MESON Chess Problem Database

Problem Display
PID: 235515 (8/8/3B4/2R1p3/2N5/3pKQpb/8/1r2k3 w - - 0 1)

Dikusarov, Andrey Nikolayovich

Schach, 2012

8/8/3B4/2R1p3/2N5/3pKQpb/8/1r2k3

#2

5 + 6

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Bg4
      • 2.Qh1#
    • 1...Bf5
      • 2.Qh1#
    • 1...Be6
      • 2.Qh1#
    • 1...Bd7
      • 2.Qh1#
    • 1...Bc8
      • 2.Qh1#
    • 1...d2
      • 2.Qe2#
    • 1...e4
      • 2.Bxg3#
  • Tries
    • 1.Bxe5?
      • threat
        • 2.Bxg3#
      • 1...g2
        • 2.Bg3#
      • 1...Rb2!
    • 1.Qf2+?
      • 1...Kd1
        • 2.Qd2#
      • 1...gxf2!
    • 1.Qxg3+?
      • 1...Kf1
        • 2.Sd2#
        • 2.Qf2#
      • 1...Kd1!
  • Keys
    • 1.Sb2!
      • threat
        • 2.Sxd3#
      • 1...Rxb2
        • 2.Rc1#
      • 1...Rd1
        • 2.Qxd1#
      • 1...Bf1
        • 2.Qxg3#
      • 1...Bf5
        • 2.Qh1#
      • 1...d2
        • 2.Sd3#
        • 2.Qe2#
      • 1...e4
        • 2.Bxg3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 5
  • Sets
    • B(e);N_GUARD::QAR(B)
    • P(c);N_GUARD::QAR1(B)
    • P(f);OGATE::B(E),XP(d)
  • Tries
    • Try
      • B(E);XP(f)
      • Threat
        • B(E),XP(d)
      • Vars
        • P(d);::B(E)
      • Refutation
        • R(a);
    • Try
      • Q(B);CHECK
      • Vars
        • K(b);P-FLIGHT::QAR1(B)
      • Refutation
        • P(d);XQ(B)
    • Try
      • Q(B);CHECK,XP(d)
      • Refutation
        • K(b);P-FLIGHT
  • Actual
    • S(C);
    • Threat
      • S(C),XP(c)
    • Vars
      • R(a);N_GUARD,XS(C)::R(D)
      • R(a);N_GUARD::QAR1(B),XR(a)
      • B(e);SBLOCK::QAB(B),XP(d)
      • B(e);N_GUARD::QAR(B)
      • P(f);OGATE::B(E),XP(d)
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