MESON Chess Problem Database

Problem Display
PID: 99031 (B2R4/1n2R3/3pb3/3Nk3/QK1np1P1/8/1B6/8 w - - 0 1)

Barczay, Sandor

Magyar Sakkelet, 1952

B2R4/1n2R3/3pb3/3Nk3/QK1np1P1/8/1B6/8

#2

8 + 6

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Rxe6+?
      • 1...Kxd5
        • 2.Rdxd6#
      • 1...Kxe6!
    • 1.Qb3?
      • 1...Sxd8
        • 2.Qg3#
      • 1...Sa5
        • 2.Qg3#
      • 1...Sc5
        • 2.Qg3#
      • 1...e3!
    • 1.Qd7?
      • threat
        • 2.Qxe6#
      • 1...Kxd5
        • 2.Qxd6#
      • 1...Sc5
        • 2.Qxd6#
      • 1...Sxd8!
    • 1.Qa7?
      • threat
        • 2.Qxd4#
      • 1...Kxd5
        • 2.Qc5#
      • 1...Sc5!
  • Keys
    • 1.Qc2!
      • 1...Kxd5
        • 2.Qc5#
      • 1...Sxd8
        • 2.Qh2#
      • 1...Sa5
        • 2.Qh2#
      • 1...Sc5
        • 2.Qh2#
      • 1...e3
        • 2.Qf5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(F);CHECK,XB(e)
      • Vars
        • K(c);N_SPINS(a),P-FLIGHT,P_SPINP(d),P_SPINS(f),XS(E)::R1(H),XP(d)
      • Refutation
        • K(c);N_SPINS(a),P-FLIGHT,XR(F)
    • Try
      • Q(B);
      • Vars
        • S(f);XR(H)::QAB(B)
        • S(f);::QAB(B)
      • Refutation
        • P(b);
    • Try
      • Q(B);
      • Threat
        • QAR1(B),XB(e)
      • Vars
        • K(c);N_SPINB(e),N_SPINS(a),P-FLIGHT,P_SPINP(d),P_SPINS(f),XS(E)::QAR1(B),XP(d)
        • S(f);N_GUARD::QAB1(B),XP(d)
      • Refutation
        • S(f);XR(H)
    • Try
      • Q(B);
      • Threat
        • QAB1(B),XS(a)
      • Vars
        • K(c);N_SPINB(e),N_SPINS(a),OGATEB,P-FLIGHT,P_SPINP(d),P_SPINS(f),XS(E)::QAR1(B)
      • Refutation
        • S(f);
  • Actual
    • Q(B);
    • Vars
      • K(c);N_SPINB(e),N_SPINS(a),OGATEB,P-FLIGHT,P_SPINP(d),P_SPINS(f),XS(E)::QAR1(B)
      • S(f);XR(H)::QAB(B)
      • S(f);::QAB(B)
      • P(b);OGATE::QAR1(B)
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