MESON Chess Problem Database

Problem Display
PID: 109671 (1b3Nn1/pN6/n3B3/4k1p1/4p3/2R5/5Q1K/8 w - - 0 1)

Walcott, George H

1st Prize, Manchester Weekly Times, 1892

(First published on Fri Nov 18 1892)

1b3Nn1/pN6/n3B3/4k1p1/4p3/2R5/5Q1K/8

#2

6 + 7

15 British Chess Magazine 1893
6490 yacpdb 2009
5454 Near Snap 2021
15239 Valois Notebooks 2022
17483 Hull Solving Ty. 2024

SOLUTION

  • SOUND
  • Sets
    • 1...Sc5
      • 2.Rxc5#
  • Tries
    • 1.Ba2?
      • threat
        • 2.Sg6#
        • 2.Sd7#
      • 1...Sc5
        • 2.Sg6#
        • 2.Rxc5#
      • 1...Sf6
        • 2.Sg6#
      • 1...Se7
        • 2.Sd7#
      • 1...e3!
    • 1.Bb3?
      • threat
        • 2.Sg6#
        • 2.Sd7#
      • 1...Sc5
        • 2.Sg6#
        • 2.Rxc5#
      • 1...Sf6
        • 2.Sg6#
      • 1...Se7
        • 2.Sd7#
      • 1...e3!
    • 1.Bc4?
      • threat
        • 2.Sg6#
        • 2.Sd7#
      • 1...Sc5
        • 2.Sg6#
      • 1...Sf6
        • 2.Sg6#
      • 1...Se7
        • 2.Sd7#
      • 1...e3!
    • 1.Bf7?
      • threat
        • 2.Sg6#
        • 2.Sd7#
      • 1...Sc5
        • 2.Sg6#
        • 2.Rxc5#
      • 1...Sf6
        • 2.Sg6#
      • 1...Se7
        • 2.Sd7#
      • 1...e3!
    • 1.Bxg8?
      • threat
        • 2.Sg6#
        • 2.Sd7#
      • 1...Sc5
        • 2.Sg6#
        • 2.Rxc5#
      • 1...e3!
    • 1.Rf3?
      • threat
        • 2.Rf5#
        • 2.Qb2#
      • 1...e3
        • 2.Qxe3#
      • 1...Sh6
        • 2.Qb2#
      • 1...Se7
        • 2.Qb2#
      • 1...exf3!
    • 1.Qg3+?
      • 1...Kd4
        • 2.Rc4#
      • 1...Kf6!
    • 1.Qd4+?
      • 1...Kf4
        • 2.Sg6#
      • 1...Kxd4+!
  • Keys
    • 1.Qb2!
      • threat
        • 2.Rf3#
      • 1...Kd4+
        • 2.Rg3#
      • 1...Kf6+
        • 2.Rc7#
      • 1...Kf4
        • 2.Sg6#
      • 1...e3
        • 2.Rc4#

This anticipates 108165(1985), 204965(2014)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • S(d);N_GUARD::R(C),XS(d)
  • Tries
    • Try
      • B(D);
      • Threat
        • DUALS(2)
      • Vars
        • S(g);::S(F)
      • Refutation
        • P(a);
    • Try
      • B(D);
      • Threat
        • DUALS(2)
      • Vars
        • S(g);::S(F)
      • Refutation
        • P(a);
    • Try
      • B(D);
      • Threat
        • DUALS(2)
      • Vars
        • S(d);::S(F)
        • S(g);::S(F)
      • Refutation
        • P(a);
    • Try
      • B(D);
      • Threat
        • DUALS(2)
      • Vars
        • S(g);::S(F)
      • Refutation
        • P(a);
    • Try
      • B(D);XS(g)
      • Threat
        • DUALS(2)
      • Refutation
        • P(a);
    • Try
      • R(C);
      • Threat
        • DUALS(2)
      • Vars
        • P(a);OGATEB::QAR2(A),XP(a)
        • S(g);::QAB(A)
      • Refutation
        • P(a);XR(C)
    • Try
      • Q(A);CHECK
      • Vars
        • K(b);P_PINQ(A),S_FLIGHT::R1(C)
      • Refutation
        • K(b);P_PINQ(A),S_FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • K(b);P_SPINP(a),S_FLIGHT::S(F)
      • Refutation
        • K(b);CHECK,S_FLIGHT,XQ(A)
  • Actual
    • Q(A);
    • Threat
      • QAB(A)+R(C)
    • Vars
      • K(b);CHECK,S_FLIGHT::QAB(A)+R(C)
      • K(b);S_FLIGHT::S(F)
      • P(a);::QAB(A)+R(C)
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