MESON Chess Problem Database

Problem Display
PID: 164466 (8/8/6K1/8/6pk/7p/3NN3/4R3 w - - 0 1)

Kostylev, Mikhail Romanovich

Sachmatija, 2007

8/8/6K1/8/6pk/7p/3NN3/4R3

#4

4 + 3

SOLUTION

  • SOUND
  • Keys
    • 1.Se4!
      • threat
        • 2.Sf2
          • threat
            • 3.Rh1
              • 3...h2
                • 4.Rxh2#
              • 3...g3
                • 4.Rxh3#
          • 2...h2
            • 3.Ra1
              • 3...h1Q
                • 4.Rxh1#
              • 3...h1S
                • 4.Rxh1#
              • 3...h1B
                • 4.Rxh1#
              • 3...h1R
                • 4.Rxh1#
              • 3...g3
                • 4.Ra4#
            • 3.Rb1
              • 3...h1Q
                • 4.Rxh1#
              • 3...h1S
                • 4.Rxh1#
              • 3...h1B
                • 4.Rxh1#
              • 3...h1R
                • 4.Rxh1#
              • 3...g3
                • 4.Rb4#
            • 3.Rc1
              • 3...h1Q
                • 4.Rxh1#
              • 3...h1S
                • 4.Rxh1#
              • 3...h1B
                • 4.Rxh1#
              • 3...h1R
                • 4.Rxh1#
              • 3...g3
                • 4.Rc4#
            • 3.Rd1
              • 3...h1Q
                • 4.Rxh1#
              • 3...h1S
                • 4.Rxh1#
              • 3...h1B
                • 4.Rxh1#
              • 3...h1R
                • 4.Rxh1#
              • 3...g3
                • 4.Rd4#
          • 2...g3
            • 3.Ra1
              • threat
                • 4.Ra4#
            • 3.Rb1
              • threat
                • 4.Rb4#
            • 3.Rc1
              • threat
                • 4.Rc4#
            • 3.Rd1
              • threat
                • 4.Rd4#
        • 2.S4g3
          • 2...h2
            • 3.Sf5+
              • 3...Kh3
                • 4.Sf4#
        • 2.Sg5
          • 2...g3
            • 3.Ra1
              • threat
                • 4.Ra4#
              • 3...Kg4
                • 4.Ra4#
            • 3.Rb1
              • threat
                • 4.Rb4#
              • 3...Kg4
                • 4.Rb4#
            • 3.Rc1
              • threat
                • 4.Rc4#
              • 3...Kg4
                • 4.Rc4#
            • 3.Rd1
              • threat
                • 4.Rd4#
              • 3...Kg4
                • 4.Rd4#
            • 3.Rf1
              • threat
                • 4.Rf4#
              • 3...Kg4
                • 4.Rf4#
          • 2...h2
            • 3.Ra1
              • 3...g3
                • 4.Ra4#
              • 3...h1Q
                • 4.Rxh1#
              • 3...h1S
                • 4.Rxh1#
              • 3...h1B
                • 4.Rxh1#
              • 3...h1R
                • 4.Rxh1#
            • 3.Rb1
              • 3...g3
                • 4.Rb4#
              • 3...h1Q
                • 4.Rxh1#
              • 3...h1S
                • 4.Rxh1#
              • 3...h1B
                • 4.Rxh1#
              • 3...h1R
                • 4.Rxh1#
            • 3.Rc1
              • 3...g3
                • 4.Rc4#
              • 3...h1Q
                • 4.Rxh1#
              • 3...h1S
                • 4.Rxh1#
              • 3...h1B
                • 4.Rxh1#
              • 3...h1R
                • 4.Rxh1#
            • 3.Rd1
              • 3...g3
                • 4.Rd4#
              • 3...h1Q
                • 4.Rxh1#
              • 3...h1S
                • 4.Rxh1#
              • 3...h1B
                • 4.Rxh1#
              • 3...h1R
                • 4.Rxh1#
            • 3.Rf1
              • 3...g3
                • 4.Rf4#
              • 3...h1Q
                • 4.Rxh1#
              • 3...h1S
                • 4.Rxh1#
              • 3...h1B
                • 4.Rxh1#
              • 3...h1R
                • 4.Rxh1#
        • 2.Ra1
          • 2...h2
            • 3.Sf2
              • 3...h1Q
                • 4.Rxh1#
              • 3...h1S
                • 4.Rxh1#
              • 3...h1B
                • 4.Rxh1#
              • 3...h1R
                • 4.Rxh1#
              • 3...g3
                • 4.Ra4#
            • 3.Sg5
              • 3...g3
                • 4.Ra4#
              • 3...h1Q
                • 4.Rxh1#
              • 3...h1S
                • 4.Rxh1#
              • 3...h1B
                • 4.Rxh1#
              • 3...h1R
                • 4.Rxh1#
          • 2...g3
            • 3.Sf2
              • threat
                • 4.Ra4#
            • 3.Sg5
              • threat
                • 4.Ra4#
              • 3...Kg4
                • 4.Ra4#
            • 3.Ra4
              • threat
                • 4.Sd2#
                • 4.Sf2#
                • 4.S4c3#
                • 4.S4xg3#
                • 4.Sc5#
                • 4.Sg5#
                • 4.Sd6#
                • 4.Sf6#
              • 3...Kg4
                • 4.Sd2#
                • 4.Sg5#
        • 2.Rb1
          • 2...h2
            • 3.Sf2
              • 3...h1Q
                • 4.Rxh1#
              • 3...h1S
                • 4.Rxh1#
              • 3...h1B
                • 4.Rxh1#
              • 3...h1R
                • 4.Rxh1#
              • 3...g3
                • 4.Rb4#
            • 3.Sg5
              • 3...g3
                • 4.Rb4#
              • 3...h1Q
                • 4.Rxh1#
              • 3...h1S
