MESON Chess Problem Database

Problem Display
PID: 22515 (8/8/8/5Q2/4R3/6P1/3KN1k1/8 w - - 0 1)

Meyer, Heinrich Friedrich Ludwig

Nuova Rivista degli Scacchi, 1881

8/8/8/5Q2/4R3/6P1/3KN1k1/8

#2

5 + 1

3713 Snap 2021
5454 Near Snap 2023

SOLUTION

  • SOUND
  • Sets
    • 1...Kh1
      • 2.Qh3#
  • Tries
    • 1.Kc1?
      • 1...Kh1
        • 2.Qh3#
      • 1...Kh2!
    • 1.Kd1?
      • 1...Kh1
        • 2.Qh3#
      • 1...Kh2!
    • 1.Ke1?
      • 1...Kh1
        • 2.Qh3#
      • 1...Kh2!
    • 1.Kc2?
      • 1...Kh1
        • 2.Qh3#
      • 1...Kh2!
    • 1.Kc3?
      • 1...Kh1
        • 2.Qh3#
      • 1...Kh2!
    • 1.Kd3?
      • 1...Kh1
        • 2.Qh3#
      • 1...Kh2!
    • 1.Ke3?
      • 1...Kh1
        • 2.Qh3#
      • 1...Kh2!
    • 1.Re3?
      • 1...Kh1
        • 2.Qh3#
      • 1...Kh2!
    • 1.Ra4?
      • 1...Kh1
        • 2.Qh3#
      • 1...Kh2!
    • 1.Rb4?
      • 1...Kh1
        • 2.Qh3#
      • 1...Kh2!
    • 1.Rc4?
      • 1...Kh1
        • 2.Qh3#
      • 1...Kh2!
    • 1.Rd4?
      • 1...Kh1
        • 2.Qh3#
      • 1...Kh2!
    • 1.Rf4?
      • 1...Kh1
        • 2.Qh3#
      • 1...Kh2!
    • 1.Re5?
      • 1...Kh1
        • 2.Qh3#
      • 1...Kh2!
    • 1.Re6?
      • 1...Kh1
        • 2.Qh3#
      • 1...Kh2!
    • 1.Re7?
      • 1...Kh1
        • 2.Qh3#
      • 1...Kh2!
    • 1.Re8?
      • 1...Kh1
        • 2.Qh3#
      • 1...Kh2!
    • 1.Qh3+?
      • 1...Kf2
        • 2.Rf4#
      • 1...Kf3
        • 2.Rf4#
      • 1...Kxh3!
    • 1.Qf1+?
      • 1...Kh2
        • 2.Rh4#
      • 1...Kxf1!
    • 1.Qf2+?
      • 1...Kh1
        • 2.Rh4#
        • 2.Qg1#
      • 1...Kh3
        • 2.Sg1#
        • 2.Rh4#
      • 1...Kxf2!
    • 1.Qf3+?
      • 1...Kh2
        • 2.Rh4#
      • 1...Kh3
        • 2.Rh4#
        • 2.Qh1#
      • 1...Kxf3!
    • 1.Qh5?
      • 1...Kf1
        • 2.Qf3#
      • 1...Kf2!
  • Keys
    • 1.Qd5!
      • 1...Kf1
        • 2.Rf4#
      • 1...Kh1
        • 2.Rh4#
      • 1...Kf2
        • 2.Rf4#
      • 1...Kh2
        • 2.Rh4#
      • 1...Kf3
        • 2.Rf4#
      • 1...Kh3
        • 2.Rh4#

Anticipated by 44840(0000), 220390(1881)

This anticipates 165089(1922), 248240(1947)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • K(a);S_FLIGHT::QAR2(E)
  • Tries
    • Try
      • K(A);S_FLIGHT
      • Vars
        • K(a);S_FLIGHT::QAR2(E)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • K(A);P-FLIGHT
      • Vars
        • K(a);S_FLIGHT::QAR2(E)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • K(A);S_FLIGHT
      • Vars
        • K(a);S_FLIGHT::QAR2(E)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • K(A);P-FLIGHT
      • Vars
        • K(a);S_FLIGHT::QAR2(E)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • K(A);S_FLIGHT
      • Vars
        • K(a);S_FLIGHT::QAR2(E)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • K(A);P-FLIGHT
      • Vars
        • K(a);S_FLIGHT::QAR2(E)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • K(A);S_FLIGHT
      • Vars
        • K(a);S_FLIGHT::QAR2(E)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • R(D);
      • Vars
        • K(a);S_FLIGHT::QAR2(E)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • R(D);
      • Vars
        • K(a);S_FLIGHT::QAR2(E)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • R(D);
      • Vars
        • K(a);S_FLIGHT::QAR2(E)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • R(D);
      • Vars
        • K(a);S_FLIGHT::QAR2(E)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • R(D);
      • Vars
        • K(a);S_FLIGHT::QAR2(E)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • R(D);
      • Vars
        • K(a);S_FLIGHT::QAR2(E)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • R(D);
      • Vars
        • K(a);S_FLIGHT::QAR2(E)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • R(D);
      • Vars
        • K(a);S_FLIGHT::QAR2(E)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • R(D);
      • Vars
        • K(a);S_FLIGHT::QAR2(E)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • R(D);
      • Vars
        • K(a);S_FLIGHT::QAR2(E)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(E);CHECK
      • Vars
        • K(a);P-FLIGHT::R(D)
        • K(a);S_FLIGHT::R1(D)
      • Refutation
        • K(a);S_FLIGHT,XQ(E)
    • Try
      • Q(E);CHECK
      • Vars
        • K(a);P-FLIGHT::R(D)
      • Refutation
        • K(a);S_FLIGHT,XQ(E)
    • Try
      • Q(E);CHECK
      • Refutation
        • K(a);P-FLIGHT,XQ(E)
    • Try
      • Q(E);CHECK
      • Vars
        • K(a);P-FLIGHT::R(D)
      • Refutation
        • K(a);S_FLIGHT,XQ(E)
    • Try
      • Q(E);
      • Vars
        • K(a);S_FLIGHT::QAR2(E)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • Q(E);
    • Vars
      • K(a);S_FLIGHT::R(D)
      • K(a);S_FLIGHT::QAB(E)+R(D),DCHECK
      • K(a);P-FLIGHT::R(D)
      • K(a);S_FLIGHT::R1(D)
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