MESON Chess Problem Database

Problem Display
PID: 233469 (2B1rRq1/5b2/4N1p1/5kB1/5P2/1KN2P2/1P6/4r3 w - - 0 1)

Rosenthal, Moisej Schlemowitsch

Freie Presse, 1967

2B1rRq1/5b2/4N1p1/5kB1/5P2/1KN2P2/1P6/4r3

#2

9 + 6

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Se2?
      • threat
        • 2.Sg3#
        • 2.Sd4#
      • 1...Rxc8
        • 2.Sd4#
      • 1...Qg7
        • 2.Sg3#
      • 1...Qh8
        • 2.Sg3#
      • 1...Rd1
        • 2.Sg3#
      • 1...Rg1
        • 2.Sd4#
      • 1...Rd8
        • 2.Sg3#
      • 1...Rxe2!
  • Keys
    • 1.Sd5!
      • threat
        • 2.Sd4#
        • 2.Sg7#
      • 1...Re3+
        • 2.Sxe3#
      • 1...R1xe6
        • 2.Se3#
      • 1...R8xe6
        • 2.Se7#
      • 1...Rxc8
        • 2.Sd4#
      • 1...Qg7
        • 2.Sd4#
        • 2.Sxg7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(C);
      • Threat
        • DUALS(2)
      • Vars
        • R(e);XB(H)::S(C)
        • Q(f);::S(C)
        • R(a);::S(C)
        • R(e);::S(C)
      • Refutation
        • R(a);XS(C)
  • Actual
    • S(C);N_SPINS(G)
    • Threat
      • DUALS(2)
    • Vars
      • R(a);CHECK,N_GUARD::S(C),XR(a)
      • R(a);N_GUARD,P_SPINR(a),XS(G)::S(C)
      • R(e);N_GUARD,P_SPINR(e),XS(G)::S(C)
      • R(e);XB(H)::S(G)
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