MESON Chess Problem Database

Problem Display
PID: 172221 (4K3/8/8/8/5B2/4Q1N1/7k/7r w - - 0 1)

Andreev, Aleksandr Grigorevich

Kuban segodniya, 1996

4K3/8/8/8/5B2/4Q1N1/7k/7r

#2

4 + 2

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Tries
    • 1.Qd2+?
      • 1...Kg1
        • 2.Be3#
      • 1...Kh3!
    • 1.Qe2+?
      • 1...Kg1
        • 2.Be3#
      • 1...Kh3!
  • Keys
    • 1.Qf3!
      • threat
        • 2.Se2#
        • 2.Qxh1#
      • 1...Re1+
        • 2.Se2#
      • 1...Kg1
        • 2.Se2#
      • 1...Kh3
        • 2.Sf5#
      • 1...Ra1
        • 2.Se2#
      • 1...Rb1
        • 2.Se2#
      • 1...Rc1
        • 2.Se2#
      • 1...Rd1
        • 2.Se2#
      • 1...Rf1
        • 2.Se2#
      • 1...Rg1
        • 2.Sf1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 9
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(A);CHECK
      • Vars
        • K(b);S_FLIGHT::B(C)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • K(b);S_FLIGHT::B(C)
      • Refutation
        • K(b);P-FLIGHT
  • Actual
    • Q(A);
    • Threat
      • DUALS(2)
    • Vars
      • R(a);CHECK::B(C)+S(B)
      • K(b);S_FLIGHT::S(B)
      • K(b);P-FLIGHT::QAR(A)+S(B)
      • R(a);::B(C)+S(B)
      • R(a);SBLOCK::B(C)+S(B),DCHECK
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