MESON Chess Problem Database

Problem Display
PID: 129836 (8/8/8/8/2p5/kNQ5/8/4K2R w - - 0 1)

Kabes, Vlastimil

Ruch, 1947

8/8/8/8/2p5/kNQ5/8/4K2R

#2

4 + 2

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Kd2?
      • threat
        • 2.Ra1#
      • 1...Ka2
        • 2.Ra1#
      • 1...Ka4!
    • 1.Ke2?
      • threat
        • 2.Ra1#
      • 1...Ka2
        • 2.Ra1#
      • 1...Ka4!
    • 1.Kf2?
      • threat
        • 2.Ra1#
      • 1...Ka2
        • 2.Ra1#
      • 1...Ka4!
    • 1.Rh2?
      • threat
        • 2.Sc5#
      • 1...cxb3
        • 2.Qa5#
      • 1...Ka4!
    • 1.Rh5?
      • threat
        • 2.Ra5#
      • 1...Ka4
        • 2.Ra5#
      • 1...Ka2!
  • Keys
    • 1.Rh3!
      • 1...Ka2
        • 2.Qa1#
      • 1...Ka4
        • 2.Qa5#
      • 1...cxb3
        • 2.Qxb3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(A);S_FLIGHT
      • Threat
        • R(B)
      • Vars
        • K(a);P-FLIGHT::R1(B)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • K(A);P-FLIGHT
      • Threat
        • R(B)
      • Vars
        • K(a);P-FLIGHT::R1(B)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • K(A);S_FLIGHT
      • Threat
        • R(B)
      • Vars
        • K(a);P-FLIGHT::R1(B)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • R(B);
      • Threat
        • QAR(D)+S(C)
      • Vars
        • P(b);P_SPINP(b),SBLOCK,XS(C)::QAR2(D)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • R(B);
      • Threat
        • R(B)
      • Vars
        • K(a);P-FLIGHT::R1(B)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • R(B);
    • Vars
      • K(a);P-FLIGHT::QAR1(D)
      • P(b);OGATE,P_SPINP(b),XS(C)::QAR1(D),XP(b)
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