MESON Chess Problem Database

Problem Display
PID: 181919 (5Nnq/2Q3n1/3p1p2/r3kpr1/1N1p1R1b/6p1/3P2P1/2B3K1 w - - 0 1)

von Sponer, Gyorgy Janos Andor

Pesti Naplo, 1905

5Nnq/2Q3n1/3p1p2/r3kpr1/1N1p1R1b/6p1/3P2P1/2B3K1

#2

8 + 12

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Rd5
      • 2.Sd3#
  • Tries
    • 1.Qxa5+?
      • 1...d5
        • 2.Qc7#
      • 1...Kxf4!
    • 1.Qc3?
      • threat
        • 2.Qxd4#
      • 1...Kxf4
        • 2.Qxd4#
      • 1...dxc3
        • 2.d4#
      • 1...d5
        • 2.Qc7#
      • 1...Rd5
        • 2.Sd3#
      • 1...Se6!
  • Keys
    • 1.Qc4!
      • threat
        • 2.Sd3#
        • 2.Qxd4#
      • 1...Kxf4
        • 2.Qxd4#
      • 1...d5
        • 2.Qc7#
      • 1...Ra3
        • 2.Qxd4#
      • 1...Rd5
        • 2.Sd3#
      • 1...Se6
        • 2.Sd3#
      • 1...d3
        • 2.Sxd3#
        • 2.Sc6#
        • 2.Sd7#
        • 2.Bb2#
        • 2.Qd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • R(d);SBLOCK::S(E)
  • Tries
    • Try
      • Q(G);CHECK,N_PINP(h),XR(d)
      • Vars
        • P(h);OGATEB,P_SPINP(h)::QAB(G)
      • Refutation
        • K(e);S_FLIGHT,XR(F)
    • Try
      • Q(G);N_PINP(h),P_PINP(b)
      • Threat
        • QAB1(G),XP(b)
      • Vars
        • K(e);N_SPINP(b),S_FLIGHT,XR(F)::QAR2(G),XP(b)
        • P(b);N_SPINP(b),OGATE,XQ(G)::P(C)
        • P(h);OGATEB::QAB(G)
        • R(d);SBLOCK::S(E)
      • Refutation
        • S(j);
  • Actual
    • Q(G);N_PINP(h)
    • Threat
      • DUALS(2)
    • Vars
      • K(e);P_SPINP(b),S_FLIGHT,XR(F)::QAR2(G),XP(b)
      • P(h);OGATEB::QAB(G)
      • R(d);::QAB1(G),XP(b)
      • R(d);::S(E)
      • S(j);::S(E)
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