MESON Chess Problem Database

Problem Display
PID: 107279 (8/2Q5/8/K2k1qNR/1R6/1P6/8/8 w - - 0 1)

Aschenazi, Marcel

Revista Romana de Sah, 1953

8/2Q5/8/K2k1qNR/1R6/1P6/8/8

#2

6 + 2

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Qc4+?
      • 1...Ke5
        • 2.Qd4#
      • 1...Kd6+!
    • 1.Qc6+?
      • 1...Ke5
        • 2.Sf3#
        • 2.Sf7#
      • 1...Kxc6+!
    • 1.Qd7+?
      • 1...Kc5
        • 2.Se4#
        • 2.Se6#
        • 2.Rc4#
        • 2.Rb5#
      • 1...Ke5
        • 2.Qd4#
      • 1...Qxd7!
  • Keys
    • 1.Qb6!
      • threat
        • 2.Rb5#
      • 1...Ke5
        • 2.Qd4#
      • 1...Qxg5
        • 2.Rxg5#
      • 1...Qc2
        • 2.Se4#
      • 1...Qd3
        • 2.Se4#
      • 1...Qd7
        • 2.Se6#
      • 1...Qc8
        • 2.Se6#
      • 1...Qf1
        • 2.Sf3#
      • 1...Qf2
        • 2.Sf3#
      • 1...Qf8
        • 2.Sf7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 9
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(F);CHECK
      • Vars
        • K(a);P-FLIGHT::QAB1(F)
      • Refutation
        • K(a);CHECK,P-FLIGHT
    • Try
      • Q(F);CHECK
      • Refutation
        • K(a);CHECK,S_FLIGHT,XQ(F)
    • Try
      • Q(F);CHECK
      • Vars
        • K(a);OGATE,P-FLIGHT::QAB1(F)
      • Refutation
        • Q(b);XQ(F)
  • Actual
    • Q(F);
    • Threat
      • R(B)
    • Vars
      • K(a);P-FLIGHT::QAB1(F)
      • Q(b);OGATE,P_SPINQ(b),XS(D)::R(E),XQ(b)
      • Q(b);::R(E)+S(D)
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