MESON Chess Problem Database

Problem Display
PID: 178991 (1K6/8/1p6/1k6/3Q4/8/R7/8 w - - 0 1)

Suhr, Hans

Magasinet, 1941

1K6/8/1p6/1k6/3Q4/8/R7/8

#2

3 + 2

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Tries
    • 1.Rb2+?
      • 1...Ka6
        • 2.Qxb6#
        • 2.Qa4#
      • 1...Kc6
        • 2.Rxb6#
      • 1...Ka5!
    • 1.Rc2?
      • 1...Ka6
        • 2.Qa4#
      • 1...Ka5!
    • 1.Rd2?
      • 1...Ka6
        • 2.Qa4#
      • 1...Kc6
        • 2.Qc4#
        • 2.Qd5#
      • 1...Ka5!
  • Keys
    • 1.Ra6!
      • 1...Kxa6
        • 2.Qa4#
      • 1...Kc6
        • 2.Rxb6#

FEATURES

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