MESON Chess Problem Database

Problem Display
PID: 205548 (8/8/8/8/8/2p1K3/N5R1/3k4 w - - 0 1)

de Savignac Castelet, G Arnaud

La Strategie, 1925

8/8/8/8/8/2p1K3/N5R1/3k4

#2

3 + 2

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Ke1
      • 2.Rg1#
    • 1...c2
      • 2.Rg1#
  • Tries
    • 1.Sc1?
      • 1...Ke1
        • 2.Rg1#
      • 1...c2
        • 2.Rg1#
      • 1...Kxc1!
    • 1.Sxc3+?
      • 1...Ke1
        • 2.Rg1#
      • 1...Kc1!
    • 1.Sb4?
      • threat
        • 2.Rg1#
      • 1...Ke1
        • 2.Rg1#
      • 1...Kc1!
    • 1.Rc2?
      • threat
        • 2.Rc1#
      • 1...Ke1
        • 2.Rc1#
      • 1...Kxc2!
    • 1.Rf2?
      • 1...c2
        • 2.Rf1#
      • 1...Ke1!
    • 1.Rg3?
      • 1...Ke1
        • 2.Rg1#
      • 1...c2
        • 2.Rg1#
      • 1...Kc2!
    • 1.Rg4?
      • 1...Ke1
        • 2.Rg1#
      • 1...c2
        • 2.Rg1#
      • 1...Kc2!
    • 1.Rg5?
      • 1...Ke1
        • 2.Rg1#
      • 1...c2
        • 2.Rg1#
      • 1...Kc2!
    • 1.Rg6?
      • 1...Ke1
        • 2.Rg1#
      • 1...c2
        • 2.Rg1#
      • 1...Kc2!
    • 1.Rg7?
      • 1...Ke1
        • 2.Rg1#
      • 1...c2
        • 2.Rg1#
      • 1...Kc2!
    • 1.Rg8?
      • 1...Ke1
        • 2.Rg1#
      • 1...c2
        • 2.Rg1#
      • 1...Kc2!
  • Keys
    • 1.Rh2!
      • 1...Ke1
        • 2.Rh1#
      • 1...c2
        • 2.Rh1#

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 2
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • K(a);P-FLIGHT::R(B)
    • P(b);SBLOCK::R(B)
  • Tries
    • Try
      • S(A);
      • Vars
        • K(a);P-FLIGHT::R(B)
        • P(b);SBLOCK::R(B)
      • Refutation
        • K(a);P-FLIGHT,XS(A)
    • Try
      • S(A);CHECK,XP(b)
      • Vars
        • K(a);P-FLIGHT::R(B)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • S(A);
      • Threat
        • R(B)
      • Vars
        • K(a);P-FLIGHT::R(B)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • R(B);
      • Threat
        • R1(B)
      • Vars
        • K(a);P-FLIGHT::R(B)
      • Refutation
        • K(a);S_FLIGHT,XR(B)
    • Try
      • R(B);
      • Vars
        • P(b);SBLOCK::R(B)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • R(B);
      • Vars
        • K(a);P-FLIGHT::R(B)
        • P(b);SBLOCK::R(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(B);
      • Vars
        • K(a);P-FLIGHT::R(B)
        • P(b);SBLOCK::R(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(B);
      • Vars
        • K(a);P-FLIGHT::R(B)
        • P(b);SBLOCK::R(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(B);
      • Vars
        • K(a);P-FLIGHT::R(B)
        • P(b);SBLOCK::R(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(B);
      • Vars
        • K(a);P-FLIGHT::R(B)
        • P(b);SBLOCK::R(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(B);
      • Vars
        • K(a);P-FLIGHT::R(B)
        • P(b);SBLOCK::R(B)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • R(B);
    • Vars
      • K(a);P-FLIGHT::R(B)
      • P(b);SBLOCK::R(B)
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