MESON Chess Problem Database

Problem Display
PID: 187677 (3Q4/3P3N/R6p/7k/5n2/5K2/3B4/8 w - - 0 1)

Neukomm, Gyula (Julius) R

Magyar Sakklap, 1909

3Q4/3P3N/R6p/7k/5n2/5K2/3B4/8

#2

6 + 3

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Se2
      • 2.Rxh6#
    • 1...Sg2
      • 2.Rxh6#
    • 1...Sd3
      • 2.Rxh6#
    • 1...Sh3
      • 2.Rxh6#
    • 1...Sd5
      • 2.Rxh6#
  • Tries
    • 1.Kg3?
      • threat
        • 2.Qh4#
      • 1...Se6
        • 2.Qe8#
      • 1...Sg2
        • 2.Rxh6#
        • 2.Qa5#
        • 2.Qe8#
      • 1...Sg6
        • 2.Sf6#
      • 1...Se2+!
    • 1.Be1?
      • threat
        • 2.Qh4#
      • 1...Se6
        • 2.Qe8#
      • 1...Sg2
        • 2.Qa5#
        • 2.Qe8#
      • 1...Sg6!
    • 1.Ra4?
      • 1...Sg6
        • 2.Sf6#
      • 1...Se2
        • 2.Qe8#
      • 1...Sg2
        • 2.Qe8#
      • 1...Sd3
        • 2.Qe8#
      • 1...Sh3
        • 2.Qe8#
      • 1...Sd5
        • 2.Qe8#
      • 1...Se6
        • 2.Qe8#
      • 1...Kg6!
    • 1.Ra5+?
      • 1...Kg6
        • 2.Qg8#
      • 1...Sd5!
    • 1.Qa5+?
      • 1...Sd5
        • 2.Rxh6#
      • 1...Kh4!
    • 1.Qf8?
      • threat
        • 2.Rxh6#
        • 2.Qxh6#
      • 1...Se6
        • 2.Qxh6#
      • 1...Sg6
        • 2.Qxh6#
      • 1...Kh4!
    • 1.Qg8?
      • threat
        • 2.Qg4#
      • 1...Kh4
        • 2.Qg4#
      • 1...Sg6!
  • Keys
    • 1.Rf6!
      • 1...Kh4
        • 2.Rxh6#
      • 1...Sg6
        • 2.Rf5#
      • 1...Se2
        • 2.Rxh6#
      • 1...Sg2
        • 2.Rxh6#
      • 1...Sd3
        • 2.Rxh6#
      • 1...Sh3
        • 2.Rxh6#
      • 1...Sd5
        • 2.Rxh6#
      • 1...Se6
        • 2.Rxh6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • S(a);::R1(C),XP(c)
  • Tries
    • Try
      • K(B);P-FLIGHT
      • Threat
        • QAR1(F)
      • Vars
        • S(a);N_GUARD::QAB(F)
        • S(a);SBLOCK::S(E)
      • Refutation
        • S(a);CHECK
    • Try
      • B(A);
      • Threat
        • QAR1(F)
      • Vars
        • S(a);N_GUARD::QAB(F)
      • Refutation
        • S(a);
    • Try
      • R(C);
      • Vars
        • S(a);SBLOCK::S(E)
        • S(a);N_GUARD::QAB(F)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • R(C);CHECK
      • Vars
        • K(b);S_FLIGHT::QAR2(F)
      • Refutation
        • S(a);P_SPINS(a)
    • Try
      • Q(F);CHECK
      • Vars
        • S(a);P_SPINS(a)::R1(C),XP(c)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • Q(F);
      • Threat
        • DUALS(2)
      • Vars
        • S(a);::QAR1(F),XP(c)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • Q(F);
      • Threat
        • QAB1(F)
      • Vars
        • K(b);P-FLIGHT::QAR1(F)
      • Refutation
        • S(a);
  • Actual
    • R(C);
    • Vars
      • K(b);P-FLIGHT::QAB(F)+R(C),DCHECK,XP(c)
      • S(a);SBLOCK::R(C)
      • S(a);::R1(C),XP(c)
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