Problem Display
PID: 54880 (bR6/2rp1Nbq/2pR2r1/p2pQ1p1/P1kPPn2/p3K2p/P1PB1Pp1/8 w - - 0 1)

Soroka, Ivan Ivanovich

2nd Prize, Kaliningradski Komsomolets, 1986

bR6/2rp1Nbq/2pR2r1/p2pQ1p1/P1kPPn2/p3K2p/P1PB1Pp1/8

#4

12 + 15


5159 FIDE Album (1986-1988) (Annexe) 1996
5402 German Solving Championship 2004

SOLUTION


  • SOUND
  • Keys
    • 1.Rb3!
      • threat
        • 2.Rc3+
          • 2...Kb4
            • 3.Rc5+
              • 3...Kxa4
                • 4.Rxa5#
      • 1...Ra7
        • 2.Qf6
          • threat
            • 3.Se5#
          • 2...Bxf6
            • 3.Rxc6+
              • 3...Bxc6
                • 4.Sd6#
              • 3...dxc6
                • 4.Sd6#
      • 1...Se2
        • 2.Rf6
          • threat
            • 3.Sd6#
          • 2...Rxf6
            • 3.Qxd5+
              • 3...cxd5
                • 4.Se5#
          • 2...Bf8
            • 3.Qxd5+
              • 3...cxd5
                • 4.Se5#
      • 1...c5
        • 2.Rc3+
          • 2...Kb4
            • 3.Rxc5+
              • 3...Kxa4
                • 4.Rxa5#

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