MESON Chess Problem Database

Problem Display
PID: 92888 (8/8/2K5/8/4p3/8/pR1Rp2p/r1k1rb1Q w - - 0 1)

Scheel, Johan

Tidskrift for Schack, 1915

8/8/2K5/8/4p3/8/pR1Rp2p/r1k1rb1Q

#2

4 + 8

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rb1
      • 2.Rbc2#
    • 1...Rd1
      • 2.Rdc2#
    • 1...Bg2
      • 2.Qxe1#
    • 1...Bh3
      • 2.Qxe1#
  • Tries
    • 1.Kb5?
      • 1...Rd1
        • 2.Rdc2#
      • 1...Bg2
        • 2.Qxe1#
      • 1...Bh3
        • 2.Qxe1#
      • 1...e3
        • 2.Qc6#
      • 1...Rb1!
    • 1.Kc5?
      • 1...Rb1
        • 2.Rbc2#
      • 1...Rd1
        • 2.Rdc2#
      • 1...Bg2
        • 2.Qxe1#
      • 1...Bh3
        • 2.Qxe1#
      • 1...e3!
    • 1.Kb6?
      • 1...e3
        • 2.Qc6#
      • 1...Rd1
        • 2.Rdc2#
      • 1...Bg2
        • 2.Qxe1#
      • 1...Bh3
        • 2.Qxe1#
      • 1...Rb1!
    • 1.Kd6?
      • 1...Rb1
        • 2.Rbc2#
      • 1...Bg2
        • 2.Qxe1#
      • 1...Bh3
        • 2.Qxe1#
      • 1...e3
        • 2.Qc6#
      • 1...Rd1!
    • 1.Kb7?
      • 1...Rd1
        • 2.Rdc2#
      • 1...Bg2
        • 2.Qxe1#
      • 1...Bh3
        • 2.Qxe1#
      • 1...e3
        • 2.Qc6#
      • 1...Rb1!
  • Keys
    • 1.Kc7!
      • 1...Rb1
        • 2.Rbc2#
      • 1...Rd1
        • 2.Rdc2#
      • 1...Bg2
        • 2.Qxe1#
      • 1...Bh3
        • 2.Qxe1#
      • 1...e3
        • 2.Qc6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • R(a);SBLOCK::R1(B)
    • R(c);SBLOCK::R1(C)
    • B(d);OGATE,P_SPINR(c)::QAR2(A),XR(c)
  • Tries
    • Try
      • K(D);S_FLIGHT
      • Vars
        • R(c);SBLOCK::R1(C)
        • B(d);OGATE,P_SPINR(c)::QAR2(A),XR(c)
        • P(h);OGATE::QAR(A)
      • Refutation
        • R(a);P_PINR(B)
    • Try
      • K(D);P-FLIGHT
      • Vars
        • R(a);SBLOCK::R1(B)
        • R(c);SBLOCK::R1(C)
        • B(d);OGATE,P_SPINR(c)::QAR2(A),XR(c)
      • Refutation
        • P(h);
    • Try
      • K(D);P-FLIGHT
      • Vars
        • P(h);OGATE::QAR(A)
        • R(c);SBLOCK::R1(C)
        • B(d);OGATE,P_SPINR(c)::QAR2(A),XR(c)
      • Refutation
        • R(a);P_PINR(B)
    • Try
      • K(D);P-FLIGHT
      • Vars
        • R(a);SBLOCK::R1(B)
        • B(d);OGATE,P_SPINR(c)::QAR2(A),XR(c)
        • P(h);OGATE::QAR(A)
      • Refutation
        • R(c);P_PINR(C)
    • Try
      • K(D);S_FLIGHT
      • Vars
        • R(c);SBLOCK::R1(C)
        • B(d);OGATE,P_SPINR(c)::QAR2(A),XR(c)
        • P(h);OGATE::QAR(A)
      • Refutation
        • R(a);P_PINR(B)
  • Actual
    • K(D);P-FLIGHT
    • Vars
      • R(a);SBLOCK::R1(B)
      • R(c);SBLOCK::R1(C)
      • B(d);OGATE,P_SPINR(c)::QAR2(A),XR(c)
      • P(h);OGATE::QAR(A)
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