MESON Chess Problem Database

Problem Display
PID: 86679 (6N1/4R3/2pPpP2/2rk2NK/3p1RP1/Q4pB1/P1r1P3/1B2n3 w - - 0 1)

Grosz, Imre

Magyar Sakkvilag, 1928

6N1/4R3/2pPpP2/2rk2NK/3p1RP1/Q4pB1/P1r1P3/1B2n3

#2

13 + 8

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Kc4
      • 2.Qb3#
    • 1...Ke5
      • 2.Rf5#
    • 1...Kxd6
      • 2.Rxd4#
  • Tries
    • 1.Qxf3+?
      • 1...Kc4
        • 2.Qb3#
      • 1...Ke5
        • 2.Sf7#
        • 2.Rf5#
        • 2.Rxe6#
      • 1...Kxd6
        • 2.Rxd4#
      • 1...Sxf3!
  • Keys
    • 1.Sxe6!
      • threat
        • 2.Rxd4#
      • 1...Kc4+
        • 2.Qxc5#
      • 1...Kxd6+
        • 2.Rf5#
      • 1...Ke5
        • 2.Rxd4#
      • 1...Rd2
        • 2.Qxc5#
      • 1...R2c4
        • 2.Rf5#
      • 1...R5c4
        • 2.Sc7#
      • 1...d3
        • 2.Rd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 3
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • K(f);P_PINS(H),P_SPINP(d),S_FLIGHT::QAB1(D)
    • K(f);P-FLIGHT,P_SPINP(h)::B(E)+R(F),DCHECK
    • K(f);P-FLIGHT,P_PINS(H),P_SPINR(e),XP(J)::B(E)+R(F),DCHECK,XP(d)
  • Tries
    • Try
      • Q(D);CHECK,XP(c)
      • Vars
        • K(f);P_PINS(H),P_SPINP(d),S_FLIGHT::QAB1(D)
        • K(f);P-FLIGHT,P_PINS(H),XP(J)::B(E)+R(F),DCHECK,XP(d)
      • Refutation
        • S(a);XQ(D)
  • Actual
    • S(H);XP(h)
    • Threat
      • R1(F),XP(d)
    • Vars
      • K(f);CHECK,P_SPINP(d),S_FLIGHT::QAR1(D),XR(e)
      • K(f);CHECK,P-FLIGHT,P_SPINR(e),XP(J)::B(E)+R(F)
      • K(f);P-FLIGHT::B(E)+R(F),XP(d)
      • R(b);N_GUARD::QAR1(D),XR(e)
      • R(b);SBLOCK::R(F)
      • R(e);SBLOCK::S(H)
      • P(d);::R1(F)
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