MESON Chess Problem Database

Problem Display
PID: 144801 (5K2/2Q2p2/2Rp3p/3q1P2/2RP1kPP/6N1/5Pp1/B2B4 w - - 0 1)

Vesz, Tibor

Magyar Sakkvilag, 1931

5K2/2Q2p2/2Rp3p/3q1P2/2RP1kPP/6N1/5Pp1/B2B4

#2

12 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Qxc4
      • 2.Qxd6#
    • 1...Qe4
      • 2.Sh5#
    • 1...Qxd4
      • 2.Qxd6#
    • 1...Qa5
      • 2.d5#
    • 1...Qc5
      • 2.dxc5#
    • 1...Qe5
      • 2.dxe5#
  • Tries
    • 1.Qxd6+?
      • 1...Qe5
        • 2.Qxe5#
        • 2.Qxh6#
        • 2.dxe5#
        • 2.d5#
      • 1...Qxd6+!
  • Keys
    • 1.Rxd6!
      • threat
        • 2.Rxd5#
      • 1...Qa8+
        • 2.Rd8#
      • 1...Qxd6+
        • 2.Qxd6#
      • 1...Qxc4
        • 2.Rc6#
      • 1...Qxd4
        • 2.Rdxd4#
        • 2.Rd5#
        • 2.Ra6#
        • 2.Rb6#
        • 2.Rdc6#
        • 2.Re6#
        • 2.Rf6#
        • 2.Rg6#
        • 2.Rxh6#
        • 2.Rd7#
        • 2.Rd8#
      • 1...Qxf5
        • 2.Rf6#
      • 1...Qf3
        • 2.Rg6#
      • 1...Qe6
        • 2.Rxe6#
      • 1...Qe4
        • 2.Sh5#
      • 1...Qc6
        • 2.Rdxc6#
      • 1...Qb7
        • 2.d5#
      • 1...Qa5
        • 2.d5#
      • 1...Qb5
        • 2.Rd5#
      • 1...Qc5
        • 2.dxc5#
      • 1...Qe5
        • 2.dxe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 8
    • REMOVED MATES = 1
  • Sets
    • Q(c);N_GUARD,XR(E)::QAB(K),XP(d)
    • Q(c);SBLOCK::S(D)
    • Q(c);N_GUARD,P_SPINQ(c),XP(F)::QAB(K),XP(d)
    • Q(c);OGATE::R(E)+P(F)
    • Q(c);OGATE::R(E)+P(F),XQ(c)
    • Q(c);N_SPINP(d),OGATE::R(E)+P(F),XQ(c)
  • Tries
    • Try
      • Q(K);CHECK,XP(d)
      • Refutation
        • Q(c);CHECK,XQ(K)
  • Actual
    • R(J);XP(d)
    • Threat
      • QAB(K)+R(J),XQ(c)
    • Vars
      • Q(c);CHECK,N_GUARD::QAB(K)+R(J)
      • Q(c);CHECK,OGATE,P_SPINQ(c),XR(J)::QAB(K),XQ(c)
      • Q(c);N_GUARD,XR(E)::QAB(K)+R(J)
      • Q(c);N_GUARD,XP(I)::QAB(K)+R(J)
      • Q(c);N_GUARD::QAB(K)+R(J)
      • Q(c);N_GUARD::QAB(K)+R(J),XQ(c)
      • Q(c);SBLOCK::S(D)
      • Q(c);OGATE::R(E)+P(F)
      • Q(c);::QAB(K)+R(J)
      • Q(c);OGATE,P_PINR(J)::R(E)+P(F),XQ(c)
      • Q(c);OGATE::R(E)+P(F),XQ(c)
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