        • 2.Qa1#
      • 1...Ke1
        • 2.Qe2#
        • 2.Qa1#
      • 1...Bxd4
        • 2.Qe2#
      • 1...Be3
        • 2.Qf1#
        • 2.Qe2#
      • 1...Bf2
        • 2.Qe2#
        • 2.Qa1#
      • 1...Bh2+!
  • Keys
    • 1.Qf4!
      • threat
        • 2.Rc1#
        • 2.Qc1#
        • 2.Qf1#
      • 1...Ke1
        • 2.Rc1#
        • 2.Qc1#
      • 1...Bxd4
        • 2.Qc1#
      • 1...Be3
        • 2.Qf1#
      • 1...Bf2
        • 2.Rc1#
        • 2.Qc1#
      • 1...Bh2
        • 2.Rc1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(C);
      • Threat
        • DUALS(3)
      • Vars
        • B(b);XS(B)::QAB1(C)
      • Refutation
        • B(b);CHECK
  • Actual
    • Q(C);
    • Threat
      • DUALS(3)
    • Vars
      • B(b);XS(B)::QAR1(C)
      • B(b);::QAR2(C)
      • B(b);P_PINQ(C)::R1(A)
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