MESON Chess Problem Database

Problem Display
PID: 194144 (2NN2Q1/qrp5/r3P1KP/p2k4/1p1B1R2/1P4b1/3R1p1p/8 w - - 0 1)

Henriksen, Thorleif Cammillo

Tidskrift for Schack, 1917

2NN2Q1/qrp5/r3P1KP/p2k4/1p1B1R2/1P4b1/3R1p1p/8

#2

10 + 10

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Rd6
      • 2.Se7#
    • 1...Rxe6+
      • 2.Qxe6#
    • 1...c5
      • 2.Ba1#
      • 2.Bb2#
      • 2.Bc3#
      • 2.Bf6#
      • 2.Bg7#
      • 2.Bh8#
    • 1...c6
      • 2.e7#
  • Tries
    • 1.Be3+?
      • 1...Ke5
        • 2.Qg7#
        • 2.Qh8#
      • 1...Qd4!
    • 1.Rf5+?
      • 1...Be5
        • 2.Rxe5#
      • 1...Ke4!
    • 1.Qf7?
      • threat
        • 2.Qf5#
      • 1...Rxe6+
        • 2.Qxe6#
      • 1...Bxf4!
  • Keys
    • 1.Kh7!
      • threat
        • 2.Qg5#
      • 1...c5+
        • 2.Bg7#
      • 1...c6+
        • 2.e7#
      • 1...Rxe6
        • 2.Qxe6#
      • 1...Bxf4
        • 2.Qg2#
      • 1...Bh4
        • 2.Qg2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • R(g);SBLOCK::S(H)
    • R(g);CHECK,OGATE,P_SPINR(g),XP(E)::QAB1(J),XR(g)
    • P(j);N_PINP(E)::QAB(J)+P(E)
  • Tries
    • Try
      • B(C);CHECK
      • Refutation
        • Q(h);P_SPINQ(h)
    • Try
      • R(D);CHECK
      • Vars
        • B(c);N_GUARD,P_SPINB(c)::R1(D),XB(c)
      • Refutation
        • K(f);S_FLIGHT
    • Try
      • Q(J);
      • Threat
        • QAR2(J)
      • Vars
        • R(g);CHECK,OGATE,P_SPINR(g),XP(E)::QAB1(J),XR(g)
      • Refutation
        • B(c);XR(D)
  • Actual
    • K(F);N_SPINP(E),S_FLIGHT
    • Threat
      • QAR(J)
    • Vars
      • P(j);CHECK,SBLOCK,S_CUTQ(h)::R(A)+B(C)
      • P(j);CHECK,S_CUTR(g)::QAB(J)+P(E)
      • R(g);OGATE,P_SPINR(g),XP(E)::QAB1(J),XR(g)
      • B(c);OGATE,XR(D)::QAB(J)
      • B(c);OGATE::QAB(J)
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