MESON Chess Problem Database

Problem Display
PID: 250240 (8/8/8/5p2/5Q2/8/4K1pR/6kq w - - 0 1)

Szasz, Lajos

Magyar Sakkvilag, 1927

8/8/8/5p2/5Q2/8/4K1pR/6kq

#2

3 + 4

6490 yacpdb 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Qxh2
      • 2.Qc1#
  • Tries
    • 1.Rh3?
      • threat
        • 2.Qc1#
        • 2.Qe3#
        • 2.Qf2#
        • 2.Qd4#
      • 1...Qh2
        • 2.Qc1#
        • 2.Qxh2#
      • 1...Qxh3!
    • 1.Qg3?
      • 1...Qxh2
        • 2.Qe1#
      • 1...f4!
    • 1.Qe5?
      • 1...Qxh2
        • 2.Qa1#
      • 1...f4!
    • 1.Qd6?
      • 1...Qxh2
        • 2.Qd1#
      • 1...f4!
    • 1.Qh6?
      • 1...Qxh2
        • 2.Qc1#
      • 1...f4!
    • 1.Qc7?
      • 1...Qxh2
        • 2.Qc1#
      • 1...f4!
    • 1.Qb8?
      • 1...Qxh2
        • 2.Qb1#
      • 1...f4!
    • 1.Qh4?
      • 1...Qxh2
        • 2.Qe1#
      • 1...f4!
    • 1.Qxf5?
      • 1...Qxh2
        • 2.Qb1#
      • 1...Kxh2!
  • Keys
    • 1.Kf3!
      • 1...Kf1
        • 2.Qc1#
      • 1...Qxh2
        • 2.Qc1#

FEATURES

  • Static
    • TYPE = WAITER
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • Q(b);SBLOCK,XR(B)::QAR(C)
  • Tries
    • Try
      • R(B);
      • Threat
        • DUALS(4)
      • Refutation
        • Q(b);XR(B)
    • Try
      • Q(C);P_PINP(c)
      • Vars
        • Q(b);SBLOCK,XR(B)::QAR2(C)
      • Refutation
        • P(d);
    • Try
      • Q(C);
      • Vars
        • Q(b);SBLOCK,XR(B)::QAR(C)
      • Refutation
        • P(d);
    • Try
      • Q(C);
      • Vars
        • Q(b);SBLOCK,XR(B)::QAR(C)
      • Refutation
        • P(d);
    • Try
      • Q(C);
      • Vars
        • Q(b);SBLOCK,XR(B)::QAR(C)
      • Refutation
        • P(d);
    • Try
      • Q(C);
      • Vars
        • Q(b);SBLOCK,XR(B)::QAR(C)
      • Refutation
        • P(d);
    • Try
      • Q(C);
      • Vars
        • Q(b);SBLOCK,XR(B)::QAR(C)
      • Refutation
        • P(d);
    • Try
      • Q(C);
      • Vars
        • Q(b);SBLOCK,XR(B)::QAR2(C)
      • Refutation
        • P(d);
    • Try
      • Q(C);XP(d)
      • Vars
        • Q(b);SBLOCK,XR(B)::QAR(C)
      • Refutation
        • K(a);S_FLIGHT,XR(B)
  • Actual
    • K(A);S_FLIGHT
    • Vars
      • K(a);N_GUARD,P-FLIGHT::QAR(C)
      • Q(b);SBLOCK,XR(B)::QAR(C)
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