MESON Chess Problem Database

Problem Display
PID: 170193 (8/6R1/1P1N4/1pk4K/3N4/7R/7B/Q7 w - - 0 1)

Jaeger, Peter R

Tages-Anzeiger, 1987

8/6R1/1P1N4/1pk4K/3N4/7R/7B/Q7

#2

8 + 2

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Kb4
      • 2.Qa3#
    • 1...Kd5
      • 2.Rg5#
    • 1...Kxb6
      • 2.Qa7#
  • Tries
    • 1.Kg4?
      • 1...Kb4
        • 2.Qa3#
      • 1...Kd5
        • 2.Rh5#
        • 2.Rg5#
      • 1...Kxb6
        • 2.Qa7#
      • 1...b4!
    • 1.Kh4?
      • 1...Kb4
        • 2.Qa3#
      • 1...Kd5
        • 2.Rg5#
      • 1...Kxb6
        • 2.Qa7#
      • 1...b4!
    • 1.Kg6?
      • 1...Kb4
        • 2.Qa3#
      • 1...Kd5
        • 2.Rh5#
      • 1...Kxb6
        • 2.Qa7#
      • 1...b4!
    • 1.Kh6?
      • 1...Kb4
        • 2.Qa3#
      • 1...Kd5
        • 2.Rh5#
        • 2.Rg5#
      • 1...Kxb6
        • 2.Qa7#
      • 1...b4!
    • 1.Bf4?
      • 1...Kb4
        • 2.Qa3#
      • 1...Kd5
        • 2.Rg5#
      • 1...Kxb6
        • 2.Qa7#
      • 1...b4!
    • 1.Be5?
      • 1...Kb4
        • 2.Qa3#
      • 1...Kxb6
        • 2.Qa7#
      • 1...b4
        • 2.Qa5#
      • 1...Kd5!
    • 1.Rb3?
      • threat
        • 2.Rxb5#
      • 1...Kd5
        • 2.Rxb5#
        • 2.Rg5#
      • 1...Kxb6
        • 2.Rxb5#
        • 2.Qa7#
      • 1...b4!
    • 1.Re3?
      • 1...Kb4
        • 2.Qa3#
      • 1...Kd5
        • 2.Rg5#
      • 1...Kxb6
        • 2.Qa7#
      • 1...b4!
    • 1.Rf3?
      • 1...Kb4
        • 2.Qa3#
      • 1...Kd5
        • 2.Rf5#
        • 2.Rg5#
      • 1...Kxb6
        • 2.Qa7#
      • 1...b4!
    • 1.Rhg3?
      • 1...Kb4
        • 2.Qa3#
      • 1...Kd5
        • 2.R3g5#
      • 1...Kxb6
        • 2.Qa7#
      • 1...Kxd6
        • 2.R3g5#
      • 1...b4!
    • 1.Rh4?
      • 1...Kd5
        • 2.Rg5#
      • 1...Kxb6
        • 2.Qa7#
      • 1...b4
        • 2.Qa5#
      • 1...Kb4!
    • 1.Rg4?
      • 1...Kb4
        • 2.Sb3#
        • 2.Se6#
        • 2.Qa3#
      • 1...Kd5
        • 2.Rg5#
      • 1...b4
        • 2.Qa5#
      • 1...Kxb6!
    • 1.Rg5+?
      • 1...Kb4
        • 2.Sc2#
        • 2.Sc6#
        • 2.Rb3#
        • 2.Rxb5#
        • 2.Qa3#
      • 1...Kxb6!
    • 1.Rc7+?
      • 1...Kb4
        • 2.Sc2#
        • 2.Rb3#
        • 2.Qa3#
      • 1...Kxb6
        • 2.Sc8#
        • 2.Rc6#
        • 2.Qa7#
      • 1...Kd5!
    • 1.Rf7?
      • 1...Kb4
        • 2.Qa3#
      • 1...Kd5
        • 2.Rf5#
      • 1...Kxb6
        • 2.Qa7#
      • 1...b4!
    • 1.Qb2?
      • 1...Kd5
        • 2.Rg5#
      • 1...Kxb6
        • 2.Qxb5#
      • 1...b4!
    • 1.Qc3+?
      • 1...Kd5
        • 2.Rg5#
      • 1...Kxb6!
  • Keys
    • 1.Rd3!
      • 1...Kb4
        • 2.Qa3#
      • 1...Kd5
        • 2.Rg5#
      • 1...Kxb6
        • 2.Qa7#
      • 1...b4
        • 2.Qa5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(b);S_FLIGHT::QAB1(A)
    • K(b);P-FLIGHT::R(H)
