MESON Chess Problem Database

Problem Display
PID: 2847 (3RN3/8/1p1Bk3/pP5P/K6P/2P2P2/5p2/5B2 w - - 0 1)

Decker, Adolfph L

Source?, 1890

3RN3/8/1p1Bk3/pP5P/K6P/2P2P2/5p2/5B2

#2

10 + 4

2681 All Change Here! 1919
5454 Near Snap 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Kd5
      • 2.Sc7#
    • 1...Kf5
      • 2.Bh3#
    • 1...Kf7
      • 2.Bc4#
  • Tries
    • 1.Ka3?
      • 1...Kd5
        • 2.Sc7#
      • 1...Kf5
        • 2.Bh3#
      • 1...Kf7
        • 2.Bc4#
      • 1...a4!
    • 1.Kb3?
      • 1...Kd5
        • 2.Sc7#
        • 2.Bc4#
      • 1...Kf5
        • 2.Bh3#
      • 1...Kf7
        • 2.Bc4#
      • 1...a4+!
    • 1.Rd7?
      • 1...Kd5
        • 2.Sc7#
      • 1...Kf5
        • 2.Bh3#
      • 1...Kxd7!
    • 1.Ra8?
      • 1...Kf5
        • 2.Bh3#
      • 1...Kd7
        • 2.Bh3#
      • 1...Kf7
        • 2.Bc4#
      • 1...Kd5!
    • 1.Rb8?
      • 1...Kf5
        • 2.Bh3#
      • 1...Kd7
        • 2.Bh3#
      • 1...Kf7
        • 2.Bc4#
      • 1...Kd5!
    • 1.c4?
      • 1...Kf5
        • 2.Bh3#
      • 1...Kf7!
  • Keys
    • 1.Rc8!
      • 1...Kd5
        • 2.Bc4#
      • 1...Kf5
        • 2.Bh3#
      • 1...Kd7
        • 2.Bh3#
      • 1...Kf7
        • 2.Bc4#

Anticipated by 48622(0000)

This anticipates 150335(1924), 163326(1926), 209843(1978), 215938(2019)

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(d);S_FLIGHT::S(J)
    • K(d);S_FLIGHT::B(A)
  • Tries
    • Try
      • K(D);P-FLIGHT
      • Vars
        • K(d);S_FLIGHT::S(J)
        • K(d);S_FLIGHT::B(A)
      • Refutation
        • P(b);
    • Try
      • K(D);S_FLIGHT
      • Vars
        • K(d);S_FLIGHT::B(A)
      • Refutation
        • P(b);CHECK
    • Try
      • R(I);
      • Vars
        • K(d);S_FLIGHT::S(J)
        • K(d);S_FLIGHT::B(A)
      • Refutation
        • K(d);S_FLIGHT,XR(I)
    • Try
      • R(I);
      • Vars
        • K(d);S_FLIGHT::B(A)
      • Refutation
        • K(d);S_FLIGHT
    • Try
      • R(I);
      • Vars
        • K(d);S_FLIGHT::B(A)
      • Refutation
        • K(d);S_FLIGHT
    • Try
      • P(B);
      • Vars
        • K(d);S_FLIGHT::B(A)
      • Refutation
        • K(d);S_FLIGHT
  • Actual
    • R(I);
    • Vars
      • K(d);S_FLIGHT::B(A)
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