MESON Chess Problem Database

Problem Display
PID: 34557 (8/6p1/1N4P1/4P3/4k3/2PR4/8/2K2Q2 w - - 0 1)

af Geyersstam, Fredrik

Source?, 1880

8/6p1/1N4P1/4P3/4k3/2PR4/8/2K2Q2

#2

7 + 2

3645 96 Schackproblem 1908
16 Chess Amateur (The) 1909
119 Tidskrift for Schack 1909

SOLUTION

  • SOUND
  • Tries
    • 1.Rd1?
      • threat
        • 2.Re1#
      • 1...Ke3
        • 2.Re1#
      • 1...Kxe5!
    • 1.Rd4+?
      • 1...Ke3
        • 2.Sc4#
        • 2.Sd5#
      • 1...Kxe5!
    • 1.Qf2?
      • threat
        • 2.Re3#
      • 1...Kxd3
        • 2.Qf3#
      • 1...Kxe5!
    • 1.Qf4+?
      • 1...Kxd3
        • 2.Qf3#
      • 1...Kxf4!
    • 1.Qf6?
      • 1...Kxd3
        • 2.Qf3#
      • 1...gxf6!
    • 1.Qf7?
      • 1...Kxd3
        • 2.Qf3#
      • 1...Kxe5!
  • Keys
    • 1.Qf8!
      • 1...Kxd3
        • 2.Qf3#
      • 1...Kxe5
        • 2.Re3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(D);
      • Threat
        • R(D)
      • Vars
        • K(a);P-FLIGHT::R(D)
      • Refutation
        • K(a);P-FLIGHT,XP(E)
    • Try
      • R(D);CHECK
      • Refutation
        • K(a);P-FLIGHT,XP(E)
    • Try
      • Q(B);
      • Threat
        • R1(D)
      • Vars
        • K(a);S_FLIGHT,XR(D)::QAR2(B)
      • Refutation
        • K(a);P-FLIGHT,XP(E)
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);S_FLIGHT,XR(D)::QAR2(B)
      • Refutation
        • K(a);P-FLIGHT,XQ(B)
    • Try
      • Q(B);
      • Vars
        • K(a);S_FLIGHT,XR(D)::QAR2(B)
      • Refutation
        • P(b);XQ(B)
    • Try
      • Q(B);
      • Vars
        • K(a);S_FLIGHT,XR(D)::QAR2(B)
      • Refutation
        • K(a);P-FLIGHT,XP(E)
  • Actual
    • Q(B);
    • Vars
      • K(a);S_FLIGHT,XR(D)::QAR2(B)
      • K(a);P-FLIGHT,XP(E)::R(D)
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