    • K(b);OGATEB,S_FLIGHT,XP(F)::QAB1(A)
  • Tries
    • Try
      • K(E);S_FLIGHT
      • Vars
        • K(b);S_FLIGHT::QAB1(A)
        • K(b);OGATEB,S_FLIGHT,XP(F)::QAB1(A)
      • Refutation
        • P(a);
    • Try
      • K(E);P-FLIGHT
      • Vars
        • K(b);S_FLIGHT::QAB1(A)
        • K(b);P-FLIGHT::R(H)
        • K(b);OGATEB,S_FLIGHT,XP(F)::QAB1(A)
      • Refutation
        • P(a);
    • Try
      • K(E);S_FLIGHT
      • Vars
        • K(b);S_FLIGHT::QAB1(A)
        • K(b);P-FLIGHT::R(C)
        • K(b);OGATEB,S_FLIGHT,XP(F)::QAB1(A)
      • Refutation
        • P(a);
    • Try
      • K(E);P-FLIGHT
      • Vars
        • K(b);S_FLIGHT::QAB1(A)
        • K(b);OGATEB,S_FLIGHT,XP(F)::QAB1(A)
      • Refutation
        • P(a);
    • Try
      • B(B);
      • Vars
        • K(b);S_FLIGHT::QAB1(A)
        • K(b);P-FLIGHT::R(H)
        • K(b);OGATEB,S_FLIGHT,XP(F)::QAB1(A)
      • Refutation
        • P(a);
    • Try
      • B(B);
      • Vars
        • K(b);S_FLIGHT::QAB1(A)
        • K(b);OGATEB,S_FLIGHT,XP(F)::QAB1(A)
        • P(a);OGATEB::QAR2(A)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • R(C);
      • Threat
        • R1(C),XP(a)
      • Refutation
        • P(a);
    • Try
      • R(C);
      • Vars
        • K(b);S_FLIGHT::QAB1(A)
        • K(b);P-FLIGHT::R(H)
        • K(b);OGATEB,S_FLIGHT,XP(F)::QAB1(A)
      • Refutation
        • P(a);
    • Try
      • R(C);
      • Vars
        • K(b);S_FLIGHT::QAB1(A)
        • K(b);OGATEB,S_FLIGHT,XP(F)::QAB1(A)
      • Refutation
        • P(a);
    • Try
      • R(C);
      • Vars
        • K(b);S_FLIGHT::QAB1(A)
        • K(b);P-FLIGHT::R(C)
        • K(b);OGATEB,S_FLIGHT,XP(F)::QAB1(A)
        • K(b);S_FLIGHT,XS(G)::B(B)+R(C)
      • Refutation
        • P(a);
    • Try
      • R(C);
      • Vars
        • K(b);P-FLIGHT::R(H)
        • K(b);OGATEB,S_FLIGHT,XP(F)::QAB1(A)
        • P(a);OGATEB::QAR2(A)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • R(H);
      • Vars
        • K(b);P-FLIGHT::R(H)
        • P(a);OGATEB::QAR2(A)
      • Refutation
        • K(b);S_FLIGHT,XP(F)
    • Try
      • R(H);CHECK
      • Refutation
        • K(b);S_FLIGHT,XP(F)
    • Try
      • R(H);CHECK
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • R(H);
      • Vars
        • K(b);S_FLIGHT::QAB1(A)
        • K(b);P-FLIGHT::R(H)
        • K(b);OGATEB,S_FLIGHT,XP(F)::QAB1(A)
      • Refutation
        • P(a);
    • Try
      • Q(A);
      • Vars
        • K(b);P-FLIGHT::R(H)
        • K(b);P_SPINP(a),S_FLIGHT,XP(F)::QAR1(A),XP(a)
      • Refutation
        • P(a);
    • Try
      • Q(A);CHECK
      • Vars
        • K(b);P-FLIGHT::R(H)
      • Refutation
        • K(b);S_FLIGHT,XP(F)
  • Actual
    • R(C);
    • Vars
      • K(b);S_FLIGHT::QAB1(A)
      • K(b);P-FLIGHT::R(H)
      • K(b);OGATEB,S_FLIGHT,XP(F)::QAB1(A)
      • P(a);OGATEB::QAR2(A)
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