MESON Chess Problem Database

Problem Display
PID: 60198 (8/2K2Q2/3p2pN/2p1k1r1/1PR1b2B/1nP1p3/BN2Pn1b/5R2 w - - 0 1)

Kofman, Rafael Moiseevich

2nd Highly Comm., Brisbane Courier, 1932

8/2K2Q2/3p2pN/2p1k1r1/1PR1b2B/1nP1p3/BN2Pn1b/5R2

#2

11 + 10

SOLUTION

  • SOUND
  • Tries
    • 1.Rxe4+?
      • 1...Sxe4
        • 2.Sd3#
        • 2.Sc4#
      • 1...Kxe4!
    • 1.Rxc5+?
      • 1...Sxc5
        • 2.Sc4#
      • 1...dxc5
        • 2.Sc4#
      • 1...d5
        • 2.Sc4#
      • 1...Bd5!
    • 1.Qe6+?
      • 1...Kf4
        • 2.Sd3#
        • 2.Rxe4#
        • 2.Qxe4#
      • 1...Kxe6!
    • 1.Qe7+?
      • 1...Kf4
        • 2.Sd3#
        • 2.Rxe4#
        • 2.Qxg5#
        • 2.Qxe4#
      • 1...Kd5!
  • Keys
    • 1.Qd7!
      • threat
        • 2.Qxd6#
      • 1...Kf4
        • 2.Sd3#
      • 1...Kd5
        • 2.Rxc5#
      • 1...Kf6
        • 2.Sg4#
      • 1...d5
        • 2.Qd6#

This is a version of 6599

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(G);CHECK,XB(e)
      • Refutation
        • K(g);P-FLIGHT,XR(G)
    • Try
      • R(G);CHECK,XP(f)
      • Vars
        • S(c);XR(G)::S(C)
        • P(i);XR(G)::S(C)
        • P(i);P_SPINP(i)::S(C)
      • Refutation
        • B(e);P_SPINB(e)
    • Try
      • Q(K);CHECK
      • Refutation
        • K(g);P-FLIGHT,XQ(K)
    • Try
      • Q(K);CHECK
      • Refutation
        • K(g);P-FLIGHT
  • Actual
    • Q(K);
    • Threat
      • QAB1(K),XP(i)
    • Vars
      • K(g);P_SPINB(e),P_SPINS(a),S_FLIGHT::S(C)
      • K(g);P-FLIGHT,P_SPINP(i)::R1(G),XP(f)
      • K(g);P_SPINR(h),P_SPINS(a),S_FLIGHT::S(I)
      • P(i);::QAB1(K)
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Developed and maintained by Brian Stephenson.
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