MESON Chess Problem Database

Problem Display
PID: 56027 (8/2Kp4/3Q1pp1/2p5/2r1k3/6B1/1nNnB3/4R2r w - - 0 1)

Dyachuk, Vasyl Vasilovich

Comm., StrateGems, 2002

8/2Kp4/3Q1pp1/2p5/2r1k3/6B1/1nNnB3/4R2r

#2

6 + 9

145 StrateGems 2004

SOLUTION

  • SOUND
  • Sets
    • 1...Kf5
      • 2.Qd5#
    • 1...Rh3
      • 2.Bg4#
    • 1...Rh4
      • 2.Bg4#
    • 1...Rh5
      • 2.Bg4#
    • 1...Rh6
      • 2.Bg4#
    • 1...Rh7
      • 2.Bg4#
    • 1...Rh8
      • 2.Bg4#
    • 1...Sd1
      • 2.Qd3#
    • 1...Sd3
      • 2.Qxd3#
    • 1...Sa4
      • 2.Qd3#
    • 1...Sf3
      • 2.Bd3#
    • 1...f5
      • 2.Qe5#
  • Tries
    • 1.Bd1+?
      • 1...Kf5
        • 2.Qd5#
      • 1...Rxe1!
    • 1.Bf3+?
      • 1...Kf5
        • 2.Qd5#
      • 1...Kxf3!
    • 1.Bxc4+?
      • 1...Kf5
        • 2.Qf4#
      • 1...Rxe1
        • 2.Qf4#
        • 2.Qd5#
      • 1...Kf3!
    • 1.Bh5+?
      • 1...Kf5
        • 2.Qd5#
      • 1...Rxe1!
    • 1.Qc6+?
      • 1...Kf5
        • 2.Qd5#
      • 1...d5
        • 2.Qe6#
      • 1...dxc6!
    • 1.Qxd7?
      • threat
        • 2.Qe6#
      • 1...Rh5
        • 2.Bd1#
        • 2.Bg4#
        • 2.Bxh5#
      • 1...Rh7
        • 2.Bd1#
        • 2.Bg4#
        • 2.Bh5#
      • 1...Sd3
        • 2.Qxd3#
      • 1...Sf3
        • 2.Bd3#
      • 1...Rxc2!
  • Keys
    • 1.Qxf6!
      • threat
        • 2.Qe5#
      • 1...Kd5
        • 2.Qe5#
      • 1...Rh5
        • 2.Bxc4#
      • 1...Sd3
        • 2.Bf3#
      • 1...Sf3
        • 2.Qxf3#
      • 1...d6
        • 2.Qe6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 3
    • ADDED MATES = 2
    • REMOVED MATES = 9
  • Sets
    • K(e);S_FLIGHT::QAR2(E)
    • R(a);N_GUARD::R(A)+B(C)
    • S(b);N_GUARD::QAB1(E)
    • S(b);N_GUARD::QAB1(E),XS(b)
    • S(c);SBLOCK::R(A)+B(C),DCHECK
    • P(g);N_GUARD::QAR1(E)
  • Tries
    • Try
      • B(C);CHECK
      • Vars
        • K(e);S_FLIGHT::QAR2(E)
      • Refutation
        • R(a);XR(A)
    • Try
      • B(C);CHECK
      • Vars
        • K(e);S_FLIGHT::QAR2(E)
      • Refutation
        • K(e);S_FLIGHT,XB(C)
    • Try
      • B(C);CHECK,XR(d)
      • Vars
        • K(e);S_FLIGHT::QAR1(E)
      • Refutation
        • K(e);S_FLIGHT
    • Try
      • B(C);CHECK
      • Vars
        • K(e);S_FLIGHT::QAR2(E)
      • Refutation
        • R(a);XR(A)
    • Try
      • Q(E);CHECK
      • Vars
        • K(e);S_FLIGHT::QAR2(E)
        • P(i);N_GUARD,P_SPINP(i)::QAR2(E)
      • Refutation
        • P(i);XQ(E)
    • Try
      • Q(E);XP(i)
      • Threat
        • QAR2(E)
      • Vars
        • S(b);N_GUARD::QAB1(E),XS(b)
        • S(c);SBLOCK::R(A)+B(C),DCHECK
      • Refutation
        • R(d);XS(B)
  • Actual
    • Q(E);XP(g)
    • Threat
      • QAR1(E)
    • Vars
      • K(e);S_FLIGHT::QAR1(E)
      • R(a);N_GUARD::R(A)+B(C),XR(d)
      • S(b);SBLOCK::R(A)+B(C),DCHECK
      • S(c);N_GUARD::QAB1(E),XS(c)
      • P(i);N_GUARD::QAR2(E)
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