                • 4.Rxh1#
              • 3...h1B
                • 4.Rxh1#
              • 3...h1R
                • 4.Rxh1#
          • 2...g3
            • 3.Sf2
              • threat
                • 4.Rb4#
            • 3.Sg5
              • threat
                • 4.Rb4#
              • 3...Kg4
                • 4.Rb4#
            • 3.Rb4
              • threat
                • 4.Sd2#
                • 4.Sf2#
                • 4.S4c3#
                • 4.S4xg3#
                • 4.Sc5#
                • 4.Sg5#
                • 4.Sd6#
                • 4.Sf6#
              • 3...Kg4
                • 4.Sd2#
                • 4.Sg5#
        • 2.Rc1
          • 2...h2
            • 3.Sf2
              • 3...h1Q
                • 4.Rxh1#
              • 3...h1S
                • 4.Rxh1#
              • 3...h1B
                • 4.Rxh1#
              • 3...h1R
                • 4.Rxh1#
              • 3...g3
                • 4.Rc4#
            • 3.Sg5
              • 3...g3
                • 4.Rc4#
              • 3...h1Q
                • 4.Rxh1#
              • 3...h1S
                • 4.Rxh1#
              • 3...h1B
                • 4.Rxh1#
              • 3...h1R
                • 4.Rxh1#
          • 2...g3
            • 3.Sf2
              • threat
                • 4.Rc4#
            • 3.Sg5
              • threat
                • 4.Rc4#
              • 3...Kg4
                • 4.Rc4#
            • 3.Rc4
              • threat
                • 4.Sd2#
                • 4.Sf2#
                • 4.S4c3#
                • 4.S4xg3#
                • 4.Sc5#
                • 4.Sg5#
                • 4.Sd6#
                • 4.Sf6#
              • 3...Kg4
                • 4.Sd2#
                • 4.Sg5#
        • 2.Rd1
          • 2...h2
            • 3.Sf2
              • 3...h1Q
                • 4.Rxh1#
              • 3...h1S
                • 4.Rxh1#
              • 3...h1B
                • 4.Rxh1#
              • 3...h1R
                • 4.Rxh1#
              • 3...g3
                • 4.Rd4#
            • 3.Sg5
              • 3...g3
                • 4.Rd4#
              • 3...h1Q
                • 4.Rxh1#
              • 3...h1S
                • 4.Rxh1#
              • 3...h1B
                • 4.Rxh1#
              • 3...h1R
                • 4.Rxh1#
          • 2...g3
            • 3.Sf2
              • threat
                • 4.Rd4#
            • 3.Sg5
              • threat
                • 4.Rd4#
              • 3...Kg4
                • 4.Rd4#
            • 3.Rd4
              • threat
                • 4.Sd2#
                • 4.Sf2#
                • 4.S4c3#
                • 4.S4xg3#
                • 4.Sc5#
                • 4.Sg5#
                • 4.Sd6#
                • 4.Sf6#
              • 3...Kg4
                • 4.Sd2#
                • 4.Sg5#
        • 2.Rf1
          • threat
            • 3.Rf2
              • 3...h2
                • 4.Rxh2#
              • 3...g3
                • 4.Rf4#
            • 3.Rf5
              • threat
                • 4.Rh5#
              • 3...g3
                • 4.Rf4#
            • 3.Rf7
              • threat
                • 4.Rh7#
              • 3...g3
                • 4.Rf4#
            • 3.Rf8
              • threat
                • 4.Rh8#
              • 3...g3
                • 4.Rf4#
          • 2...h2
            • 3.Sg5
              • 3...g3
                • 4.Rf4#
              • 3...h1Q
                • 4.Rxh1#
              • 3...h1S
                • 4.Rxh1#
              • 3...h1B
                • 4.Rxh1#
              • 3...h1R
                • 4.Rxh1#
      • 1...h2
        • 2.Sg5
          • threat
            • 3.Ra1
              • 3...g3
                • 4.Ra4#
              • 3...h1Q
                • 4.Rxh1#
              • 3...h1S
                • 4.Rxh1#
              • 3...h1B
                • 4.Rxh1#
              • 3...h1R
                • 4.Rxh1#
            • 3.Rb1
              • 3...g3
                • 4.Rb4#
              • 3...h1Q
                • 4.Rxh1#
              • 3...h1S
                • 4.Rxh1#
              • 3...h1B
                • 4.Rxh1#
              • 3...h1R
                • 4.Rxh1#
            • 3.Rc1
              • 3...g3
                • 4.Rc4#
              • 3...h1Q
                • 4.Rxh1#
              • 3...h1S
                • 4.Rxh1#
              • 3...h1B
                • 4.Rxh1#
              • 3...h1R
                • 4.Rxh1#
            • 3.Rd1
              • 3...g3
                • 4.Rd4#
              • 3...h1Q
                • 4.Rxh1#
              • 3...h1S
                • 4.Rxh1#
              • 3...h1B
                • 4.Rxh1#
              • 3...h1R
                • 4.Rxh1#
            • 3.Rf1
              • 3...g3
                • 4.Rf4#
              • 3...h1Q
                • 4.Rxh1#
              • 3...h1S
                • 4.Rxh1#
              • 3...h1B
                • 4.Rxh1#
              • 3...h1R
                • 4.Rxh1#
          • 2...g3
            • 3.Rf1
              • threat
                • 4.Rf4#
              • 3...Kg4
                • 4.Rf4#
      • 1...g3
        • 2.Rf1
          • threat
            • 3.Rf4#
          • 2...h2
            • 3.Sg5
              • threat
                • 4.Rf4#
              • 3...Kg4
                • 4.Rf4#

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