MESON Chess Problem Database

Problem Display
PID: 15941 (K1N5/7R/4P3/bPkp2r1/5N2/4P3/8/1R3B1Q w - - 0 1)

Zidek, Alexander

1st Prize, Schach-Report/Deutsche Schachblatter, 1989

K1N5/7R/4P3/bPkp2r1/5N2/4P3/8/1R3B1Q

#2

10 + 4

14730 Problempalette II (Chlubna/Wenda) 1991

SOLUTION

  • SOUND
  • Sets
    • 1...Rg1
      • 2.Qxd5#
    • 1...Rg3
      • 2.Qxd5#
    • 1...Rg4
      • 2.Qxd5#
    • 1...Rg6
      • 2.Qxd5#
    • 1...Rg7
      • 2.Qxd5#
    • 1...Rg8
      • 2.Qxd5#
    • 1...Be1
      • 2.Rc7#
    • 1...Bd2
      • 2.Rc7#
    • 1...Bc3
      • 2.Rc7#
    • 1...Bb4
      • 2.Rc7#
    • 1...Bc7
      • 2.Rxc7#
    • 1...d4
      • 2.Qc6#
  • Tries
    • 1.Rb4?
      • threat
        • 2.Sd3#
      • 1...Bxb4
        • 2.Rc7#
      • 1...Kxb4!
    • 1.Rh4?
      • threat
        • 2.Sd3#
      • 1...Rg4
        • 2.Qxd5#
      • 1...d4
        • 2.Qc6#
      • 1...Bb4!
    • 1.Qe4?
      • threat
        • 2.Sd3#
        • 2.Qd4#
      • 1...Bc3
        • 2.Sd3#
        • 2.Rc7#
      • 1...Bb4
        • 2.Rc7#
        • 2.Qxb4#
        • 2.Qd4#
      • 1...d4
        • 2.Qc6#
        • 2.Qxd4#
        • 2.exd4#
      • 1...dxe4!
    • 1.b6?
      • threat
        • 2.Rc7#
      • 1...Kc6
        • 2.Rc7#
      • 1...Rg7
        • 2.Qxd5#
      • 1...Bxb6!
    • 1.e7?
      • threat
        • 2.Se6#
      • 1...Rg6
        • 2.Qxd5#
      • 1...Re5!
  • Keys
    • 1.Qh4!
      • threat
        • 2.Sd3#
      • 1...Rg4
        • 2.Qe7#
      • 1...Bb4
        • 2.Rc7#
      • 1...d4
        • 2.Qxg5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 0
    • REMOVED MATES = 9
  • Sets
    • R(d);N_GUARD::QAR1(C),XP(c)
    • R(d);N_GUARD,P_PINS(J)::QAR1(C),XP(c)
    • B(a);N_GUARD::R(H)
    • B(a);N_GUARD::R(H),XB(a)
    • P(c);OGATE::QAR1(C)
  • Tries
    • Try
      • R(A);
      • Threat
        • S(E)
      • Vars
        • B(a);N_GUARD,SBLOCK,XR(A)::R(H)
      • Refutation
        • K(b);S_FLIGHT,XR(A)
    • Try
      • R(H);
      • Threat
        • S(E)
      • Vars
        • R(d);N_GUARD::QAR1(C),XP(c)
        • P(c);OGATE::QAR1(C)
      • Refutation
        • B(a);
    • Try
      • Q(C);
      • Threat
        • DUALS(2)
      • Refutation
        • P(c);XQ(C)
    • Try
      • P(F);
      • Threat
        • R(H)
      • Vars
        • K(b);P-FLIGHT,P_SPINP(c)::R1(H)
        • R(d);N_GUARD::QAR1(C),XP(c)
      • Refutation
        • B(a);XP(F)
    • Try
      • P(G);
      • Threat
        • S(E)
      • Vars
        • R(d);N_GUARD::QAR1(C),XP(c)
      • Refutation
        • R(d);
  • Actual
    • Q(C);
    • Threat
      • S(E)
    • Vars
      • R(d);OGATE::QAB(C)
      • B(a);N_GUARD::R(H)
      • P(c);OGATEB::QAR(C),XR(d)
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