MESON Chess Problem Database

Problem Display
PID: 223327 (8/2K5/3P4/1P2Np2/1B1kr3/1R4P1/Q4N2/8 w - - 0 1)

Carney, Edward

The Sunny South, 1886

8/2K5/3P4/1P2Np2/1B1kr3/1R4P1/Q4N2/8

#2

9 + 3

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Rxe5
      • 2.Rd3#
  • Tries
    • 1.Sf3+?
      • 1...Kd5
        • 2.Rd3#
      • 1...Kc4!
    • 1.Sc6+?
      • 1...Kd5
        • 2.Rd3#
      • 1...Kc4!
    • 1.Ra3?
      • threat
        • 2.Sf3#
        • 2.Sc6#
      • 1...Rxe5
        • 2.Rd3#
      • 1...Re3
        • 2.Sc6#
      • 1...Rf4
        • 2.Sc6#
      • 1...Kxe5!
    • 1.Rc3?
      • threat
        • 2.Sf3#
        • 2.Sc6#
      • 1...Rxe5
        • 2.Rd3#
        • 2.Qc4#
        • 2.Qd2#
      • 1...Re3
        • 2.Sc6#
      • 1...Rf4
        • 2.Sc6#
      • 1...Kxe5!
    • 1.Rf3?
      • threat
        • 2.Sc6#
      • 1...Rxe5
        • 2.Rd3#
      • 1...Kxe5!
  • Keys
    • 1.Re3!
      • 1...Kxe3
        • 2.Qd2#
      • 1...Kxe5
        • 2.Bc3#
      • 1...Rxe3
        • 2.Sc6#
      • 1...Rxe5
        • 2.Rd3#
      • 1...Rf4
        • 2.Qd2#
      • 1...Rg4
        • 2.Qd2#
      • 1...Rh4
        • 2.Qd2#
      • 1...f4
        • 2.Rxe4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
    • R(b);SBLOCK,XS(G)::R1(C)
  • Tries
    • Try
      • S(G);CHECK
      • Vars
        • K(a);P-FLIGHT::QAB(A)+R(C),DCHECK
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • S(G);CHECK
      • Vars
        • K(a);P-FLIGHT::QAB(A)+R(C),DCHECK
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • R(C);
      • Threat
        • DUALS(2)
      • Vars
        • R(b);SBLOCK,XS(G)::R1(C)
        • R(b);::S(G)
      • Refutation
        • K(a);S_FLIGHT,XS(G)
    • Try
      • R(C);
      • Threat
        • DUALS(2)
      • Vars
        • R(b);::S(G)
      • Refutation
        • K(a);S_FLIGHT,XS(G)
    • Try
      • R(C);
      • Threat
        • S(G)
      • Vars
        • R(b);SBLOCK,XS(G)::R1(C)
      • Refutation
        • K(a);S_FLIGHT,XS(G)
  • Actual
    • R(C);
    • Vars
      • K(a);S_FLIGHT,XR(C)::QAB1(A)
      • K(a);P_SPINR(b),S_FLIGHT,XS(G)::B(E)
      • R(b);SBLOCK,XR(C)::S(G)
      • R(b);SBLOCK,XS(G)::R1(C)
      • R(b);::QAR2(A)
      • P(c);N_GUARD::R1(C),XR(b)
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