MESON Chess Problem Database

Problem Display
PID: 39826 (8/8/8/1R6/pKN5/P5P1/k2PQ2q/3R3b w - - 0 1)

Lindner, Laszlo

Mattbilder eines Lebens, 1996

8/8/8/1R6/pKN5/P5P1/k2PQ2q/3R3b

#2

8 + 4

SOLUTION

  • SOUND
  • Sets
    • 1...Qg1
      • 2.d3#
      • 2.d4#
    • 1...Qxg3
      • 2.d3#
      • 2.d4#
    • 1...Qh3
      • 2.d3#
      • 2.d4#
    • 1...Qh4
      • 2.d3#
      • 2.d4#
    • 1...Qh7
      • 2.d3#
    • 1...Qh8
      • 2.d4#
    • 1...Bg2
      • 2.d3#
      • 2.d4#
  • Tries
    • 1.Kxa4?
      • threat
        • 2.Rb2#
      • 1...Qh8
        • 2.d4#
      • 1...Bc6!
    • 1.Ka5?
      • threat
        • 2.Rb2#
      • 1...Qh8
        • 2.d4#
      • 1...Qh5!
    • 1.Qf1?
      • threat
        • 2.Ra1#
      • 1...Qxd2+
        • 2.Rxd2#
      • 1...Qh8!
    • 1.Qe1?
      • threat
        • 2.Ra1#
      • 1...Qxd2+
        • 2.Rxd2#
        • 2.Qxd2#
      • 1...Qh8!
    • 1.Qe5?
      • threat
        • 2.Ra1#
        • 2.Qa1#
        • 2.Qb2#
      • 1...Qg1
        • 2.Qa1#
        • 2.Qb2#
      • 1...Qh8
        • 2.Ra1#
      • 1...Qxd2+!
  • Keys
    • 1.Kc3!
      • threat
        • 2.Rb2#
      • 1...Qxg3+
        • 2.d3#
      • 1...Qh8+
        • 2.d4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • Q(c);N_GUARD::QAR(C)+P(B)
  • Tries
    • Try
      • K(F);P-FLIGHT,XP(d)
      • Threat
        • R1(H)
      • Vars
        • Q(c);N_GUARD::QAR(C)+P(B)
      • Refutation
        • B(a);P_PINR(H)
    • Try
      • K(F);S_FLIGHT
      • Threat
        • R1(H)
      • Vars
        • Q(c);N_GUARD::QAR(C)+P(B)
      • Refutation
        • Q(c);P_PINR(H)
    • Try
      • Q(C);
      • Threat
        • R1(A)
      • Vars
        • Q(c);CHECK,OGATE,XP(B)::R(A),XQ(c)
      • Refutation
        • Q(c);
    • Try
      • Q(C);
      • Threat
        • R1(A)
      • Refutation
        • Q(c);
    • Try
      • Q(C);
      • Threat
        • DUALS(3)
      • Vars
        • Q(c);::R1(A)
      • Refutation
        • Q(c);CHECK,XP(B)
  • Actual
    • K(F);S_FLIGHT
    • Threat
      • R1(H)
    • Vars
      • Q(c);CHECK,N_GUARD,XP(E)::QAR(C)+P(B)
      • Q(c);CHECK,N_GUARD::QAR(C)+P(B)
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