MESON Chess Problem Database

Problem Display
PID: 102962 (8/8/1pN1B3/3R4/n1k5/3R4/8/2K5 w - - 0 1)

Shinkman, William Anthony

Il Littorale, 1929-1931

8/8/1pN1B3/3R4/n1k5/3R4/8/2K5

#2

5 + 3

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Kc2?
      • threat
        • 2.R3d4#
        • 2.Ra5#
        • 2.Re5#
        • 2.Rf5#
        • 2.Rg5#
        • 2.Rh5#
      • 1...Sc3
        • 2.Rxc3#
        • 2.R3d4#
      • 1...b5
        • 2.R3d4#
        • 2.Re5#
        • 2.Rf5#
        • 2.Rg5#
        • 2.Rh5#
      • 1...Sc5!
    • 1.Kd2?
      • threat
        • 2.Ra5#
        • 2.Re5#
        • 2.Rf5#
        • 2.Rg5#
        • 2.Rh5#
      • 1...Sc3
        • 2.Rxc3#
      • 1...b5
        • 2.Re5#
        • 2.Rf5#
        • 2.Rg5#
        • 2.Rh5#
      • 1...Sc5!
    • 1.Sa5+?
      • 1...Kb4
        • 2.Rb3#
      • 1...bxa5!
  • Keys
    • 1.Rb3!
      • threat
        • 2.Ra5#
        • 2.Rdb5#
        • 2.Re5#
        • 2.Rf5#
        • 2.Rg5#
        • 2.Rh5#
      • 1...Kxb3
        • 2.Rd3#
      • 1...Sc3
        • 2.Rb4#
      • 1...Sc5
        • 2.Rd4#
      • 1...b5
        • 2.Sa5#
        • 2.Rdxb5#
        • 2.Re5#
        • 2.Rf5#
        • 2.Rg5#
        • 2.Rh5#

This is a version of 9433

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(A);P-FLIGHT
      • Threat
        • DUALS(6)
      • Refutation
        • S(a);
    • Try
      • K(A);S_FLIGHT
      • Threat
        • DUALS(5)
      • Vars
        • S(a);N_GUARD::R1(B),XS(a)
      • Refutation
        • S(a);
    • Try
      • S(D);CHECK
      • Vars
        • K(b);P-FLIGHT::R1(B)
      • Refutation
        • P(c);XS(D)
  • Actual
    • R(B);
    • Threat
      • DUALS(6)
    • Vars
      • K(b);S_FLIGHT,XR(B)::B(E)+R(C),DCHECK
      • S(a);SBLOCK::R1(B)
      • S(a);SBLOCK::B(E)+R(C),DCHECK
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