MESON Chess Problem Database

Problem Display
PID: 99419 (2K5/p2B3p/1N2N1b1/1pp1BR1r/4k2P/Q2p4/2r1pP2/3n4 w - - 0 1)

Szentmartoni, Laszlo

Magyar Sakkelet, 1958

2K5/p2B3p/1N2N1b1/1pp1BR1r/4k2P/Q2p4/2r1pP2/3n4

#2

9 + 11

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Ra2
      • 2.Sxc5#
    • 1...Rb2
      • 2.Sxc5#
    • 1...Rd2
      • 2.Sxc5#
    • 1...Rxh4
      • 2.Sg5#
    • 1...Rg5
      • 2.Sxg5#
    • 1...Rh6
      • 2.Sg5#
    • 1...Sc3
      • 2.Sxc5#
    • 1...d2
      • 2.Qf3#
    • 1...c4
      • 2.Sc5#
  • Tries
    • 1.Qb4+?
      • 1...Kxf5
        • 2.Qf4#
      • 1...Rc4
        • 2.Sxc5#
      • 1...c4
        • 2.Sc5#
      • 1...cxb4+!
  • Keys
    • 1.Qxc5!
      • threat
        • 2.Rf4#
      • 1...Rxc5+
        • 2.Sxc5#
      • 1...Kxf5
        • 2.Sg5#
      • 1...Rxh4
        • 2.Sg5#
      • 1...Rxf5
        • 2.Bc6#
      • 1...Bxf5
        • 2.Bc6#
      • 1...d2
        • 2.Qxc2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 4
    • REMOVED MATES = 7
  • Sets
    • R(b);N_GUARD::S(G),XP(g)
    • R(h);N_GUARD,XP(C)::S(G)
    • R(h);N_GUARD::S(G),XR(h)
    • R(h);N_GUARD::S(G)
    • S(a);S_CUTR(b)::S(G),XP(g)
    • P(d);OGATE::QAB1(B)
    • P(g);S_CUTR(b)::S(G)
  • Tries
    • Try
      • Q(B);CHECK
      • Vars
        • K(e);OGATE,S_FLIGHT,XR(E)::QAR1(B)
        • R(b);P_SPINR(b)::S(G),XP(g)
        • P(g);P_SPINP(g)::S(G)
      • Refutation
        • P(g);CHECK,XQ(B)
  • Actual
    • Q(B);P_SPINQ(B),XP(g)
    • Threat
      • R1(E)
    • Vars
      • R(b);CHECK,XQ(B)::S(G),XR(b)
      • K(e);S_FLIGHT,XR(E)::B(H)+S(G)
      • R(h);N_GUARD,XP(C)::S(G)
      • R(h);SBLOCK,XR(E)::B(H)
      • B(i);SBLOCK,XR(E)::B(H)
      • P(d);::QAB(B),XR(b)
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