MESON Chess Problem Database

Problem Display
PID: 244556 (1QNBnN2/1pn1r1p1/2k1p3/1p1R2K1/1P6/1Pr2p2/8/8 w - - 0 1)

Buglos, Janos

Nepszava, 1940

1QNBnN2/1pn1r1p1/2k1p3/1p1R2K1/1P6/1Pr2p2/8/8

#2

8 + 10

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Rxb3
      • 2.Rc5#
    • 1...Rd3
      • 2.Rc5#
    • 1...Re3
      • 2.Rc5#
    • 1...Rc5
      • 2.Rxc5#
    • 1...Sxd5
      • 2.Sa7#
    • 1...Sa6
      • 2.Sxe7#
    • 1...Sa8
      • 2.Sxe7#
    • 1...Sd6
      • 2.Rxd6#
    • 1...Sf6
      • 2.Rd6#
    • 1...b6
      • 2.Sxe7#
  • Keys
    • 1.Rxb5!
      • threat
        • 2.Qxb7#
      • 1...Rc5+
        • 2.Rxc5#
      • 1...Kxb5
        • 2.Qxb7#
      • 1...Sxb5
        • 2.Sxe7#
      • 1...Sd5
        • 2.Sa7#
      • 1...Sa6
        • 2.Sa7#
      • 1...Sa8
        • 2.Sa7#
      • 1...Sd6
        • 2.Sa7#
      • 1...b6
        • 2.Qxb6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 4
    • ADDED MATES = 2
    • REMOVED MATES = 4
  • Sets
    • R(a);N_GUARD,XP(A)::R1(C)
    • R(a);N_GUARD::R1(C)
    • R(a);N_GUARD,P_PINR(C)::R1(C),XR(a)
    • S(g);SBLOCK,XR(C)::S(F)
    • S(g);::S(F),XR(h)
    • S(j);N_GUARD::R1(C),XS(j)
    • S(j);N_GUARD::R1(C)
    • P(f);::S(F),XR(h)
  • Actual
    • R(C);XP(c)
    • Threat
      • QAB1(E),XP(f)
    • Vars
      • R(a);CHECK,N_GUARD::R1(C),XR(a)
      • K(d);P_SPINP(f),S_FLIGHT,XR(C)::QAR2(E),XP(f)
      • S(g);SBLOCK,XR(C)::S(F),XR(h)
      • S(g);::S(F)
      • S(j);SBLOCK::S(F)
      • P(f);OGATE::QAR1(E),XP(f)
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