MESON Chess Problem Database

Problem Display
PID: 214747 (8/1K3N2/pp1RP3/p1k1p2p/2P1rn1r/1Q2p3/8/8 w - - 0 1)

Wheeler, Charles Henry

Detroit Free Press, 1877

8/1K3N2/pp1RP3/p1k1p2p/2P1rn1r/1Q2p3/8/8

#2

6 + 10

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Rxc4
      • 2.Qxb6#
    • 1...Rd4
      • 2.Rc6#
    • 1...Se2
      • 2.Rd5#
    • 1...Sg2
      • 2.Rd5#
    • 1...Sd3
      • 2.Rd5#
    • 1...Sh3
      • 2.Rd5#
    • 1...Sd5
      • 2.Rxd5#
    • 1...Sxe6
      • 2.Rd5#
    • 1...Sg6
      • 2.Rd5#
  • Tries
    • 1.Kxa6?
      • threat
        • 2.Qb5#
      • 1...b5
        • 2.Qxb5#
      • 1...Sd5!
    • 1.Qb2?
      • threat
        • 2.Rc6#
      • 1...Rxc4
        • 2.Qxb6#
      • 1...Kxc4!
  • Keys
    • 1.Sg5!
      • threat
        • 2.Sxe4#
      • 1...Kxd6
        • 2.Qa3#
      • 1...Rxc4
        • 2.Qxb6#
      • 1...Sxe6
        • 2.Rd5#
      • 1...Sd5
        • 2.Rxd5#
      • 1...Rd4
        • 2.Rc6#
      • 1...Se2
        • 2.Rd5#
      • 1...Sg2
        • 2.Rd5#
      • 1...Sd3
        • 2.Rd5#
      • 1...Sh3
        • 2.Rd5#
      • 1...Sg6
        • 2.Rd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • R(b);SBLOCK,XP(B)::QAB1(A),XP(j)
    • R(b);SBLOCK::R1(C)
    • S(c);N_GUARD::R1(C)
    • S(c);N_GUARD::R1(C),XS(c)
    • S(c);N_GUARD,XP(D)::R1(C)
  • Tries
    • Try
      • K(E);S_FLIGHT,XP(i)
      • Threat
        • QAR1(A)
      • Vars
        • P(j);::QAR1(A),XP(j)
      • Refutation
        • S(c);
    • Try
      • Q(A);
      • Threat
        • R1(C)
      • Vars
        • R(b);SBLOCK,XP(B)::QAB1(A),XP(j)
      • Refutation
        • K(f);P-FLIGHT,XP(B)
  • Actual
    • S(F);
    • Threat
      • S(F),XR(b)
    • Vars
      • K(f);S_FLIGHT,XR(C)::QAB(A)
      • R(b);SBLOCK,XP(B)::QAB1(A),XP(j)
      • S(c);N_GUARD,XP(D)::R1(C)
      • S(c);N_GUARD::R1(C),XS(c)
      • R(b);SBLOCK::R1(C)
      • S(c);N_GUARD::R1(C)
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