MESON Chess Problem Database

Problem Display
PID: 19466 (8/2N1Bn2/2nrp3/1Q3p1R/3kp3/2p5/4R1B1/2KN4 w - - 0 1)

Kiss, Janos

1st Prize, Probleemblad, 1955

8/2N1Bn2/2nrp3/1Q3p1R/3kp3/2p5/4R1B1/2KN4

#2

8 + 8

3105 FIDE Album (1945-1955) 1964
133 The Problemist Supplement 2015

SOLUTION

  • SOUND
  • Sets
    • 1...Rd7
      • 2.Sxe6#
    • 1...Rd8
      • 2.Sxe6#
    • 1...c2
      • 2.Rd2#
    • 1...f4
      • 2.Rxe4#
  • Tries
    • 1.Qc4+?
      • 1...Ke5
        • 2.Rxe4#
        • 2.Qxe4#
      • 1...Kxc4!
    • 1.Qb4+?
      • 1...Kd3
        • 2.Re3#
      • 1...Ke5
        • 2.Rxe4#
        • 2.Qxe4#
      • 1...Sxb4!
    • 1.Qc5+?
      • 1...Kd3
        • 2.Re3#
      • 1...Kxc5!
  • Keys
    • 1.Qb3!
      • threat
        • 2.Qxc3#
      • 1...Kd3
        • 2.Rd2#
      • 1...Kc5
        • 2.Sxe6#
      • 1...Ke5
        • 2.Rxe4#
      • 1...c2
        • 2.Qc3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 3
  • Sets
    • R(f);N_GUARD::S(G),XP(g)
    • P(a);N_GUARD::R(C)
    • P(d);N_GUARD::R1(C),XP(c)
  • Tries
    • Try
      • Q(E);CHECK
      • Refutation
        • K(b);P-FLIGHT,XQ(E)
    • Try
      • Q(E);CHECK
      • Vars
        • K(b);P-FLIGHT::R1(C)
      • Refutation
        • S(e);XQ(E)
    • Try
      • Q(E);CHECK
      • Vars
        • K(b);P-FLIGHT::R1(C)
      • Refutation
        • K(b);P_SPINP(d),P_SPINR(f),S_FLIGHT,XQ(E)
  • Actual
    • Q(E);
    • Threat
      • QAB1(E),XP(a)
    • Vars
      • K(b);P-FLIGHT,P_SPINP(a)::R1(C)
      • K(b);P_SPINP(d),P_SPINR(f),S_FLIGHT::S(G),XP(g)
      • K(b);P_SPINP(c),S_FLIGHT::R1(C),XP(c)
      • P(a);::QAB1(E)
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