MESON Chess Problem Database

Problem Display
PID: 41232 (R3B3/2p4K/2n3N1/2k2N2/8/2nP4/3B4/RQ6 w - - 0 1)

Szoghy, Jozsef

Uj Magyarsag, 1935

R3B3/2p4K/2n3N1/2k2N2/8/2nP4/3B4/RQ6

#2

9 + 4

SOLUTION

  • SOUND
  • Tries
    • 1.Be3+?
      • 1...Kd5
        • 2.Bf7#
        • 2.Qb3#
      • 1...Sd4!
    • 1.R1a5+?
      • 1...Sb5
        • 2.Rxb5#
        • 2.Qxb5#
      • 1...Sxa5!
    • 1.R8a5+?
      • 1...Sb5
        • 2.Rxb5#
        • 2.Qxb5#
      • 1...Sxa5!
    • 1.Qb7?
      • 1...Kd5
        • 2.Qxc6#
      • 1...Sb1
        • 2.Qxc6#
      • 1...Sd1
        • 2.Qxc6#
      • 1...Sa2
        • 2.Qxc6#
      • 1...Se2
        • 2.Qxc6#
      • 1...Sa4
        • 2.Qxc6#
      • 1...Se4
        • 2.Qxc6#
      • 1...Sb5
        • 2.Qxc6#
      • 1...Sd5
        • 2.Qxc6#
      • 1...Sb4
        • 2.Be3#
      • 1...Sa5
        • 2.Be3#
      • 1...Se5
        • 2.Be3#
      • 1...Sa7
        • 2.Be3#
      • 1...Se7
        • 2.Be3#
      • 1...Sb8
        • 2.Be3#
      • 1...Sd8
        • 2.Be3#
      • 1...Sd4!
  • Keys
    • 1.Qg1+!
      • 1...Kb4
        • 2.Rb1#
      • 1...Kb5
        • 2.Rb8#
      • 1...Kd5
        • 2.Bf7#
      • 1...Sd4
        • 2.Qxd4#

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(C);CHECK
      • Refutation
        • S(c);P_SPINS(c)
    • Try
      • R(A);CHECK
      • Refutation
        • S(c);XR(A)
    • Try
      • R(H);CHECK
      • Refutation
        • S(c);XR(H)
    • Try
      • Q(B);
      • Vars
        • K(b);P-FLIGHT,P_SPINS(c)::QAB1(B),XS(c)
        • S(a);::QAR1(B),XS(c)
        • S(c);N_GUARD::B(C)
      • Refutation
        • S(c);
  • Actual
    • Q(B);CHECK
    • Vars
      • K(b);P_SPINS(a),S_FLIGHT::R(A)
      • K(b);P-FLIGHT,P_SPINS(c)::R(H)
      • K(b);P-FLIGHT::B(I)
      • S(c);N_GUARD,P_SPINS(c)::QAB1(B),XS(c)
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