MESON Chess Problem Database

Problem Display
PID: 119986 (2N5/3B4/4P2P/2pk4/6K1/2P2P2/2P5/7Q w - - 0 1)

Esslinger, Fritz

Schweizerische Schachzeitung, 1906

2N5/3B4/4P2P/2pk4/6K1/2P2P2/2P5/7Q

#2

9 + 2

6490 yacpdb 2009
5454 Near Snap 2021

SOLUTION

  • SOUND
  • Sets
    • 1...c4
      • 2.Qh5#
  • Tries
    • 1.Kf4?
      • 1...c4
        • 2.Qh5#
      • 1...Kc4!
    • 1.Qb1?
      • 1...Kc4
        • 2.Qb3#
      • 1...c4
        • 2.Qb5#
      • 1...Ke5!
    • 1.Qc1?
      • 1...Ke5
        • 2.Qg5#
      • 1...c4
        • 2.Qg5#
      • 1...Kc4!
    • 1.Qd1+?
      • 1...Kc4
        • 2.Qd3#
      • 1...Ke5!
    • 1.Qe1?
      • threat
        • 2.Qe4#
      • 1...Kc4
        • 2.Sb6#
      • 1...c4!
    • 1.Qh2?
      • threat
        • 2.Sb6#
      • 1...c4
        • 2.Qd6#
        • 2.Qh5#
      • 1...Kc4!
    • 1.Qh4?
      • 1...Ke5
        • 2.Qg5#
      • 1...c4
        • 2.Qg5#
        • 2.Qh5#
      • 1...Kc4!
  • Keys
    • 1.Qa1!
      • 1...Kc4
        • 2.Sb6#
      • 1...Ke5
        • 2.c4#
      • 1...c4
        • 2.Qa5#

Anticipated by 119985(1906)

This anticipates 102140(1911)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • P(a);SBLOCK::QAR(A)
  • Tries
    • Try
      • K(E);P-FLIGHT
      • Vars
        • P(a);SBLOCK::QAR(A)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(A);
      • Vars
        • K(b);S_FLIGHT::QAB1(A)
        • P(a);OGATEB::QAR2(A)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • Q(A);
      • Vars
        • K(b);P-FLIGHT::QAR2(A)
        • P(a);SBLOCK::QAR(A)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • K(b);S_FLIGHT::QAB1(A)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • Q(A);
      • Threat
        • QAB1(A)
      • Vars
        • K(b);S_FLIGHT::S(I)
      • Refutation
        • P(a);
    • Try
      • Q(A);
      • Threat
        • S(I)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(A);
      • Vars
        • K(b);P-FLIGHT::QAR2(A)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • Q(A);
    • Vars
      • K(b);S_FLIGHT::S(I)
      • K(b);P-FLIGHT::QAB(A)+P(C)
      • P(a);OGATEB,SBLOCK::QAR(A)
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