MESON Chess Problem Database

Problem Display
PID: 181114 (8/8/3K1Q2/8/p7/2R5/rkN5/1rR5 w - - 0 1)

Schultz, Erik Gustav

Tidskrift for Schack, 1904

8/8/3K1Q2/8/p7/2R5/rkN5/1rR5

#2

5 + 4

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Tries
    • 1.Rc4+?
      • 1...Kb3
        • 2.Rb4#
        • 2.Qc3#
      • 1...Kxc1!
    • 1.Rc5+?
      • 1...Kb3
        • 2.Qc3#
      • 1...Kxc1!
    • 1.Rc6+?
      • 1...Kb3
        • 2.Qc3#
      • 1...Kxc1!
    • 1.Rc7+?
      • 1...Kb3
        • 2.Qc3#
      • 1...Kxc1!
    • 1.Rc8+?
      • 1...Kb3
        • 2.Qc3#
      • 1...Kxc1!
  • Keys
    • 1.Sa1!
      • 1...Kxa1
        • 2.Ra3#
      • 1...Rbxa1
        • 2.Qf2#
      • 1...Rxc1
        • 2.Rb3#
      • 1...Raxa1
        • 2.R1c2#
        • 2.Qf2#
      • 1...Ra3
        • 2.R3c2#
      • 1...a3
        • 2.R3c2#
        • 2.Rc4#
        • 2.Rc5#
        • 2.Rc6#
        • 2.Rc7#
        • 2.Rc8#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(C);CHECK
      • Refutation
        • K(c);S_FLIGHT,XR(A)
    • Try
      • R(C);CHECK
      • Vars
        • K(c);P-FLIGHT::QAR1(E)
      • Refutation
        • K(c);S_FLIGHT,XR(A)
    • Try
      • R(C);CHECK
      • Vars
        • K(c);P-FLIGHT::QAR1(E)
      • Refutation
        • K(c);S_FLIGHT,XR(A)
    • Try
      • R(C);CHECK
      • Vars
        • K(c);P-FLIGHT::QAR1(E)
      • Refutation
        • K(c);S_FLIGHT,XR(A)
    • Try
      • R(C);CHECK
      • Vars
        • K(c);P-FLIGHT::QAR1(E)
      • Refutation
        • K(c);S_FLIGHT,XR(A)
  • Actual
    • S(B);
    • Vars
      • K(c);P_SPINR(a),S_FLIGHT,XS(B)::QAB(E)+R(C)
      • R(a);XS(B)::QAR(E)
      • R(a);SBLOCK,XR(A)::QAB(E)+R(C),DCHECK
      • R(b);SBLOCK::QAB(E)+R(C),DCHECK
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