MESON Chess Problem Database

Problem Display
PID: 175522 (8/3p4/3r2P1/3pk1P1/3Rp1K1/2Q5/1P6/8 w - - 0 1)

Zimmermann, Stepan

Source?, 1900

8/3p4/3r2P1/3pk1P1/3Rp1K1/2Q5/1P6/8

#2

6 + 5

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...e3
      • 2.Qxe3#
  • Tries
    • 1.Rd1+?
      • 1...Ke6
        • 2.Qf6#
      • 1...d4!
    • 1.Rd2+?
      • 1...Ke6
        • 2.Qf6#
      • 1...d4!
    • 1.Rd3+?
      • 1...Ke6
        • 2.Qf6#
      • 1...d4!
    • 1.Ra4+?
      • 1...Ke6
        • 2.Qf6#
      • 1...d4!
    • 1.Rb4+?
      • 1...Ke6
        • 2.Qf6#
      • 1...d4!
    • 1.Rc4+?
      • 1...Ke6
        • 2.Qf6#
      • 1...d4!
    • 1.Rxd5+?
      • 1...Ke6
        • 2.Re5#
        • 2.Qe5#
      • 1...Kxd5!
    • 1.Qg3+?
      • 1...Kxd4
        • 2.Qc3#
      • 1...Ke6!
  • Keys
    • 1.Qb3!
      • 1...Kxd4
        • 2.Qc3#
      • 1...Ke6
        • 2.Rxe4#
      • 1...Rxg6
        • 2.Qxd5#
      • 1...Ra6
        • 2.Qxd5#
      • 1...Rb6
        • 2.Qxd5#
      • 1...Rc6
        • 2.Qxd5#
      • 1...Rf6
        • 2.Qxd5#
      • 1...Re6
        • 2.Rxd5#
        • 2.Qxd5#
      • 1...e3
        • 2.Qxe3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
    • P(a);OGATEB::QAR2(B),XP(a)
  • Tries
    • Try
      • R(C);CHECK
      • Vars
        • K(c);OGATE,P-FLIGHT::QAR1(B)
      • Refutation
        • P(b);P_SPINP(b)
    • Try
      • R(C);CHECK
      • Vars
        • K(c);OGATE,P-FLIGHT::QAR1(B)
      • Refutation
        • P(b);P_SPINP(b)
    • Try
      • R(C);CHECK
      • Vars
        • K(c);OGATE,P-FLIGHT::QAR1(B)
      • Refutation
        • P(b);P_SPINP(b)
    • Try
      • R(C);CHECK
      • Vars
        • K(c);OGATE,P-FLIGHT::QAR1(B)
      • Refutation
        • P(b);P_SPINP(b)
    • Try
      • R(C);CHECK
      • Vars
        • K(c);OGATE,P-FLIGHT::QAR1(B)
      • Refutation
        • P(b);P_SPINP(b)
    • Try
      • R(C);CHECK
      • Vars
        • K(c);OGATE,P-FLIGHT::QAR1(B)
      • Refutation
        • P(b);P_SPINP(b)
    • Try
      • R(C);CHECK,XP(b)
      • Refutation
        • K(c);P-FLIGHT,XR(C)
    • Try
      • Q(B);CHECK
      • Vars
        • K(c);OGATEB,S_FLIGHT,XR(C)::QAB1(B)
      • Refutation
        • K(c);P-FLIGHT
  • Actual
    • Q(B);
    • Vars
      • K(c);OGATEB,S_FLIGHT,XR(C)::QAB1(B)
      • K(c);P-FLIGHT,P_SPINP(b)::R(C),XP(a)
      • R(d);N_GUARD,P_PINP(E),XP(F)::QAR1(B),XP(b)
      • R(d);N_GUARD::QAR1(B),XP(b)
      • P(a);OGATEB::QAR2(B),XP(a)
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